code refactor for InternalConfig

.gitignore

@@ -1,4 +1,5 @@
 .idea
+.DS_Store
 .vscode
 /categraf*
 *.log
@@ -6,4 +7,4 @@
 docker/conf
 docker/categraf
 /build
-/nohup.out
+/nohup.out

agent/metrics_agent.go

@@ -51,6 +51,11 @@ func (a *Agent) startMetricsAgent() error {
 			continue
 		}
 
+		if err = input.InitInternalConfig(); err != nil {
+			log.Println("E! failed to init input:", name, "error:", err)
+			continue
+		}
+
 		if err = input.Init(); err != nil {
 			if !errors.Is(err, types.ErrInstancesEmpty) {
 				log.Println("E! failed to init input:", name, "error:", err)
@@ -66,8 +71,12 @@ func (a *Agent) startMetricsAgent() error {
 
 			empty := true
 			for i := 0; i < len(instances); i++ {
-				err := instances[i].Init()
-				if err != nil {
+				if err := instances[i].InitInternalConfig(); err != nil {
+					log.Println("E! failed to init input:", name, "error:", err)
+					continue
+				}
+
+				if err := instances[i].Init(); err != nil {
 					if !errors.Is(err, types.ErrInstancesEmpty) {
 						log.Println("E! failed to init input:", name, "error:", err)
 					}

agent/metrics_reader.go

@@ -13,7 +13,6 @@ import (
 	"flashcat.cloud/categraf/pkg/runtimex"
 	"flashcat.cloud/categraf/types"
 	"flashcat.cloud/categraf/writer"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const agentHostnameLabelKey = "agent_hostname"
@@ -76,13 +75,19 @@ func (r *InputReader) startInput() {
 	}
 }
 
-func (r *InputReader) work(slist *list.SafeList) {
-	instances := r.input.GetInstances()
-	if instances == nil {
-		r.input.Gather(slist)
-		return
-	}
+func (r *InputReader) gatherOnce() {
+	defer func() {
+		if rc := recover(); rc != nil {
+			log.Println("E!", r.inputName, ": gather metrics panic:", r, string(runtimex.Stack(3)))
+		}
+	}()
 
+	// plugin level, for system plugins
+	slist := types.NewSampleList()
+	r.input.Gather(slist)
+	r.forward(r.input.Process(slist))
+
+	instances := r.input.GetInstances()
 	if len(instances) == 0 {
 		return
 	}
@@ -91,7 +96,7 @@ func (r *InputReader) work(slist *list.SafeList) {
 
 	for i := 0; i < len(instances); i++ {
 		r.waitGroup.Add(1)
-		go func(slist *list.SafeList, ins inputs.Instance) {
+		go func(ins inputs.Instance) {
 			defer r.waitGroup.Done()
 
 			it := ins.GetIntervalTimes()
@@ -102,79 +107,19 @@ func (r *InputReader) work(slist *list.SafeList) {
 				}
 			}
 
-			ins.Gather(slist)
-		}(slist, instances[i])
+			insList := types.NewSampleList()
+			ins.Gather(insList)
+			r.forward(ins.Process(insList))
+		}(instances[i])
 	}
 
 	r.waitGroup.Wait()
 }
 
-func (r *InputReader) gatherOnce() {
-	defer func() {
-		if rc := recover(); rc != nil {
-			log.Println("E!", r.inputName, ": gather metrics panic:", r, string(runtimex.Stack(3)))
-		}
-	}()
-
-	// gather
-	slist := list.NewSafeList()
-	r.work(slist)
-
-	// handle result
-	samples := slist.PopBackAll()
-
-	size := len(samples)
-	if size == 0 {
-		return
-	}
-
-	if config.Config.DebugMode {
-		log.Println("D!", r.inputName, ": gathered samples size:", size)
-	}
-
-	now := time.Now()
-	for i := 0; i < size; i++ {
-		if samples[i] == nil {
-			continue
-		}
-
-		s := samples[i].(*types.Sample)
-		if s == nil {
-			continue
-		}
-
-		if s.Timestamp.IsZero() {
-			s.Timestamp = now
-		}
-
-		if len(r.input.Prefix()) > 0 {
-			s.Metric = r.input.Prefix() + "_" + metricReplacer.Replace(s.Metric)
-		} else {
-			s.Metric = metricReplacer.Replace(s.Metric)
-		}
-
-		if s.Labels == nil {
-			s.Labels = make(map[string]string)
-		}
-
-		// add label: agent_hostname
-		if _, has := s.Labels[agentHostnameLabelKey]; !has {
-			if !config.Config.Global.OmitHostname {
-				s.Labels[agentHostnameLabelKey] = config.Config.GetHostname()
-			}
-		}
-
-		// add global labels
-		for k, v := range config.Config.Global.Labels {
-			if _, has := s.Labels[k]; !has {
-				s.Labels[k] = v
-			}
-		}
-
-		// write to remote write queue
-		writer.PushQueue(s)
-
-		// write to clickhouse queue
-		house.MetricsHouse.Push(s)
+func (r *InputReader) forward(slist *types.SampleList) {
+	arr := slist.PopBackAll()
+	for i := 0; i < len(arr); i++ {
+		writer.PushQueue(arr[i])
+		house.MetricsHouse.Push(arr[i])
 	}
 }

conf/input.system/system.toml

@@ -2,4 +2,4 @@
 # interval = 15
 
 # # whether collect metric: system_n_users
-# collect_user_number = false
+# collect_user_number = false

config/inline.go

@@ -1,19 +1,23 @@
 package config
 
-type Interval struct {
-	Interval Duration `toml:"interval"`
+import (
+	"time"
+
+	"flashcat.cloud/categraf/pkg/filter"
+	"flashcat.cloud/categraf/types"
+)
+
+const agentHostnameLabelKey = "agent_hostname"
+
+type InternalConfig struct {
+	Labels            map[string]string `toml:"labels"`
+	MetricsDrop       []string          `toml:"metrics_drop"`
+	MetricsPass       []string          `toml:"metrics_pass"`
+	MetricsDropFilter filter.Filter
+	MetricsPassFilter filter.Filter
 }
 
-func (i Interval) GetInterval() Duration {
-	return i.Interval
-}
-
-type InstanceConfig struct {
-	Labels        map[string]string `toml:"labels"`
-	IntervalTimes int64             `toml:"interval_times"`
-}
-
-func (ic InstanceConfig) GetLabels() map[string]string {
+func (ic *InternalConfig) GetLabels() map[string]string {
 	if ic.Labels != nil {
 		return ic.Labels
 	}
@@ -21,6 +25,102 @@ func (ic InstanceConfig) GetLabels() map[string]string {
 	return map[string]string{}
 }
 
-func (ic InstanceConfig) GetIntervalTimes() int64 {
+func (ic *InternalConfig) InitInternalConfig() error {
+	if len(ic.MetricsDrop) > 0 {
+		var err error
+		ic.MetricsDropFilter, err = filter.Compile(ic.MetricsDrop)
+		if err != nil {
+			return err
+		}
+	}
+
+	if len(ic.MetricsPass) > 0 {
+		var err error
+		ic.MetricsPassFilter, err = filter.Compile(ic.MetricsPass)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (ic *InternalConfig) Process(slist *types.SampleList) *types.SampleList {
+	nlst := types.NewSampleList()
+	if slist.Len() == 0 {
+		return nlst
+	}
+
+	now := time.Now()
+	ss := slist.PopBackAll()
+
+	for i := range ss {
+		if ss[i] == nil {
+			continue
+		}
+
+		// drop metrics
+		if ic.MetricsDropFilter != nil {
+			if ic.MetricsDropFilter.Match(ss[i].Metric) {
+				continue
+			}
+		}
+
+		// pass metrics
+		if ic.MetricsPassFilter != nil {
+			if !ic.MetricsPassFilter.Match(ss[i].Metric) {
+				continue
+			}
+		}
+
+		if ss[i].Timestamp.IsZero() {
+			ss[i].Timestamp = now
+		}
+
+		// add instance labels
+		labels := ic.GetLabels()
+		for k, v := range labels {
+			if v == "-" {
+				delete(ss[i].Labels, k)
+				continue
+			}
+			ss[i].Labels[k] = v
+		}
+
+		// add global labels
+		for k, v := range Config.Global.Labels {
+			if _, has := ss[i].Labels[k]; !has {
+				ss[i].Labels[k] = v
+			}
+		}
+
+		// add label: agent_hostname
+		if _, has := ss[i].Labels[agentHostnameLabelKey]; !has {
+			if !Config.Global.OmitHostname {
+				ss[i].Labels[agentHostnameLabelKey] = Config.GetHostname()
+			}
+		}
+
+		nlst.PushFront(ss[i])
+	}
+
+	return nlst
+}
+
+type PluginConfig struct {
+	InternalConfig
+	Interval Duration `toml:"interval"`
+}
+
+func (pc *PluginConfig) GetInterval() Duration {
+	return pc.Interval
+}
+
+type InstanceConfig struct {
+	InternalConfig
+	IntervalTimes int64 `toml:"interval_times"`
+}
+
+func (ic *InstanceConfig) GetIntervalTimes() int64 {
 	return ic.IntervalTimes
 }

inputs/collector.go

@@ -6,7 +6,6 @@ import (
 
 	"flashcat.cloud/categraf/types"
 	"github.com/prometheus/client_golang/prometheus"
-	"github.com/toolkits/pkg/container/list"
 
 	pp "flashcat.cloud/categraf/parser/prometheus"
 	dto "github.com/prometheus/client_model/go"
@@ -16,7 +15,7 @@ const capMetricChan = 1000
 
 var parser = new(pp.Parser)
 
-func Collect(e prometheus.Collector, slist *list.SafeList, constLabels ...map[string]string) error {
+func Collect(e prometheus.Collector, slist *types.SampleList, constLabels ...map[string]string) error {
 	if e == nil {
 		return errors.New("exporter must not be nil")
 	}
@@ -62,19 +61,15 @@ func Collect(e prometheus.Collector, slist *list.SafeList, constLabels ...map[st
 
 		switch {
 		case dtoMetric.Counter != nil:
-			_ = slist.PushFront(types.NewSample(desc.Name(), *dtoMetric.Counter.Value, labels))
-
+			slist.PushSample("", desc.Name(), *dtoMetric.Counter.Value, labels)
 		case dtoMetric.Gauge != nil:
-			_ = slist.PushFront(types.NewSample(desc.Name(), *dtoMetric.Gauge.Value, labels))
-
+			slist.PushSample("", desc.Name(), *dtoMetric.Gauge.Value, labels)
 		case dtoMetric.Summary != nil:
 			parser.HandleSummary(dtoMetric, nil, desc.Name(), slist)
-
 		case dtoMetric.Histogram != nil:
 			parser.HandleHistogram(dtoMetric, nil, desc.Name(), slist)
-
 		default:
-			_ = slist.PushFront(types.NewSample(desc.Name(), *dtoMetric.Untyped.Value, labels))
+			slist.PushSample("", desc.Name(), *dtoMetric.Untyped.Value, labels)
 		}
 	}
 

inputs/conntrack/conntrack.go

@@ -12,13 +12,11 @@ import (
 
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
-const inputName = "conntrack"
-
 type Conntrack struct {
-	config.Interval
+	config.PluginConfig
 	Dirs  []string `toml:"dirs"`
 	Files []string `toml:"files"`
 	Quiet bool     `toml:"quiet"`
@@ -37,7 +35,7 @@ var dfltFiles = []string{
 }
 
 func init() {
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("conntrack", func() inputs.Input {
 		return &Conntrack{}
 	})
 }
@@ -47,10 +45,6 @@ func (c *Conntrack) GetInstances() []inputs.Instance {
 	return nil
 }
 
-func (c *Conntrack) Prefix() string {
-	return inputName
-}
-
 func (c *Conntrack) setDefaults() {
 	if len(c.Dirs) == 0 {
 		c.Dirs = dfltDirs
@@ -68,7 +62,7 @@ func (c *Conntrack) Init() error {
 
 func (c *Conntrack) Drop() {}
 
-func (c *Conntrack) Gather(slist *list.SafeList) {
+func (c *Conntrack) Gather(slist *types.SampleList) {
 	var metricKey string
 	fields := make(map[string]interface{})
 
@@ -105,5 +99,5 @@ func (c *Conntrack) Gather(slist *list.SafeList) {
 		log.Println("E! Conntrack input failed to collect metrics. Is the conntrack kernel module loaded?")
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples("conntrack", fields)
 }

inputs/cpu/cpu.go

@@ -4,38 +4,35 @@ import (
 	"log"
 
 	cpuUtil "github.com/shirou/gopsutil/v3/cpu"
-	"github.com/toolkits/pkg/container/list"
 
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
+	"flashcat.cloud/categraf/types"
 )
 
-const inputName = "cpu"
-
 type CPUStats struct {
 	ps        system.PS
 	lastStats map[string]cpuUtil.TimesStat
 
-	config.Interval
+	config.PluginConfig
 	CollectPerCPU bool `toml:"collect_per_cpu"`
 }
 
 func init() {
 	ps := system.NewSystemPS()
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("cpu", func() inputs.Input {
 		return &CPUStats{
 			ps: ps,
 		}
 	})
 }
 
-func (c *CPUStats) Prefix() string                  { return inputName }
 func (c *CPUStats) Init() error                     { return nil }
 func (c *CPUStats) Drop()                           {}
 func (c *CPUStats) GetInstances() []inputs.Instance { return nil }
 
-func (c *CPUStats) Gather(slist *list.SafeList) {
+func (c *CPUStats) Gather(slist *types.SampleList) {
 	times, err := c.ps.CPUTimes(c.CollectPerCPU, true)
 	if err != nil {
 		log.Println("E! failed to get cpu metrics:", err)
@@ -75,20 +72,20 @@ func (c *CPUStats) Gather(slist *list.SafeList) {
 		}
 
 		fields := map[string]interface{}{
-			"usage_user":       100 * (cts.User - lastCts.User - (cts.Guest - lastCts.Guest)) / totalDelta,
-			"usage_system":     100 * (cts.System - lastCts.System) / totalDelta,
-			"usage_idle":       100 * (cts.Idle - lastCts.Idle) / totalDelta,
-			"usage_nice":       100 * (cts.Nice - lastCts.Nice - (cts.GuestNice - lastCts.GuestNice)) / totalDelta,
-			"usage_iowait":     100 * (cts.Iowait - lastCts.Iowait) / totalDelta,
-			"usage_irq":        100 * (cts.Irq - lastCts.Irq) / totalDelta,
-			"usage_softirq":    100 * (cts.Softirq - lastCts.Softirq) / totalDelta,
-			"usage_steal":      100 * (cts.Steal - lastCts.Steal) / totalDelta,
-			"usage_guest":      100 * (cts.Guest - lastCts.Guest) / totalDelta,
-			"usage_guest_nice": 100 * (cts.GuestNice - lastCts.GuestNice) / totalDelta,
-			"usage_active":     100 * (active - lastActive) / totalDelta,
+			"user":       100 * (cts.User - lastCts.User - (cts.Guest - lastCts.Guest)) / totalDelta,
+			"system":     100 * (cts.System - lastCts.System) / totalDelta,
+			"idle":       100 * (cts.Idle - lastCts.Idle) / totalDelta,
+			"nice":       100 * (cts.Nice - lastCts.Nice - (cts.GuestNice - lastCts.GuestNice)) / totalDelta,
+			"iowait":     100 * (cts.Iowait - lastCts.Iowait) / totalDelta,
+			"irq":        100 * (cts.Irq - lastCts.Irq) / totalDelta,
+			"softirq":    100 * (cts.Softirq - lastCts.Softirq) / totalDelta,
+			"steal":      100 * (cts.Steal - lastCts.Steal) / totalDelta,
+			"guest":      100 * (cts.Guest - lastCts.Guest) / totalDelta,
+			"guest_nice": 100 * (cts.GuestNice - lastCts.GuestNice) / totalDelta,
+			"active":     100 * (active - lastActive) / totalDelta,
 		}
 
-		inputs.PushSamples(slist, fields, tags)
+		slist.PushSamples("cpu_usage", fields, tags)
 	}
 
 	c.lastStats = make(map[string]cpuUtil.TimesStat)

inputs/disk/disk.go

@@ -8,15 +8,13 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
 	"flashcat.cloud/categraf/pkg/choice"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
-const inputName = "disk"
-
 type DiskStats struct {
 	ps system.PS
 
-	config.Interval
+	config.PluginConfig
 	MountPoints       []string `toml:"mount_points"`
 	IgnoreFS          []string `toml:"ignore_fs"`
 	IgnoreMountPoints []string `toml:"ignore_mount_points"`
@@ -24,7 +22,7 @@ type DiskStats struct {
 
 func init() {
 	ps := system.NewSystemPS()
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("disk", func() inputs.Input {
 		return &DiskStats{
 			ps: ps,
 		}
@@ -36,10 +34,6 @@ func (s *DiskStats) GetInstances() []inputs.Instance {
 	return nil
 }
 
-func (s *DiskStats) Prefix() string {
-	return inputName
-}
-
 func (s *DiskStats) Init() error {
 	return nil
 }
@@ -47,7 +41,7 @@ func (s *DiskStats) Init() error {
 func (s *DiskStats) Drop() {
 }
 
-func (s *DiskStats) Gather(slist *list.SafeList) {
+func (s *DiskStats) Gather(slist *types.SampleList) {
 	disks, partitions, err := s.ps.DiskUsage(s.MountPoints, s.IgnoreFS)
 	if err != nil {
 		log.Println("E! failed to get disk usage:", err)
@@ -89,7 +83,7 @@ func (s *DiskStats) Gather(slist *list.SafeList) {
 			"inodes_used":  du.InodesUsed,
 		}
 
-		inputs.PushSamples(slist, fields, tags)
+		slist.PushSamples("disk", fields, tags)
 	}
 }
 

inputs/diskio/diskio.go

@@ -8,22 +8,20 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
 	"flashcat.cloud/categraf/pkg/filter"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
-const inputName = "diskio"
-
 type DiskIO struct {
 	ps system.PS
 
-	config.Interval
+	config.PluginConfig
 	Devices      []string `toml:"devices"`
 	deviceFilter filter.Filter
 }
 
 func init() {
 	ps := system.NewSystemPS()
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("diskio", func() inputs.Input {
 		return &DiskIO{
 			ps: ps,
 		}
@@ -35,10 +33,6 @@ func (d *DiskIO) GetInstances() []inputs.Instance {
 	return nil
 }
 
-func (d *DiskIO) Prefix() string {
-	return inputName
-}
-
 func (d *DiskIO) Drop() {}
 
 func (d *DiskIO) Init() error {
@@ -54,7 +48,7 @@ func (d *DiskIO) Init() error {
 	return nil
 }
 
-func (d *DiskIO) Gather(slist *list.SafeList) {
+func (d *DiskIO) Gather(slist *types.SampleList) {
 	devices := []string{}
 	if d.deviceFilter == nil {
 		// no glob chars
@@ -86,6 +80,6 @@ func (d *DiskIO) Gather(slist *list.SafeList) {
 			"merged_writes":    io.MergedWriteCount,
 		}
 
-		inputs.PushSamples(slist, fields, map[string]string{"name": io.Name})
+		slist.PushSamples("diskio", fields, map[string]string{"name": io.Name})
 	}
 }

inputs/dns_query/dns_query.go

@@ -12,11 +12,8 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
 	"github.com/miekg/dns"
-	"github.com/toolkits/pkg/container/list"
 )
 
-const inputName = "dns_query"
-
 type ResultType uint64
 
 const (
@@ -26,20 +23,19 @@ const (
 )
 
 type DnsQuery struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
 func init() {
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("dns_query", func() inputs.Input {
 		return &DnsQuery{}
 	})
 }
 
-func (dq *DnsQuery) Prefix() string              { return inputName }
-func (dq *DnsQuery) Init() error                 { return nil }
-func (dq *DnsQuery) Drop()                       {}
-func (dq *DnsQuery) Gather(slist *list.SafeList) {}
+func (dq *DnsQuery) Init() error                    { return nil }
+func (dq *DnsQuery) Drop()                          {}
+func (dq *DnsQuery) Gather(slist *types.SampleList) {}
 
 func (dq *DnsQuery) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(dq.Instances))
@@ -100,7 +96,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	var wg sync.WaitGroup
 
 	for _, domain := range ins.Domains {
@@ -129,7 +125,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 					log.Println("E!", err)
 				}
 
-				inputs.PushSamples(slist, fields, tags, ins.Labels)
+				slist.PushSamples("dns_query", fields, tags)
 				wg.Done()
 			}(domain, server)
 		}

inputs/docker/docker.go

@@ -19,14 +19,11 @@ import (
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/swarm"
-	"github.com/toolkits/pkg/container/list"
 
 	tlsx "flashcat.cloud/categraf/pkg/tls"
 	itypes "flashcat.cloud/categraf/types"
 )
 
-const inputName = "docker"
-
 // KB, MB, GB, TB, PB...human friendly
 const (
 	KB = 1000
@@ -43,20 +40,19 @@ var (
 )
 
 type Docker struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
 func init() {
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("docker", func() inputs.Input {
 		return &Docker{}
 	})
 }
 
-func (d *Docker) Prefix() string              { return "" }
-func (d *Docker) Init() error                 { return nil }
-func (d *Docker) Drop()                       {}
-func (d *Docker) Gather(slist *list.SafeList) {}
+func (d *Docker) Init() error                     { return nil }
+func (d *Docker) Drop()                           {}
+func (d *Docker) Gather(slist *itypes.SampleList) {}
 
 func (d *Docker) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(d.Instances))
@@ -129,7 +125,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *itypes.SampleList) {
 	if ins.Endpoint == "" {
 		return
 	}
@@ -137,7 +133,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	if ins.client == nil {
 		c, err := ins.getNewClient()
 		if err != nil {
-			slist.PushFront(itypes.NewSample("docker_up", 0, ins.Labels))
+			slist.PushSample("docker", "up", 0)
 			log.Println("E! failed to new docker client:", err)
 			return
 		}
@@ -147,12 +143,12 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	defer ins.client.Close()
 
 	if err := ins.gatherInfo(slist); err != nil {
-		slist.PushFront(itypes.NewSample("docker_up", 0, ins.Labels))
+		slist.PushSample("docker", "up", 0)
 		log.Println("E! failed to gather docker info:", err)
 		return
 	}
 
-	slist.PushFront(itypes.NewSample("docker_up", 1, ins.Labels))
+	slist.PushSample("docker", "up", 1)
 
 	if ins.GatherServices {
 		ins.gatherSwarmInfo(slist)
@@ -199,7 +195,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gatherContainer(container types.Container, slist *list.SafeList) {
+func (ins *Instance) gatherContainer(container types.Container, slist *itypes.SampleList) {
 	// Parse container name
 	var cname string
 	for _, name := range container.Names {
@@ -271,7 +267,7 @@ func (ins *Instance) gatherContainer(container types.Container, slist *list.Safe
 	}
 }
 
-func (ins *Instance) gatherContainerInspect(container types.Container, slist *list.SafeList, tags map[string]string, daemonOSType string, v *types.StatsJSON) error {
+func (ins *Instance) gatherContainerInspect(container types.Container, slist *itypes.SampleList, tags map[string]string, daemonOSType string, v *types.StatsJSON) error {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(ins.Timeout))
 	defer cancel()
 
@@ -299,7 +295,7 @@ func (ins *Instance) gatherContainerInspect(container types.Container, slist *li
 	statefields := make(map[string]interface{})
 	finished, err := time.Parse(time.RFC3339, info.State.FinishedAt)
 	if err == nil && !finished.IsZero() {
-		statefields["docker_container_status_finished_at"] = finished.Unix()
+		statefields["status_finished_at"] = finished.Unix()
 	} else {
 		// set finished to now for use in uptime
 		finished = time.Now()
@@ -307,19 +303,19 @@ func (ins *Instance) gatherContainerInspect(container types.Container, slist *li
 
 	started, err := time.Parse(time.RFC3339, info.State.StartedAt)
 	if err == nil && !started.IsZero() {
-		statefields["docker_container_status_started_at"] = started.Unix()
+		statefields["status_started_at"] = started.Unix()
 
 		uptime := finished.Sub(started)
 		if finished.Before(started) {
 			uptime = time.Since(started)
 		}
-		statefields["docker_container_status_uptime"] = uptime.Seconds()
+		statefields["status_uptime"] = uptime.Seconds()
 	}
 
-	inputs.PushSamples(slist, statefields, tags, ins.Labels)
+	slist.PushSamples("docker_container", statefields, tags)
 
 	if info.State.Health != nil {
-		slist.PushFront(itypes.NewSample("docker_container_health_failing_streak", info.ContainerJSONBase.State.Health.FailingStreak, tags, ins.Labels))
+		slist.PushSample("docker_container", "health_failing_streak", info.ContainerJSONBase.State.Health.FailingStreak, tags)
 	}
 
 	ins.parseContainerStats(v, slist, tags, daemonOSType)
@@ -327,7 +323,7 @@ func (ins *Instance) gatherContainerInspect(container types.Container, slist *li
 	return nil
 }
 
-func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *list.SafeList, tags map[string]string, ostype string) {
+func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *itypes.SampleList, tags map[string]string, ostype string) {
 	// memory
 
 	basicMemstats := []string{
@@ -369,62 +365,62 @@ func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *list.Safe
 
 	for _, field := range basicMemstats {
 		if value, ok := stat.MemoryStats.Stats[field]; ok {
-			memfields["docker_container_mem_"+field] = value
+			memfields[field] = value
 		}
 	}
 
 	if ins.GatherExtendMemstats {
 		for _, field := range extendMemstats {
 			if value, ok := stat.MemoryStats.Stats[field]; ok {
-				memfields["docker_container_mem_"+field] = value
+				memfields[field] = value
 			}
 		}
 	}
 
 	if stat.MemoryStats.Failcnt != 0 {
-		memfields["docker_container_mem_fail_count"] = stat.MemoryStats.Failcnt
+		memfields["fail_count"] = stat.MemoryStats.Failcnt
 	}
 
 	if ostype != "windows" {
-		memfields["docker_container_mem_limit"] = stat.MemoryStats.Limit
-		memfields["docker_container_mem_max_usage"] = stat.MemoryStats.MaxUsage
+		memfields["limit"] = stat.MemoryStats.Limit
+		memfields["max_usage"] = stat.MemoryStats.MaxUsage
 
 		mem := CalculateMemUsageUnixNoCache(stat.MemoryStats)
 		memLimit := float64(stat.MemoryStats.Limit)
-		memfields["docker_container_mem_usage"] = uint64(mem)
-		memfields["docker_container_mem_usage_percent"] = CalculateMemPercentUnixNoCache(memLimit, mem)
+		memfields["usage"] = uint64(mem)
+		memfields["usage_percent"] = CalculateMemPercentUnixNoCache(memLimit, mem)
 	} else {
-		memfields["docker_container_mem_commit_bytes"] = stat.MemoryStats.Commit
-		memfields["docker_container_mem_commit_peak_bytes"] = stat.MemoryStats.CommitPeak
-		memfields["docker_container_mem_private_working_set"] = stat.MemoryStats.PrivateWorkingSet
+		memfields["commit_bytes"] = stat.MemoryStats.Commit
+		memfields["commit_peak_bytes"] = stat.MemoryStats.CommitPeak
+		memfields["private_working_set"] = stat.MemoryStats.PrivateWorkingSet
 	}
 
-	inputs.PushSamples(slist, memfields, tags, ins.Labels)
+	slist.PushSamples("docker_container_mem", memfields, tags)
 
 	// cpu
 
 	if choice.Contains("cpu", ins.TotalInclude) {
 		cpufields := map[string]interface{}{
-			"docker_container_cpu_usage_total":                  stat.CPUStats.CPUUsage.TotalUsage,
-			"docker_container_cpu_usage_in_usermode":            stat.CPUStats.CPUUsage.UsageInUsermode,
-			"docker_container_cpu_usage_in_kernelmode":          stat.CPUStats.CPUUsage.UsageInKernelmode,
-			"docker_container_cpu_usage_system":                 stat.CPUStats.SystemUsage,
-			"docker_container_cpu_throttling_periods":           stat.CPUStats.ThrottlingData.Periods,
-			"docker_container_cpu_throttling_throttled_periods": stat.CPUStats.ThrottlingData.ThrottledPeriods,
-			"docker_container_cpu_throttling_throttled_time":    stat.CPUStats.ThrottlingData.ThrottledTime,
+			"usage_total":                  stat.CPUStats.CPUUsage.TotalUsage,
+			"usage_in_usermode":            stat.CPUStats.CPUUsage.UsageInUsermode,
+			"usage_in_kernelmode":          stat.CPUStats.CPUUsage.UsageInKernelmode,
+			"usage_system":                 stat.CPUStats.SystemUsage,
+			"throttling_periods":           stat.CPUStats.ThrottlingData.Periods,
+			"throttling_throttled_periods": stat.CPUStats.ThrottlingData.ThrottledPeriods,
+			"throttling_throttled_time":    stat.CPUStats.ThrottlingData.ThrottledTime,
 		}
 
 		if ostype != "windows" {
 			previousCPU := stat.PreCPUStats.CPUUsage.TotalUsage
 			previousSystem := stat.PreCPUStats.SystemUsage
 			cpuPercent := CalculateCPUPercentUnix(previousCPU, previousSystem, stat)
-			cpufields["docker_container_cpu_usage_percent"] = cpuPercent
+			cpufields["usage_percent"] = cpuPercent
 		} else {
 			cpuPercent := calculateCPUPercentWindows(stat)
-			cpufields["docker_container_cpu_usage_percent"] = cpuPercent
+			cpufields["usage_percent"] = cpuPercent
 		}
 
-		inputs.PushSamples(slist, cpufields, map[string]string{"cpu": "cpu-total"}, tags, ins.Labels)
+		slist.PushSamples("docker_container_cpu", cpufields, map[string]string{"cpu": "cpu-total"}, tags)
 	}
 
 	if choice.Contains("cpu", ins.PerDeviceInclude) && len(stat.CPUStats.CPUUsage.PercpuUsage) > 0 {
@@ -436,13 +432,7 @@ func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *list.Safe
 		}
 
 		for i, percpu := range percpuusage {
-			slist.PushFront(itypes.NewSample(
-				"docker_container_cpu_usage_total",
-				percpu,
-				map[string]string{"cpu": fmt.Sprintf("cpu%d", i)},
-				tags,
-				ins.Labels,
-			))
+			slist.PushSample("", "docker_container_cpu_usage_total", percpu, map[string]string{"cpu": fmt.Sprintf("cpu%d", i)}, tags)
 		}
 	}
 
@@ -451,18 +441,18 @@ func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *list.Safe
 	totalNetworkStatMap := make(map[string]interface{})
 	for network, netstats := range stat.Networks {
 		netfields := map[string]interface{}{
-			"docker_container_net_rx_dropped": netstats.RxDropped,
-			"docker_container_net_rx_bytes":   netstats.RxBytes,
-			"docker_container_net_rx_errors":  netstats.RxErrors,
-			"docker_container_net_tx_packets": netstats.TxPackets,
-			"docker_container_net_tx_dropped": netstats.TxDropped,
-			"docker_container_net_rx_packets": netstats.RxPackets,
-			"docker_container_net_tx_errors":  netstats.TxErrors,
-			"docker_container_net_tx_bytes":   netstats.TxBytes,
+			"rx_dropped": netstats.RxDropped,
+			"rx_bytes":   netstats.RxBytes,
+			"rx_errors":  netstats.RxErrors,
+			"tx_packets": netstats.TxPackets,
+			"tx_dropped": netstats.TxDropped,
+			"rx_packets": netstats.RxPackets,
+			"tx_errors":  netstats.TxErrors,
+			"tx_bytes":   netstats.TxBytes,
 		}
 
 		if choice.Contains("network", ins.PerDeviceInclude) {
-			inputs.PushSamples(slist, netfields, map[string]string{"network": network}, tags, ins.Labels)
+			slist.PushSamples("docker_container_net", netfields, map[string]string{"network": network}, tags)
 		}
 
 		if choice.Contains("network", ins.TotalInclude) {
@@ -489,13 +479,13 @@ func (ins *Instance) parseContainerStats(stat *types.StatsJSON, slist *list.Safe
 
 	// totalNetworkStatMap could be empty if container is running with --net=host.
 	if choice.Contains("network", ins.TotalInclude) && len(totalNetworkStatMap) != 0 {
-		inputs.PushSamples(slist, totalNetworkStatMap, map[string]string{"network": "total"}, tags, ins.Labels)
+		slist.PushSamples("docker_container_net", totalNetworkStatMap, map[string]string{"network": "total"}, tags)
 	}
 
 	ins.gatherBlockIOMetrics(slist, stat, tags)
 }
 
-func (ins *Instance) gatherBlockIOMetrics(slist *list.SafeList, stat *types.StatsJSON, tags map[string]string) {
+func (ins *Instance) gatherBlockIOMetrics(slist *itypes.SampleList, stat *types.StatsJSON, tags map[string]string) {
 	perDeviceBlkio := choice.Contains("blkio", ins.PerDeviceInclude)
 	totalBlkio := choice.Contains("blkio", ins.TotalInclude)
 
@@ -505,7 +495,7 @@ func (ins *Instance) gatherBlockIOMetrics(slist *list.SafeList, stat *types.Stat
 	totalStatMap := make(map[string]interface{})
 	for device, fields := range deviceStatMap {
 		if perDeviceBlkio {
-			inputs.PushSamples(slist, fields, map[string]string{"device": device}, tags, ins.Labels)
+			slist.PushSamples("", fields, map[string]string{"device": device}, tags)
 		}
 		if totalBlkio {
 			for field, value := range fields {
@@ -530,7 +520,7 @@ func (ins *Instance) gatherBlockIOMetrics(slist *list.SafeList, stat *types.Stat
 	}
 
 	if totalBlkio {
-		inputs.PushSamples(slist, totalStatMap, map[string]string{"device": "total"}, tags, ins.Labels)
+		slist.PushSamples("", totalStatMap, map[string]string{"device": "total"}, tags)
 	}
 }
 
@@ -595,7 +585,7 @@ func getDeviceStatMap(blkioStats types.BlkioStats) map[string]map[string]interfa
 	return deviceStatMap
 }
 
-func (ins *Instance) gatherSwarmInfo(slist *list.SafeList) {
+func (ins *Instance) gatherSwarmInfo(slist *itypes.SampleList) {
 	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(ins.Timeout))
 	defer cancel()
 
@@ -651,21 +641,21 @@ func (ins *Instance) gatherSwarmInfo(slist *list.SafeList) {
 		tags["service_name"] = service.Spec.Name
 		if service.Spec.Mode.Replicated != nil && service.Spec.Mode.Replicated.Replicas != nil {
 			tags["service_mode"] = "replicated"
-			fields["docker_swarm_tasks_running"] = running[service.ID]
-			fields["docker_swarm_tasks_desired"] = *service.Spec.Mode.Replicated.Replicas
+			fields["tasks_running"] = running[service.ID]
+			fields["tasks_desired"] = *service.Spec.Mode.Replicated.Replicas
 		} else if service.Spec.Mode.Global != nil {
 			tags["service_mode"] = "global"
-			fields["docker_swarm_tasks_running"] = running[service.ID]
-			fields["docker_swarm_tasks_desired"] = tasksNoShutdown[service.ID]
+			fields["tasks_running"] = running[service.ID]
+			fields["tasks_desired"] = tasksNoShutdown[service.ID]
 		} else {
 			log.Println("E! Unknown replica mode")
 		}
 
-		inputs.PushSamples(slist, fields, tags, ins.Labels)
+		slist.PushSamples("docker_swarm", fields, tags)
 	}
 }
 
-func (ins *Instance) gatherInfo(slist *list.SafeList) error {
+func (ins *Instance) gatherInfo(slist *itypes.SampleList) error {
 	// Get info from docker daemon
 	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(ins.Timeout))
 	defer cancel()
@@ -689,7 +679,7 @@ func (ins *Instance) gatherInfo(slist *list.SafeList) error {
 		"docker_memory_total":            info.MemTotal,
 	}
 
-	inputs.PushSamples(slist, fields, ins.Labels)
+	slist.PushSamples("", fields)
 	return nil
 }
 

inputs/elasticsearch/elasticsearch.go

@@ -17,11 +17,8 @@ import (
 	"flashcat.cloud/categraf/pkg/jsonx"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-const inputName = "elasticsearch"
-
 // Nodestats are always generated, so simply define a constant for these endpoints
 const statsPath = "/_nodes/stats"
 const statsPathLocal = "/_nodes/_local/stats"
@@ -87,20 +84,19 @@ type indexStat struct {
 }
 
 type Elasticsearch struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
 func init() {
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("elasticsearch", func() inputs.Input {
 		return &Elasticsearch{}
 	})
 }
 
-func (r *Elasticsearch) Prefix() string              { return inputName }
-func (r *Elasticsearch) Init() error                 { return nil }
-func (r *Elasticsearch) Drop()                       {}
-func (r *Elasticsearch) Gather(slist *list.SafeList) {}
+func (r *Elasticsearch) Init() error                    { return nil }
+func (r *Elasticsearch) Drop()                          {}
+func (r *Elasticsearch) Gather(slist *types.SampleList) {}
 
 func (r *Elasticsearch) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -183,14 +179,14 @@ func (ins *Instance) compileIndexMatchers() (map[string]filter.Filter, error) {
 	return indexMatchers, nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if ins.ClusterStats || len(ins.IndicesInclude) > 0 || len(ins.IndicesLevel) > 0 {
 		var wgC sync.WaitGroup
 		wgC.Add(len(ins.Servers))
 
 		ins.serverInfo = make(map[string]serverInfo)
 		for _, serv := range ins.Servers {
-			go func(s string, slist *list.SafeList) {
+			go func(s string, slist *types.SampleList) {
 				defer wgC.Done()
 				info := serverInfo{}
 
@@ -198,7 +194,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 
 				// Gather node ID
 				if info.nodeID, err = ins.gatherNodeID(s + "/_nodes/_local/name"); err != nil {
-					slist.PushFront(types.NewSample("up", 0, map[string]string{"address": s}, ins.Labels))
+					slist.PushSample("elasticsearch", "up", 0, map[string]string{"address": s})
 					log.Println("E! failed to gather node id:", err)
 					return
 				}
@@ -206,12 +202,12 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 				// get cat/master information here so NodeStats can determine
 				// whether this node is the Master
 				if info.masterID, err = ins.getCatMaster(s + "/_cat/master"); err != nil {
-					slist.PushFront(types.NewSample("up", 0, map[string]string{"address": s}, ins.Labels))
+					slist.PushSample("elasticsearch", "up", 0, map[string]string{"address": s})
 					log.Println("E! failed to get cat master:", err)
 					return
 				}
 
-				slist.PushFront(types.NewSample("up", 1, map[string]string{"address": s}, ins.Labels))
+				slist.PushSample("elasticsearch", "up", 1, map[string]string{"address": s})
 				ins.serverInfoMutex.Lock()
 				ins.serverInfo[s] = info
 				ins.serverInfoMutex.Unlock()
@@ -224,7 +220,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Add(len(ins.Servers))
 
 	for _, serv := range ins.Servers {
-		go func(s string, slist *list.SafeList) {
+		go func(s string, slist *types.SampleList) {
 			defer wg.Done()
 			url := ins.nodeStatsURL(s)
 
@@ -271,7 +267,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gatherIndicesStats(url string, address string, slist *list.SafeList) error {
+func (ins *Instance) gatherIndicesStats(url string, address string, slist *types.SampleList) error {
 	indicesStats := &struct {
 		Shards  map[string]interface{} `json:"_shards"`
 		All     map[string]interface{} `json:"_all"`
@@ -285,9 +281,7 @@ func (ins *Instance) gatherIndicesStats(url string, address string, slist *list.
 	addrTag := map[string]string{"address": address}
 
 	// Total Shards Stats
-	for k, v := range indicesStats.Shards {
-		slist.PushFront(types.NewSample("indices_stats_shards_total_"+k, v, addrTag, ins.Labels))
-	}
+	slist.PushSamples("elasticsearch_indices_stats_shards_total", indicesStats.Shards, addrTag)
 
 	// All Stats
 	for m, s := range indicesStats.All {
@@ -298,7 +292,7 @@ func (ins *Instance) gatherIndicesStats(url string, address string, slist *list.
 			return err
 		}
 		for key, val := range jsonParser.Fields {
-			slist.PushFront(types.NewSample("indices_stats_"+m+"_"+key, val, map[string]string{"index_name": "_all"}, addrTag, ins.Labels))
+			slist.PushSample("elasticsearch", "indices_stats_"+m+"_"+key, val, map[string]string{"index_name": "_all"}, addrTag)
 		}
 	}
 
@@ -307,7 +301,7 @@ func (ins *Instance) gatherIndicesStats(url string, address string, slist *list.
 }
 
 // gatherSortedIndicesStats gathers stats for all indices in no particular order.
-func (ins *Instance) gatherIndividualIndicesStats(indices map[string]indexStat, addrTag map[string]string, slist *list.SafeList) error {
+func (ins *Instance) gatherIndividualIndicesStats(indices map[string]indexStat, addrTag map[string]string, slist *types.SampleList) error {
 	// Sort indices into buckets based on their configured prefix, if any matches.
 	categorizedIndexNames := ins.categorizeIndices(indices)
 	for _, matchingIndices := range categorizedIndexNames {
@@ -337,7 +331,7 @@ func (ins *Instance) gatherIndividualIndicesStats(indices map[string]indexStat,
 	return nil
 }
 
-func (ins *Instance) gatherSingleIndexStats(name string, index indexStat, addrTag map[string]string, slist *list.SafeList) error {
+func (ins *Instance) gatherSingleIndexStats(name string, index indexStat, addrTag map[string]string, slist *types.SampleList) error {
 	indexTag := map[string]string{"index_name": name}
 	stats := map[string]interface{}{
 		"primaries": index.Primaries,
@@ -351,7 +345,7 @@ func (ins *Instance) gatherSingleIndexStats(name string, index indexStat, addrTa
 			return err
 		}
 		for key, val := range f.Fields {
-			slist.PushFront(types.NewSample("indices_stats_"+m+"_"+key, val, indexTag, addrTag, ins.Labels))
+			slist.PushSample("elasticsearch", "indices_stats_"+m+"_"+key, val, indexTag, addrTag)
 		}
 	}
 
@@ -393,9 +387,7 @@ func (ins *Instance) gatherSingleIndexStats(name string, index indexStat, addrTa
 					}
 				}
 
-				for key, val := range flattened.Fields {
-					slist.PushFront(types.NewSample("indices_stats_shards_"+key, val, shardTags, addrTag, ins.Labels))
-				}
+				slist.PushSamples("elasticsearch_indices_stats_shards", flattened.Fields, shardTags, addrTag)
 			}
 		}
 	}
@@ -433,7 +425,7 @@ func (ins *Instance) categorizeIndices(indices map[string]indexStat) map[string]
 	return categorizedIndexNames
 }
 
-func (ins *Instance) gatherClusterStats(url string, address string, slist *list.SafeList) error {
+func (ins *Instance) gatherClusterStats(url string, address string, slist *types.SampleList) error {
 	clusterStats := &clusterStats{}
 	if err := ins.gatherJSONData(url, clusterStats); err != nil {
 		return err
@@ -460,14 +452,14 @@ func (ins *Instance) gatherClusterStats(url string, address string, slist *list.
 		}
 
 		for key, val := range f.Fields {
-			slist.PushFront(types.NewSample("clusterstats_"+p+"_"+key, val, tags, ins.Labels))
+			slist.PushSample("elasticsearch", "clusterstats_"+p+"_"+key, val, tags)
 		}
 	}
 
 	return nil
 }
 
-func (ins *Instance) gatherClusterHealth(url string, address string, slist *list.SafeList) error {
+func (ins *Instance) gatherClusterHealth(url string, address string, slist *types.SampleList) error {
 	healthStats := &clusterHealth{}
 	if err := ins.gatherJSONData(url, healthStats); err != nil {
 		return err
@@ -492,7 +484,7 @@ func (ins *Instance) gatherClusterHealth(url string, address string, slist *list
 		"cluster_health_unassigned_shards":                healthStats.UnassignedShards,
 	}
 
-	inputs.PushSamples(slist, clusterFields, map[string]string{"cluster_name": healthStats.ClusterName}, addrTag, ins.Labels)
+	slist.PushSamples("elasticsearch", clusterFields, map[string]string{"cluster_name": healthStats.ClusterName}, addrTag)
 
 	for name, health := range healthStats.Indices {
 		indexFields := map[string]interface{}{
@@ -505,13 +497,13 @@ func (ins *Instance) gatherClusterHealth(url string, address string, slist *list
 			"cluster_health_indices_status_code":           mapHealthStatusToCode(health.Status),
 			"cluster_health_indices_unassigned_shards":     health.UnassignedShards,
 		}
-		inputs.PushSamples(slist, indexFields, map[string]string{"index": name, "name": healthStats.ClusterName}, addrTag, ins.Labels)
+		slist.PushSamples("elasticsearch", indexFields, map[string]string{"index": name, "name": healthStats.ClusterName}, addrTag)
 	}
 
 	return nil
 }
 
-func (ins *Instance) gatherNodeStats(url string, address string, slist *list.SafeList) error {
+func (ins *Instance) gatherNodeStats(url string, address string, slist *types.SampleList) error {
 	nodeStats := &struct {
 		ClusterName string               `json:"cluster_name"`
 		Nodes       map[string]*nodeStat `json:"nodes"`
@@ -534,7 +526,7 @@ func (ins *Instance) gatherNodeStats(url string, address string, slist *list.Saf
 		}
 
 		for k, v := range n.Attributes {
-			slist.PushFront(types.NewSample("node_attribute_"+k, v, tags, addrTag, ins.Labels))
+			slist.PushSample("elasticsearch", "node_attribute_"+k, v, tags, addrTag)
 		}
 
 		stats := map[string]interface{}{
@@ -563,7 +555,7 @@ func (ins *Instance) gatherNodeStats(url string, address string, slist *list.Saf
 			}
 
 			for key, val := range f.Fields {
-				slist.PushFront(types.NewSample(p+"_"+key, val, tags, addrTag, ins.Labels))
+				slist.PushSample("elasticsearch", p+"_"+key, val, tags, addrTag)
 			}
 		}
 	}

inputs/exec/exec.go

@@ -21,10 +21,8 @@ import (
 	"flashcat.cloud/categraf/pkg/cmdx"
 	"flashcat.cloud/categraf/types"
 	"github.com/kballard/go-shellquote"
-	"github.com/toolkits/pkg/container/list"
 )
 
-const inputName = "exec"
 const MaxStderrBytes int = 512
 
 type Instance struct {
@@ -37,20 +35,19 @@ type Instance struct {
 }
 
 type Exec struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
 func init() {
-	inputs.Add(inputName, func() inputs.Input {
+	inputs.Add("exec", func() inputs.Input {
 		return &Exec{}
 	})
 }
 
-func (e *Exec) Prefix() string              { return "" }
-func (e *Exec) Init() error                 { return nil }
-func (e *Exec) Drop()                       {}
-func (e *Exec) Gather(slist *list.SafeList) {}
+func (e *Exec) Init() error                    { return nil }
+func (e *Exec) Drop()                          {}
+func (e *Exec) Gather(slist *types.SampleList) {}
 
 func (e *Exec) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(e.Instances))
@@ -82,7 +79,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	var commands []string
 	for _, pattern := range ins.Commands {
 		cmdAndArgs := strings.SplitN(pattern, " ", 2)
@@ -128,7 +125,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	waitCommands.Wait()
 }
 
-func (ins *Instance) ProcessCommand(slist *list.SafeList, command string, wg *sync.WaitGroup) {
+func (ins *Instance) ProcessCommand(slist *types.SampleList, command string, wg *sync.WaitGroup) {
 	defer wg.Done()
 
 	out, errbuf, runErr := commandRun(command, time.Duration(ins.Timeout))

inputs/http_response/http_response.go

@@ -17,7 +17,6 @@ import (
 	"flashcat.cloud/categraf/pkg/netx"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const (
@@ -136,7 +135,7 @@ func (ins *Instance) createHTTPClient() (*http.Client, error) {
 }
 
 type HTTPResponse struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -146,10 +145,9 @@ func init() {
 	})
 }
 
-func (h *HTTPResponse) Prefix() string              { return inputName }
-func (h *HTTPResponse) Init() error                 { return nil }
-func (h *HTTPResponse) Drop()                       {}
-func (h *HTTPResponse) Gather(slist *list.SafeList) {}
+func (h *HTTPResponse) Init() error                    { return nil }
+func (h *HTTPResponse) Drop()                          {}
+func (h *HTTPResponse) Gather(slist *types.SampleList) {}
 
 func (h *HTTPResponse) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(h.Instances))
@@ -159,7 +157,7 @@ func (h *HTTPResponse) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if len(ins.Targets) == 0 {
 		return
 	}
@@ -175,22 +173,16 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gather(slist *list.SafeList, target string) {
+func (ins *Instance) gather(slist *types.SampleList, target string) {
 	if config.Config.DebugMode {
 		log.Println("D! http_response... target:", target)
 	}
 
 	labels := map[string]string{"target": target}
-	for k, v := range ins.Labels {
-		labels[k] = v
-	}
-
 	fields := map[string]interface{}{}
 
 	defer func() {
-		for field, value := range fields {
-			slist.PushFront(types.NewSample(field, value, labels))
-		}
+		slist.PushSamples(inputName, fields, labels)
 	}()
 
 	var returnTags map[string]string

inputs/inputs.go

@@ -2,15 +2,18 @@ package inputs
 
 import (
 	"flashcat.cloud/categraf/config"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 type Input interface {
+	GetLabels() map[string]string
+	GetInterval() config.Duration
+	InitInternalConfig() error
+	Process(*types.SampleList) *types.SampleList
+
 	Init() error
 	Drop()
-	Prefix() string
-	GetInterval() config.Duration
-	Gather(slist *list.SafeList)
+	Gather(*types.SampleList)
 	GetInstances() []Instance
 }
 
@@ -25,6 +28,9 @@ func Add(name string, creator Creator) {
 type Instance interface {
 	GetLabels() map[string]string
 	GetIntervalTimes() int64
+	InitInternalConfig() error
+	Process(*types.SampleList) *types.SampleList
+
 	Init() error
-	Gather(slist *list.SafeList)
+	Gather(*types.SampleList)
 }

inputs/jolokia/gatherer.go

@@ -6,8 +6,7 @@ import (
 	"sort"
 	"strings"
 
-	"flashcat.cloud/categraf/inputs"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const defaultFieldName = "value"
@@ -26,7 +25,7 @@ func NewGatherer(metrics []Metric) *Gatherer {
 
 // Gather adds points to an accumulator from responses returned
 // by a Jolokia agent.
-func (g *Gatherer) Gather(client *Client, slist *list.SafeList) error {
+func (g *Gatherer) Gather(client *Client, slist *types.SampleList) error {
 	var tags map[string]string
 
 	if client.config.ProxyConfig != nil {
@@ -47,7 +46,7 @@ func (g *Gatherer) Gather(client *Client, slist *list.SafeList) error {
 
 // gatherResponses adds points to an accumulator from the ReadResponse objects
 // returned by a Jolokia agent.
-func (g *Gatherer) gatherResponses(responses []ReadResponse, tags map[string]string, slist *list.SafeList) {
+func (g *Gatherer) gatherResponses(responses []ReadResponse, tags map[string]string, slist *types.SampleList) {
 	series := make(map[string][]point)
 
 	for _, metric := range g.metrics {
@@ -67,7 +66,7 @@ func (g *Gatherer) gatherResponses(responses []ReadResponse, tags map[string]str
 
 	for measurement, points := range series {
 		for _, point := range compactPoints(points) {
-			inputs.PushMeasurements(slist, measurement, point.Fields, mergeTags(point.Tags, tags))
+			slist.PushSamples(measurement, point.Fields, mergeTags(point.Tags, tags))
 		}
 	}
 }

inputs/jolokia_agent/jolokia_agent.go

@@ -11,13 +11,12 @@ import (
 	"flashcat.cloud/categraf/inputs/jolokia"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "jolokia_agent"
 
 type JolokiaAgent struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -27,10 +26,9 @@ func init() {
 	})
 }
 
-func (r *JolokiaAgent) Prefix() string              { return "" }
-func (r *JolokiaAgent) Init() error                 { return nil }
-func (r *JolokiaAgent) Drop()                       {}
-func (r *JolokiaAgent) Gather(slist *list.SafeList) {}
+func (r *JolokiaAgent) Init() error                    { return nil }
+func (r *JolokiaAgent) Drop()                          {}
+func (r *JolokiaAgent) Gather(slist *types.SampleList) {}
 
 func (r *JolokiaAgent) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -70,7 +68,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if ins.gatherer == nil {
 		ins.gatherer = jolokia.NewGatherer(ins.createMetrics())
 	}

inputs/jolokia_proxy/jolokia_proxy.go

@@ -10,13 +10,12 @@ import (
 	"flashcat.cloud/categraf/inputs/jolokia"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "jolokia_proxy"
 
 type JolokiaProxy struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -26,10 +25,9 @@ func init() {
 	})
 }
 
-func (r *JolokiaProxy) Prefix() string              { return "" }
-func (r *JolokiaProxy) Init() error                 { return nil }
-func (r *JolokiaProxy) Drop()                       {}
-func (r *JolokiaProxy) Gather(slist *list.SafeList) {}
+func (r *JolokiaProxy) Init() error                    { return nil }
+func (r *JolokiaProxy) Drop()                          {}
+func (r *JolokiaProxy) Gather(slist *types.SampleList) {}
 
 func (r *JolokiaProxy) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -79,7 +77,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if ins.gatherer == nil {
 		ins.gatherer = jolokia.NewGatherer(ins.createMetrics())
 	}

inputs/kafka/kafka.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"strings"
 
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
@@ -12,7 +11,6 @@ import (
 	"flashcat.cloud/categraf/types"
 	"github.com/Shopify/sarama"
 	"github.com/go-kit/log/level"
-	"github.com/toolkits/pkg/container/list"
 
 	klog "github.com/go-kit/log"
 )
@@ -20,7 +18,7 @@ import (
 const inputName = "kafka"
 
 type Kafka struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -30,9 +28,8 @@ func init() {
 	})
 }
 
-func (r *Kafka) Prefix() string              { return "" }
-func (r *Kafka) Init() error                 { return nil }
-func (r *Kafka) Gather(slist *list.SafeList) {}
+func (r *Kafka) Init() error                    { return nil }
+func (r *Kafka) Gather(slist *types.SampleList) {}
 
 func (r *Kafka) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -165,13 +162,6 @@ func (ins *Instance) Init() error {
 	if len(ins.GroupFilter) == 0 {
 		ins.GroupFilter = ".*"
 	}
-	if ins.Labels == nil {
-		ins.Labels = make(map[string]string)
-	}
-	_, ok := ins.Labels["cluster"]
-	if !ok {
-		ins.Labels["cluster"] = ins.KafkaURIs[0]
-	}
 
 	options := exporter.Options{
 		Uri:                      ins.KafkaURIs,
@@ -194,13 +184,6 @@ func (ins *Instance) Init() error {
 		PruneIntervalSeconds:     ins.PruneIntervalSeconds,
 	}
 
-	encLabels := []string{}
-	for k, v := range ins.Labels {
-		encLabels = append(encLabels, fmt.Sprintf("%s=%s", k, v))
-	}
-
-	options.Labels = strings.Join(encLabels, ",")
-
 	ins.l = level.NewFilter(klog.NewLogfmtLogger(klog.NewSyncWriter(os.Stderr)), levelFilter(ins.LogLevel))
 
 	e, err := exporter.New(ins.l, options, ins.TopicsFilter, ins.GroupFilter)
@@ -212,7 +195,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	err := inputs.Collect(ins.e, slist)
 	if err != nil {
 		log.Println("E! failed to collect metrics:", err)

inputs/kernel/kernel.go

@@ -28,7 +28,7 @@ var (
 )
 
 type KernelStats struct {
-	config.Interval
+	config.PluginConfig
 
 	statFile        string
 	entropyStatFile string
@@ -43,12 +43,11 @@ func init() {
 	})
 }
 
-func (s *KernelStats) Prefix() string                  { return inputName }
 func (s *KernelStats) Init() error                     { return nil }
 func (s *KernelStats) Drop()                           {}
 func (s *KernelStats) GetInstances() []inputs.Instance { return nil }
 
-func (s *KernelStats) Gather(slist *list.SafeList) {
+func (s *KernelStats) Gather(slist *types.SampleList) {
 	data, err := s.getProcStat()
 	if err != nil {
 		log.Println("E! failed to read:", s.statFile, "error:", err)
@@ -112,7 +111,7 @@ func (s *KernelStats) Gather(slist *list.SafeList) {
 		}
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }
 
 func (s *KernelStats) getProcStat() ([]byte, error) {

inputs/kernel_vmstat/kernel_vmstat.go

@@ -18,7 +18,7 @@ import (
 const inputName = "kernel_vmstat"
 
 type KernelVmstat struct {
-	config.Interval
+	config.PluginConfig
 	WhiteList map[string]int `toml:"white_list"`
 
 	statFile string
@@ -32,12 +32,11 @@ func init() {
 	})
 }
 
-func (s *KernelVmstat) Prefix() string                  { return inputName }
 func (s *KernelVmstat) Init() error                     { return nil }
 func (s *KernelVmstat) Drop()                           {}
 func (s *KernelVmstat) GetInstances() []inputs.Instance { return nil }
 
-func (s *KernelVmstat) Gather(slist *list.SafeList) {
+func (s *KernelVmstat) Gather(slist *types.SampleList) {
 	data, err := s.getProcVmstat()
 	if err != nil {
 		log.Println("E! failed to gather vmstat:", err)
@@ -68,7 +67,7 @@ func (s *KernelVmstat) Gather(slist *list.SafeList) {
 		}
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }
 
 func (s *KernelVmstat) getProcVmstat() ([]byte, error) {

inputs/kubernetes/kubernetes.go

@@ -14,7 +14,6 @@ import (
 	"flashcat.cloud/categraf/pkg/filter"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const (
@@ -23,7 +22,7 @@ const (
 )
 
 type Kubernetes struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -33,10 +32,9 @@ func init() {
 	})
 }
 
-func (k *Kubernetes) Prefix() string              { return inputName }
-func (k *Kubernetes) Init() error                 { return nil }
-func (k *Kubernetes) Drop()                       {}
-func (k *Kubernetes) Gather(slist *list.SafeList) {}
+func (k *Kubernetes) Init() error                    { return nil }
+func (k *Kubernetes) Drop()                          {}
+func (k *Kubernetes) Gather(slist *types.SampleList) {}
 
 func (k *Kubernetes) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(k.Instances))
@@ -103,17 +101,17 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	summaryMetrics := &SummaryMetrics{}
 	urlpath := fmt.Sprintf("%s/stats/summary", ins.URL)
 	err := ins.LoadJSON(urlpath, summaryMetrics)
 	if err != nil {
 		log.Println("E! failed to load", urlpath, "error:", err)
-		slist.PushFront(types.NewSample("kubelet_up", 0, ins.Labels))
+		slist.PushSample(inputName, "kubelet_up", 0)
 		return
 	}
 
-	slist.PushFront(types.NewSample("kubelet_up", 1, ins.Labels))
+	slist.PushSample(inputName, "kubelet_up", 1)
 
 	podInfos, err := ins.gatherPodInfo(ins.URL)
 	if err != nil {
@@ -132,7 +130,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	ins.buildPodMetrics(summaryMetrics, podInfos, ins.labelFilter, slist)
 }
 
-func (ins *Instance) buildPodMetrics(summaryMetrics *SummaryMetrics, podInfo []Metadata, labelFilter filter.Filter, slist *list.SafeList) {
+func (ins *Instance) buildPodMetrics(summaryMetrics *SummaryMetrics, podInfo []Metadata, labelFilter filter.Filter, slist *types.SampleList) {
 	for _, pod := range summaryMetrics.Pods {
 		podLabels := make(map[string]string)
 		for _, info := range podInfo {
@@ -170,7 +168,7 @@ func (ins *Instance) buildPodMetrics(summaryMetrics *SummaryMetrics, podInfo []M
 				fields["pod_container_logsfs_available_bytes"] = container.LogsFS.AvailableBytes
 				fields["pod_container_logsfs_capacity_bytes"] = container.LogsFS.CapacityBytes
 				fields["pod_container_logsfs_used_bytes"] = container.LogsFS.UsedBytes
-				inputs.PushSamples(slist, fields, tags, ins.Labels)
+				slist.PushSamples(inputName, fields, tags)
 			}
 		}
 
@@ -189,7 +187,7 @@ func (ins *Instance) buildPodMetrics(summaryMetrics *SummaryMetrics, podInfo []M
 				fields["pod_volume_available_bytes"] = volume.AvailableBytes
 				fields["pod_volume_capacity_bytes"] = volume.CapacityBytes
 				fields["pod_volume_used_bytes"] = volume.UsedBytes
-				inputs.PushSamples(slist, fields, tags, ins.Labels)
+				slist.PushSamples(inputName, fields, tags)
 			}
 		}
 
@@ -207,12 +205,12 @@ func (ins *Instance) buildPodMetrics(summaryMetrics *SummaryMetrics, podInfo []M
 			fields["pod_network_rx_errors"] = pod.Network.RXErrors
 			fields["pod_network_tx_bytes"] = pod.Network.TXBytes
 			fields["pod_network_tx_errors"] = pod.Network.TXErrors
-			inputs.PushSamples(slist, fields, tags, ins.Labels)
+			slist.PushSamples(inputName, fields, tags)
 		}
 	}
 }
 
-func (ins *Instance) buildSystemContainerMetrics(summaryMetrics *SummaryMetrics, slist *list.SafeList) {
+func (ins *Instance) buildSystemContainerMetrics(summaryMetrics *SummaryMetrics, slist *types.SampleList) {
 	for _, container := range summaryMetrics.Node.SystemContainers {
 		tags := map[string]string{
 			"node":      summaryMetrics.Node.NodeName,
@@ -232,11 +230,11 @@ func (ins *Instance) buildSystemContainerMetrics(summaryMetrics *SummaryMetrics,
 		fields["system_container_logsfs_available_bytes"] = container.LogsFS.AvailableBytes
 		fields["system_container_logsfs_capacity_bytes"] = container.LogsFS.CapacityBytes
 
-		inputs.PushSamples(slist, fields, tags, ins.Labels)
+		slist.PushSamples(inputName, fields, tags)
 	}
 }
 
-func (ins *Instance) buildNodeMetrics(summaryMetrics *SummaryMetrics, slist *list.SafeList) {
+func (ins *Instance) buildNodeMetrics(summaryMetrics *SummaryMetrics, slist *types.SampleList) {
 	tags := map[string]string{
 		"node": summaryMetrics.Node.NodeName,
 	}
@@ -260,7 +258,7 @@ func (ins *Instance) buildNodeMetrics(summaryMetrics *SummaryMetrics, slist *lis
 	fields["node_runtime_image_fs_capacity_bytes"] = summaryMetrics.Node.Runtime.ImageFileSystem.CapacityBytes
 	fields["node_runtime_image_fs_used_bytes"] = summaryMetrics.Node.Runtime.ImageFileSystem.UsedBytes
 
-	inputs.PushSamples(slist, fields, tags, ins.Labels)
+	slist.PushSamples(inputName, fields, tags)
 }
 
 func (ins *Instance) gatherPodInfo(baseURL string) ([]Metadata, error) {

inputs/linux_sysctl_fs/linux_sysctl_fs_linux.go

@@ -14,13 +14,14 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/pkg/osx"
+	"flashcat.cloud/categraf/types"
 	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "linux_sysctl_fs"
 
 type SysctlFS struct {
-	config.Interval
+	config.PluginConfig
 
 	path string
 }
@@ -33,12 +34,11 @@ func init() {
 	})
 }
 
-func (s *SysctlFS) Prefix() string                  { return inputName }
 func (s *SysctlFS) Init() error                     { return nil }
 func (s *SysctlFS) Drop()                           {}
 func (s *SysctlFS) GetInstances() []inputs.Instance { return nil }
 
-func (s *SysctlFS) Gather(slist *list.SafeList) {
+func (s *SysctlFS) Gather(slist *types.SampleList) {
 	fields := map[string]interface{}{}
 
 	for _, n := range []string{"aio-nr", "aio-max-nr", "dquot-nr", "dquot-max", "super-nr", "super-max"} {
@@ -62,7 +62,7 @@ func (s *SysctlFS) Gather(slist *list.SafeList) {
 		log.Println("E! failed to gather file-nr:", err)
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }
 
 func (s *SysctlFS) gatherOne(name string, fields map[string]interface{}) error {

inputs/logstash/logstash.go

@@ -16,14 +16,12 @@ import (
 	"flashcat.cloud/categraf/pkg/jsonx"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "logstash"
 
 type Logstash struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -33,10 +31,9 @@ func init() {
 	})
 }
 
-func (l *Logstash) Prefix() string              { return inputName }
-func (l *Logstash) Init() error                 { return nil }
-func (l *Logstash) Drop()                       {}
-func (l *Logstash) Gather(slist *list.SafeList) {}
+func (l *Logstash) Init() error                    { return nil }
+func (l *Logstash) Drop()                          {}
+func (l *Logstash) Gather(slist *types.SampleList) {}
 
 func (l *Logstash) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(l.Instances))
@@ -147,7 +144,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if choice.Contains("jvm", ins.Collect) {
 		jvmURL, err := url.Parse(ins.URL + jvmStats)
 		if err != nil {
@@ -255,7 +252,7 @@ func (ins *Instance) gatherJSONData(address string, value interface{}) error {
 }
 
 // gatherJVMStats gather the JVM metrics and add results to list
-func (ins *Instance) gatherJVMStats(address string, slist *list.SafeList) error {
+func (ins *Instance) gatherJVMStats(address string, slist *types.SampleList) error {
 	jvmStats := &JVMStats{}
 
 	err := ins.gatherJSONData(address, jvmStats)
@@ -276,14 +273,14 @@ func (ins *Instance) gatherJVMStats(address string, slist *list.SafeList) error
 		return err
 	}
 	for key, val := range jsonParser.Fields {
-		slist.PushFront(types.NewSample("jvm_"+key, val, tags, ins.Labels))
+		slist.PushSample(inputName, "jvm_"+key, val, tags)
 	}
 
 	return nil
 }
 
 // gatherJVMStats gather the Process metrics and add results to list
-func (ins *Instance) gatherProcessStats(address string, slist *list.SafeList) error {
+func (ins *Instance) gatherProcessStats(address string, slist *types.SampleList) error {
 	processStats := &ProcessStats{}
 
 	err := ins.gatherJSONData(address, processStats)
@@ -304,13 +301,13 @@ func (ins *Instance) gatherProcessStats(address string, slist *list.SafeList) er
 	}
 
 	for key, val := range jsonParser.Fields {
-		slist.PushFront(types.NewSample("process_"+key, val, tags, ins.Labels))
+		slist.PushSample(inputName, "process_"+key, val, tags)
 	}
 	return nil
 }
 
 // gatherJVMStats gather the Pipeline metrics and add results to list (for Logstash < 6)
-func (ins *Instance) gatherPipelineStats(address string, slist *list.SafeList) error {
+func (ins *Instance) gatherPipelineStats(address string, slist *types.SampleList) error {
 	pipelineStats := &PipelineStats{}
 
 	err := ins.gatherJSONData(address, pipelineStats)
@@ -331,7 +328,7 @@ func (ins *Instance) gatherPipelineStats(address string, slist *list.SafeList) e
 		return err
 	}
 	for key, val := range jsonParser.Fields {
-		slist.PushFront(types.NewSample("events_"+key, val, tags, ins.Labels))
+		slist.PushSample(inputName, "events_"+key, val, tags)
 	}
 
 	err = ins.gatherPluginsStats(pipelineStats.Pipeline.Plugins.Inputs, "input", tags, slist)
@@ -358,7 +355,7 @@ func (ins *Instance) gatherPipelineStats(address string, slist *list.SafeList) e
 func (ins *Instance) gatherQueueStats(
 	queue *PipelineQueue,
 	tags map[string]string,
-	slist *list.SafeList,
+	slist *types.SampleList,
 ) error {
 	queueTags := map[string]string{
 		"queue_type": queue.Type,
@@ -400,13 +397,13 @@ func (ins *Instance) gatherQueueStats(
 
 	}
 	for key, val := range queueFields {
-		slist.PushFront(types.NewSample("queue_"+key, val, queueTags, ins.Labels))
+		slist.PushSample(inputName, "queue_"+key, val, queueTags)
 	}
 	return nil
 }
 
 //gatherJVMStats gather the Pipelines metrics and add results to list  (for Logstash >= 6)
-func (ins *Instance) gatherPipelinesStats(address string, slist *list.SafeList) error {
+func (ins *Instance) gatherPipelinesStats(address string, slist *types.SampleList) error {
 	pipelinesStats := &PipelinesStats{}
 
 	err := ins.gatherJSONData(address, pipelinesStats)
@@ -430,7 +427,7 @@ func (ins *Instance) gatherPipelinesStats(address string, slist *list.SafeList)
 		}
 
 		for key, val := range jsonParser.Fields {
-			slist.PushFront(types.NewSample("events_"+key, val, tags, ins.Labels))
+			slist.PushSample(inputName, "events_"+key, val, tags)
 		}
 
 		err = ins.gatherPluginsStats(pipeline.Plugins.Inputs, "input", tags, slist)
@@ -460,7 +457,7 @@ func (ins *Instance) gatherPluginsStats(
 	plugins []Plugin,
 	pluginType string,
 	tags map[string]string,
-	slist *list.SafeList,
+	slist *types.SampleList,
 ) error {
 	for _, plugin := range plugins {
 		pluginTags := map[string]string{
@@ -477,7 +474,7 @@ func (ins *Instance) gatherPluginsStats(
 			return err
 		}
 		for key, val := range jsonParser.Fields {
-			slist.PushFront(types.NewSample("plugins_"+key, val, pluginTags, ins.Labels))
+			slist.PushSample(inputName, "plugins_"+key, val, pluginTags)
 		}
 		/*
 			The elasticsearch/opensearch output produces additional stats around
@@ -512,7 +509,7 @@ func (ins *Instance) gatherPluginsStats(
 			}
 
 			for key, val := range jsonParser.Fields {
-				slist.PushFront(types.NewSample("plugins_"+key, val, pluginTags, ins.Labels))
+				slist.PushSample(inputName, "plugins_"+key, val, pluginTags)
 			}
 
 			/*
@@ -537,7 +534,7 @@ func (ins *Instance) gatherPluginsStats(
 				delete(jsonParser.Fields, k)
 			}
 			for key, val := range jsonParser.Fields {
-				slist.PushFront(types.NewSample("plugins_"+key, val, pluginTags, ins.Labels))
+				slist.PushSample(inputName, "plugins_"+key, val, pluginTags)
 			}
 		}
 	}

inputs/mem/mem.go

@@ -7,7 +7,7 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const inputName = "mem"
@@ -15,7 +15,7 @@ const inputName = "mem"
 type MemStats struct {
 	ps system.PS
 
-	config.Interval
+	config.PluginConfig
 	CollectPlatformFields bool `toml:"collect_platform_fields"`
 }
 
@@ -28,12 +28,11 @@ func init() {
 	})
 }
 
-func (s *MemStats) Prefix() string                  { return inputName }
 func (s *MemStats) Init() error                     { return nil }
 func (s *MemStats) Drop()                           {}
 func (s *MemStats) GetInstances() []inputs.Instance { return nil }
 
-func (s *MemStats) Gather(slist *list.SafeList) {
+func (s *MemStats) Gather(slist *types.SampleList) {
 	vm, err := s.ps.VMStat()
 	if err != nil {
 		log.Println("E! failed to get vmstat:", err)
@@ -102,5 +101,5 @@ func (s *MemStats) Gather(slist *list.SafeList) {
 		}
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }

inputs/mongodb/mongodb.go

@@ -1,7 +1,6 @@
 package mongodb
 
 import (
-	"errors"
 	"fmt"
 	"log"
 
@@ -10,13 +9,12 @@ import (
 	"flashcat.cloud/categraf/inputs/mongodb/exporter"
 	"flashcat.cloud/categraf/types"
 	"github.com/sirupsen/logrus"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "mongodb"
 
 type MongoDB struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -26,9 +24,8 @@ func init() {
 	})
 }
 
-func (r *MongoDB) Prefix() string              { return "" }
-func (r *MongoDB) Init() error                 { return nil }
-func (r *MongoDB) Gather(slist *list.SafeList) {}
+func (r *MongoDB) Init() error                    { return nil }
+func (r *MongoDB) Gather(slist *types.SampleList) {}
 
 func (r *MongoDB) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -90,14 +87,6 @@ func (ins *Instance) Init() error {
 		return err
 	}
 
-	if ins.Labels == nil {
-		ins.Labels = make(map[string]string)
-	}
-	_, ok := ins.Labels["instance"]
-	if !ok {
-		return errors.New("instance must be specified in labels")
-	}
-
 	l := logrus.New()
 	l.SetLevel(level)
 
@@ -129,8 +118,8 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
-	err := inputs.Collect(ins.e, slist, ins.Labels)
+func (ins *Instance) Gather(slist *types.SampleList) {
+	err := inputs.Collect(ins.e, slist)
 	if err != nil {
 		log.Println("E! failed to collect metrics:", err)
 	}

inputs/mysql/binlog.go

@@ -8,10 +8,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherBinlog(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherBinlog(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	var logBin uint8
 	err := db.QueryRow(`SELECT @@log_bin`).Scan(&logBin)
 	if err != nil {
@@ -66,11 +65,11 @@ func (ins *Instance) gatherBinlog(slist *list.SafeList, db *sql.DB, globalTags m
 	}
 
 	tags := tagx.Copy(globalTags)
-	slist.PushFront(types.NewSample("binlog_size_bytes", size, tags))
-	slist.PushFront(types.NewSample("binlog_file_count", count, tags))
+	slist.PushSample(inputName, "binlog_size_bytes", size, tags)
+	slist.PushSample(inputName, "binlog_file_count", count, tags)
 
 	value, err := strconv.ParseFloat(strings.Split(filename, ".")[1], 64)
 	if err == nil {
-		slist.PushFront(types.NewSample("binlog_file_number", value, tags))
+		slist.PushSample(inputName, "binlog_file_number", value, tags)
 	}
 }

inputs/mysql/custom_queries.go

@@ -11,10 +11,9 @@ import (
 	"flashcat.cloud/categraf/pkg/conv"
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherCustomQueries(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherCustomQueries(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	wg := new(sync.WaitGroup)
 	defer wg.Wait()
 
@@ -24,7 +23,7 @@ func (ins *Instance) gatherCustomQueries(slist *list.SafeList, db *sql.DB, globa
 	}
 }
 
-func (ins *Instance) gatherOneQuery(slist *list.SafeList, db *sql.DB, globalTags map[string]string, wg *sync.WaitGroup, query QueryConfig) {
+func (ins *Instance) gatherOneQuery(slist *types.SampleList, db *sql.DB, globalTags map[string]string, wg *sync.WaitGroup, query QueryConfig) {
 	defer wg.Done()
 
 	timeout := time.Duration(query.Timeout)
@@ -75,7 +74,7 @@ func (ins *Instance) gatherOneQuery(slist *list.SafeList, db *sql.DB, globalTags
 	}
 }
 
-func (ins *Instance) parseRow(row map[string]string, query QueryConfig, slist *list.SafeList, globalTags map[string]string) error {
+func (ins *Instance) parseRow(row map[string]string, query QueryConfig, slist *types.SampleList, globalTags map[string]string) error {
 	labels := tagx.Copy(globalTags)
 
 	for _, label := range query.LabelFields {
@@ -93,10 +92,10 @@ func (ins *Instance) parseRow(row map[string]string, query QueryConfig, slist *l
 		}
 
 		if query.FieldToAppend == "" {
-			slist.PushFront(types.NewSample(query.Mesurement+"_"+column, value, labels))
+			slist.PushFront(types.NewSample(inputName, query.Mesurement+"_"+column, value, labels))
 		} else {
 			suffix := cleanName(row[query.FieldToAppend])
-			slist.PushFront(types.NewSample(query.Mesurement+"_"+suffix+"_"+column, value, labels))
+			slist.PushFront(types.NewSample(inputName, query.Mesurement+"_"+suffix+"_"+column, value, labels))
 		}
 	}
 

inputs/mysql/engine_innodb.go

@@ -9,10 +9,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherEngineInnodbStatus(slist *list.SafeList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
+func (ins *Instance) gatherEngineInnodbStatus(slist *types.SampleList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
 	rows, err := db.Query(SQL_ENGINE_INNODB_STATUS)
 	if err != nil {
 		log.Println("E! failed to query engine innodb status:", err)
@@ -43,19 +42,19 @@ func (ins *Instance) gatherEngineInnodbStatus(slist *list.SafeList, db *sql.DB,
 			if err != nil {
 				continue
 			}
-			slist.PushFront(types.NewSample("engine_innodb_queries_inside_innodb", value, tags))
+			slist.PushFront(types.NewSample(inputName, "engine_innodb_queries_inside_innodb", value, tags))
 
 			value, err = strconv.ParseFloat(data[2], 64)
 			if err != nil {
 				continue
 			}
-			slist.PushFront(types.NewSample("engine_innodb_queries_in_queue", value, tags))
+			slist.PushFront(types.NewSample(inputName, "engine_innodb_queries_in_queue", value, tags))
 		} else if data := rViews.FindStringSubmatch(line); data != nil {
 			value, err := strconv.ParseFloat(data[1], 64)
 			if err != nil {
 				continue
 			}
-			slist.PushFront(types.NewSample("engine_innodb_read_views_open_inside_innodb", value, tags))
+			slist.PushFront(types.NewSample(inputName, "engine_innodb_read_views_open_inside_innodb", value, tags))
 		}
 	}
 }

inputs/mysql/engine_innodb_compute.go

@@ -5,10 +5,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherEngineInnodbStatusCompute(slist *list.SafeList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
+func (ins *Instance) gatherEngineInnodbStatusCompute(slist *types.SampleList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
 	tags := tagx.Copy(globalTags)
 
 	pageUsed := cache["innodb_buffer_pool_pages_total"] - cache["innodb_buffer_pool_pages_free"]
@@ -22,14 +21,14 @@ func (ins *Instance) gatherEngineInnodbStatusCompute(slist *list.SafeList, db *s
 		pageUtil = pageUsed / cache["innodb_buffer_pool_pages_total"] * 100
 	}
 
-	slist.PushFront(types.NewSample("global_status_buffer_pool_bytes", byteUsed, tags, map[string]string{"state": "used"}))
-	slist.PushFront(types.NewSample("global_status_buffer_pool_bytes", byteData, tags, map[string]string{"state": "data"}))
-	slist.PushFront(types.NewSample("global_status_buffer_pool_bytes", byteFree, tags, map[string]string{"state": "free"}))
-	slist.PushFront(types.NewSample("global_status_buffer_pool_bytes", byteTotal, tags, map[string]string{"state": "total"}))
-	slist.PushFront(types.NewSample("global_status_buffer_pool_bytes", byteDirty, tags, map[string]string{"state": "dirty"}))
-	slist.PushFront(types.NewSample("global_status_buffer_pool_pages_utilization", pageUtil, tags))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_bytes", byteUsed, tags, map[string]string{"state": "used"}))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_bytes", byteData, tags, map[string]string{"state": "data"}))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_bytes", byteFree, tags, map[string]string{"state": "free"}))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_bytes", byteTotal, tags, map[string]string{"state": "total"}))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_bytes", byteDirty, tags, map[string]string{"state": "dirty"}))
+	slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_pages_utilization", pageUtil, tags))
 
 	if ins.ExtraInnodbMetrics {
-		slist.PushFront(types.NewSample("global_status_buffer_pool_pages", pageUsed, tags, map[string]string{"state": "used"}))
+		slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_pages", pageUsed, tags, map[string]string{"state": "used"}))
 	}
 }

inputs/mysql/global_status.go

@@ -10,13 +10,12 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 // Regexp to match various groups of status vars.
 var globalStatusRE = regexp.MustCompile(`^(com|handler|connection_errors|innodb_buffer_pool_pages|innodb_rows|performance_schema)_(.*)$`)
 
-func (ins *Instance) gatherGlobalStatus(slist *list.SafeList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
+func (ins *Instance) gatherGlobalStatus(slist *types.SampleList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
 	rows, err := db.Query(SQL_GLOBAL_STATUS)
 	if err != nil {
 		log.Println("E! failed to query global status:", err)
@@ -62,42 +61,42 @@ func (ins *Instance) gatherGlobalStatus(slist *list.SafeList, db *sql.DB, global
 
 			match := globalStatusRE.FindStringSubmatch(key)
 			if match == nil {
-				slist.PushFront(types.NewSample("global_status_"+key, floatVal, tags))
+				slist.PushFront(types.NewSample(inputName, "global_status_"+key, floatVal, tags))
 				continue
 			}
 
 			switch match[1] {
 			case "com":
 				// Total number of executed MySQL commands.
-				slist.PushFront(types.NewSample("global_status_commands_total", floatVal, tags, map[string]string{"command": match[2]}))
+				slist.PushFront(types.NewSample(inputName, "global_status_commands_total", floatVal, tags, map[string]string{"command": match[2]}))
 			case "handler":
 				// Total number of executed MySQL handlers.
-				slist.PushFront(types.NewSample("global_status_handlers_total", floatVal, tags, map[string]string{"handler": match[2]}))
+				slist.PushFront(types.NewSample(inputName, "global_status_handlers_total", floatVal, tags, map[string]string{"handler": match[2]}))
 			case "connection_errors":
 				// Total number of MySQL connection errors.
-				slist.PushFront(types.NewSample("global_status_connection_errors_total", floatVal, tags, map[string]string{"error": match[2]}))
+				slist.PushFront(types.NewSample(inputName, "global_status_connection_errors_total", floatVal, tags, map[string]string{"error": match[2]}))
 			case "innodb_buffer_pool_pages":
 				switch match[2] {
 				case "data", "free", "misc", "old", "total", "dirty":
 					// Innodb buffer pool pages by state.
-					slist.PushFront(types.NewSample("global_status_buffer_pool_pages", floatVal, tags, map[string]string{"state": match[2]}))
+					slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_pages", floatVal, tags, map[string]string{"state": match[2]}))
 				default:
 					// Innodb buffer pool page state changes.
-					slist.PushFront(types.NewSample("global_status_buffer_pool_page_changes_total", floatVal, tags, map[string]string{"operation": match[2]}))
+					slist.PushFront(types.NewSample(inputName, "global_status_buffer_pool_page_changes_total", floatVal, tags, map[string]string{"operation": match[2]}))
 				}
 			case "innodb_rows":
 				// Total number of MySQL InnoDB row operations.
-				slist.PushFront(types.NewSample("global_status_innodb_row_ops_total", floatVal, tags, map[string]string{"operation": match[2]}))
+				slist.PushFront(types.NewSample(inputName, "global_status_innodb_row_ops_total", floatVal, tags, map[string]string{"operation": match[2]}))
 			case "performance_schema":
 				// Total number of MySQL instrumentations that could not be loaded or created due to memory constraints.
-				slist.PushFront(types.NewSample("global_status_performance_schema_lost_total", floatVal, tags, map[string]string{"instrumentation": match[2]}))
+				slist.PushFront(types.NewSample(inputName, "global_status_performance_schema_lost_total", floatVal, tags, map[string]string{"instrumentation": match[2]}))
 			}
 		}
 	}
 
 	// mysql_galera_variables_info metric.
 	if textItems["wsrep_local_state_uuid"] != "" {
-		slist.PushFront(types.NewSample("galera_status_info", 1, tags, map[string]string{
+		slist.PushFront(types.NewSample(inputName, "galera_status_info", 1, tags, map[string]string{
 			"wsrep_local_state_uuid":   textItems["wsrep_local_state_uuid"],
 			"wsrep_cluster_state_uuid": textItems["wsrep_cluster_state_uuid"],
 			"wsrep_provider_version":   textItems["wsrep_provider_version"],
@@ -134,7 +133,7 @@ func (ins *Instance) gatherGlobalStatus(slist *list.SafeList, db *sql.DB, global
 
 			if evsParsingSuccess {
 				for _, v := range evsMap {
-					slist.PushFront(types.NewSample("galera_evs_repl_latency_"+v.name, v.value, tags))
+					slist.PushFront(types.NewSample(inputName, "galera_evs_repl_latency_"+v.name, v.value, tags))
 				}
 			}
 		}

inputs/mysql/global_variables.go

@@ -9,10 +9,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherGlobalVariables(slist *list.SafeList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
+func (ins *Instance) gatherGlobalVariables(slist *types.SampleList, db *sql.DB, globalTags map[string]string, cache map[string]float64) {
 	rows, err := db.Query(SQL_GLOBAL_VARIABLES)
 	if err != nil {
 		log.Println("E! failed to query global variables:", err)
@@ -59,12 +58,12 @@ func (ins *Instance) gatherGlobalVariables(slist *list.SafeList, db *sql.DB, glo
 				continue
 			}
 
-			slist.PushFront(types.NewSample("global_variables_"+key, floatVal, tags))
+			slist.PushFront(types.NewSample(inputName, "global_variables_"+key, floatVal, tags))
 			continue
 		}
 	}
 
-	slist.PushFront(types.NewSample("version_info", 1, tags, map[string]string{
+	slist.PushFront(types.NewSample(inputName, "version_info", 1, tags, map[string]string{
 		"version":         textItems["version"],
 		"innodb_version":  textItems["innodb_version"],
 		"version_comment": textItems["version_comment"],
@@ -73,14 +72,14 @@ func (ins *Instance) gatherGlobalVariables(slist *list.SafeList, db *sql.DB, glo
 	// mysql_galera_variables_info metric.
 	// PXC/Galera variables information.
 	if textItems["wsrep_cluster_name"] != "" {
-		slist.PushFront(types.NewSample("galera_variables_info", 1, tags, map[string]string{
+		slist.PushFront(types.NewSample(inputName, "galera_variables_info", 1, tags, map[string]string{
 			"wsrep_cluster_name": textItems["wsrep_cluster_name"],
 		}))
 	}
 
 	// mysql_galera_gcache_size_bytes metric.
 	if textItems["wsrep_provider_options"] != "" {
-		slist.PushFront(types.NewSample("galera_gcache_size_bytes", parseWsrepProviderOptions(textItems["wsrep_provider_options"]), tags))
+		slist.PushFront(types.NewSample(inputName, "galera_gcache_size_bytes", parseWsrepProviderOptions(textItems["wsrep_provider_options"]), tags))
 	}
 
 	if textItems["transaction_isolation"] != "" || textItems["tx_isolation"] != "" {
@@ -89,7 +88,7 @@ func (ins *Instance) gatherGlobalVariables(slist *list.SafeList, db *sql.DB, glo
 			level = textItems["tx_isolation"]
 		}
 
-		slist.PushFront(types.NewSample("transaction_isolation", 1, tags, map[string]string{"level": level}))
+		slist.PushFront(types.NewSample(inputName, "transaction_isolation", 1, tags, map[string]string{"level": level}))
 	}
 }
 

inputs/mysql/mysql.go

@@ -11,7 +11,6 @@ import (
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
 	"github.com/go-sql-driver/mysql"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "mysql"
@@ -149,7 +148,7 @@ func (ins *Instance) InitValidMetrics() {
 }
 
 type MySQL struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -159,10 +158,9 @@ func init() {
 	})
 }
 
-func (m *MySQL) Prefix() string              { return inputName }
-func (m *MySQL) Init() error                 { return nil }
-func (m *MySQL) Drop()                       {}
-func (m *MySQL) Gather(slist *list.SafeList) {}
+func (m *MySQL) Init() error                    { return nil }
+func (m *MySQL) Drop()                          {}
+func (m *MySQL) Gather(slist *types.SampleList) {}
 
 func (m *MySQL) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(m.Instances))
@@ -172,23 +170,20 @@ func (m *MySQL) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	tags := map[string]string{"address": ins.Address}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
 
 	begun := time.Now()
 
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use, tags))
+		slist.PushSample(inputName, "scrape_use_seconds", use, tags)
 	}(begun)
 
 	db, err := sql.Open("mysql", ins.dsn)
 	if err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushSample(inputName, "up", 0, tags)
 		log.Println("E! failed to open mysql:", err)
 		return
 	}
@@ -200,12 +195,12 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	db.SetConnMaxLifetime(time.Minute)
 
 	if err = db.Ping(); err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushSample(inputName, "up", 0, tags)
 		log.Println("E! failed to ping mysql:", err)
 		return
 	}
 
-	slist.PushFront(types.NewSample("up", 1, tags))
+	slist.PushSample(inputName, "up", 1, tags)
 
 	cache := make(map[string]float64)
 

inputs/mysql/processlist.go

@@ -7,7 +7,6 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 // These are const but can't be declared as such because golang doesn't allow const maps
@@ -90,7 +89,7 @@ var (
 	}
 )
 
-func (ins *Instance) gatherProcesslistByState(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherProcesslistByState(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	if !ins.GatherProcessListProcessByState {
 		return
 	}
@@ -131,7 +130,7 @@ func (ins *Instance) gatherProcesslistByState(slist *list.SafeList, db *sql.DB,
 	}
 
 	for s, c := range stateCounts {
-		slist.PushFront(types.NewSample("processlist_processes_by_state", c, labels, map[string]string{"state": s}))
+		slist.PushFront(types.NewSample(inputName, "processlist_processes_by_state", c, labels, map[string]string{"state": s}))
 	}
 }
 

inputs/mysql/processlist_by_user.go

@@ -6,10 +6,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherProcesslistByUser(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherProcesslistByUser(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	if !ins.GatherProcessListProcessByUser {
 		return
 	}
@@ -34,6 +33,6 @@ func (ins *Instance) gatherProcesslistByUser(slist *list.SafeList, db *sql.DB, g
 			return
 		}
 
-		slist.PushFront(types.NewSample("processlist_processes_by_user", connections, labels, map[string]string{"user": user}))
+		slist.PushFront(types.NewSample(inputName, "processlist_processes_by_user", connections, labels, map[string]string{"user": user}))
 	}
 }

inputs/mysql/schema_size.go

@@ -6,10 +6,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherSchemaSize(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherSchemaSize(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	if !ins.GatherSchemaSize {
 		return
 	}
@@ -34,6 +33,6 @@ func (ins *Instance) gatherSchemaSize(slist *list.SafeList, db *sql.DB, globalTa
 			return
 		}
 
-		slist.PushFront(types.NewSample("schema_size_bytes", size, labels, map[string]string{"schema": schema}))
+		slist.PushFront(types.NewSample(inputName, "schema_size_bytes", size, labels, map[string]string{"schema": schema}))
 	}
 }

inputs/mysql/slave_status.go

@@ -7,7 +7,6 @@ import (
 	"strings"
 
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 var slaveStatusQueries = [2]string{"SHOW ALL SLAVES STATUS", "SHOW SLAVE STATUS"}
@@ -31,7 +30,7 @@ func querySlaveStatus(db *sql.DB) (rows *sql.Rows, err error) {
 	return
 }
 
-func (ins *Instance) gatherSlaveStatus(slist *list.SafeList, db *sql.DB, globalTags map[string]string) {
+func (ins *Instance) gatherSlaveStatus(slist *types.SampleList, db *sql.DB, globalTags map[string]string) {
 	if !ins.GatherSlaveStatus {
 		return
 	}
@@ -88,7 +87,7 @@ func (ins *Instance) gatherSlaveStatus(slist *list.SafeList, db *sql.DB, globalT
 			}
 
 			if value, ok := parseStatus(*scanArgs[i].(*sql.RawBytes)); ok {
-				slist.PushFront(types.NewSample("slave_status_"+key, value, globalTags, map[string]string{
+				slist.PushFront(types.NewSample(inputName, "slave_status_"+key, value, globalTags, map[string]string{
 					"master_host":  masterHost,
 					"master_uuid":  masterUUID,
 					"channel_name": channelName,

inputs/mysql/table_size.go

@@ -6,10 +6,9 @@ import (
 
 	"flashcat.cloud/categraf/pkg/tagx"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
-func (ins *Instance) gatherTableSize(slist *list.SafeList, db *sql.DB, globalTags map[string]string, isSystem bool) {
+func (ins *Instance) gatherTableSize(slist *types.SampleList, db *sql.DB, globalTags map[string]string, isSystem bool) {
 	query := SQL_QUERY_TABLE_SIZE
 	if isSystem {
 		query = SQL_QUERY_SYSTEM_TABLE_SIZE
@@ -42,7 +41,7 @@ func (ins *Instance) gatherTableSize(slist *list.SafeList, db *sql.DB, globalTag
 			return
 		}
 
-		slist.PushFront(types.NewSample("table_size_index_bytes", indexSize, labels, map[string]string{"schema": schema, "table": table}))
-		slist.PushFront(types.NewSample("table_size_data_bytes", dataSize, labels, map[string]string{"schema": schema, "table": table}))
+		slist.PushFront(types.NewSample(inputName, "table_size_index_bytes", indexSize, labels, map[string]string{"schema": schema, "table": table}))
+		slist.PushFront(types.NewSample(inputName, "table_size_data_bytes", dataSize, labels, map[string]string{"schema": schema, "table": table}))
 	}
 }

inputs/net/net.go

@@ -9,7 +9,7 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
 	"flashcat.cloud/categraf/pkg/filter"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const inputName = "net"
@@ -17,7 +17,7 @@ const inputName = "net"
 type NetIOStats struct {
 	ps system.PS
 
-	config.Interval
+	config.PluginConfig
 	CollectProtocolStats bool     `toml:"collect_protocol_stats"`
 	Interfaces           []string `toml:"interfaces"`
 
@@ -33,7 +33,6 @@ func init() {
 	})
 }
 
-func (s *NetIOStats) Prefix() string                  { return inputName }
 func (s *NetIOStats) Drop()                           {}
 func (s *NetIOStats) GetInstances() []inputs.Instance { return nil }
 
@@ -50,7 +49,7 @@ func (s *NetIOStats) Init() error {
 	return nil
 }
 
-func (s *NetIOStats) Gather(slist *list.SafeList) {
+func (s *NetIOStats) Gather(slist *types.SampleList) {
 	netio, err := s.ps.NetIO()
 	if err != nil {
 		log.Println("E! failed to get net io metrics:", err)
@@ -111,6 +110,6 @@ func (s *NetIOStats) Gather(slist *list.SafeList) {
 			"drop_out":     io.Dropout,
 		}
 
-		inputs.PushSamples(slist, fields, tags)
+		slist.PushSamples(inputName, fields, tags)
 	}
 }

inputs/net_response/net_response.go

@@ -14,7 +14,6 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const (
@@ -84,7 +83,7 @@ func (ins *Instance) Init() error {
 }
 
 type NetResponse struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -94,10 +93,9 @@ func init() {
 	})
 }
 
-func (n *NetResponse) Prefix() string              { return inputName }
-func (n *NetResponse) Init() error                 { return nil }
-func (n *NetResponse) Drop()                       {}
-func (n *NetResponse) Gather(slist *list.SafeList) {}
+func (n *NetResponse) Init() error                    { return nil }
+func (n *NetResponse) Drop()                          {}
+func (n *NetResponse) Gather(slist *types.SampleList) {}
 
 func (n *NetResponse) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(n.Instances))
@@ -107,7 +105,7 @@ func (n *NetResponse) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if len(ins.Targets) == 0 {
 		return
 	}
@@ -123,21 +121,17 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gather(slist *list.SafeList, target string) {
+func (ins *Instance) gather(slist *types.SampleList, target string) {
 	if config.Config.DebugMode {
 		log.Println("D! net_response... target:", target)
 	}
 
 	labels := map[string]string{"target": target}
-	for k, v := range ins.Labels {
-		labels[k] = v
-	}
-
 	fields := map[string]interface{}{}
 
 	defer func() {
 		for field, value := range fields {
-			slist.PushFront(types.NewSample(field, value, labels))
+			slist.PushFront(types.NewSample(inputName, field, value, labels))
 		}
 	}()
 

inputs/netstat/netstat.go

@@ -7,14 +7,14 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/inputs/system"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const inputName = "netstat"
 
 type NetStats struct {
 	ps system.PS
-	config.Interval
+	config.PluginConfig
 }
 
 func init() {
@@ -26,12 +26,11 @@ func init() {
 	})
 }
 
-func (s *NetStats) Prefix() string                  { return inputName }
 func (s *NetStats) Init() error                     { return nil }
 func (s *NetStats) Drop()                           {}
 func (s *NetStats) GetInstances() []inputs.Instance { return nil }
 
-func (s *NetStats) Gather(slist *list.SafeList) {
+func (s *NetStats) Gather(slist *types.SampleList) {
 	netconns, err := s.ps.NetConnections()
 	if err != nil {
 		log.Println("E! failed to get net connections:", err)
@@ -71,5 +70,5 @@ func (s *NetStats) Gather(slist *list.SafeList) {
 		"udp_socket":      counts["UDP"],
 	}
 
-	inputs.PushSamples(slist, fields, tags)
+	slist.PushSamples(inputName, fields, tags)
 }

inputs/nginx_upstream_check/nginx_upstream_check.go

@@ -17,13 +17,12 @@ import (
 	"flashcat.cloud/categraf/pkg/netx"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "nginx_upstream_check"
 
 type NginxUpstreamCheck struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -33,10 +32,9 @@ func init() {
 	})
 }
 
-func (r *NginxUpstreamCheck) Prefix() string              { return inputName }
-func (r *NginxUpstreamCheck) Init() error                 { return nil }
-func (r *NginxUpstreamCheck) Drop()                       {}
-func (r *NginxUpstreamCheck) Gather(slist *list.SafeList) {}
+func (r *NginxUpstreamCheck) Init() error                    { return nil }
+func (r *NginxUpstreamCheck) Drop()                          {}
+func (r *NginxUpstreamCheck) Gather(slist *types.SampleList) {}
 
 func (r *NginxUpstreamCheck) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -149,7 +147,7 @@ func (ins *Instance) createHTTPClient() (*http.Client, error) {
 	return client, nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	wg := new(sync.WaitGroup)
 	for _, target := range ins.Targets {
 		wg.Add(1)
@@ -180,15 +178,12 @@ type NginxUpstreamCheckServer struct {
 	Port     uint16 `json:"port"`
 }
 
-func (ins *Instance) gather(slist *list.SafeList, target string) {
+func (ins *Instance) gather(slist *types.SampleList, target string) {
 	if config.Config.DebugMode {
 		log.Println("D! nginx_upstream_check... target:", target)
 	}
 
 	labels := map[string]string{"target": target}
-	for k, v := range ins.Labels {
-		labels[k] = v
-	}
 
 	checkData := &NginxUpstreamCheckData{}
 
@@ -212,7 +207,7 @@ func (ins *Instance) gather(slist *list.SafeList, target string) {
 			"fall":        server.Fall,
 		}
 
-		inputs.PushSamples(slist, fields, tags, labels)
+		slist.PushSamples(inputName, fields, tags, labels)
 	}
 }
 

inputs/ntp/ntp.go

@@ -7,14 +7,13 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 	"github.com/toolkits/pkg/nux"
 )
 
 const inputName = "ntp"
 
 type NTPStat struct {
-	config.Interval
+	config.PluginConfig
 	NTPServers []string `toml:"ntp_servers"`
 	server     string
 }
@@ -25,7 +24,6 @@ func init() {
 	})
 }
 
-func (n *NTPStat) Prefix() string                  { return inputName }
 func (n *NTPStat) Drop()                           {}
 func (n *NTPStat) GetInstances() []inputs.Instance { return nil }
 
@@ -36,7 +34,7 @@ func (n *NTPStat) Init() error {
 	return nil
 }
 
-func (n *NTPStat) Gather(slist *list.SafeList) {
+func (n *NTPStat) Gather(slist *types.SampleList) {
 	for _, server := range n.NTPServers {
 		if n.server == "" {
 			n.server = server
@@ -56,7 +54,7 @@ func (n *NTPStat) Gather(slist *list.SafeList) {
 		duration := ((serverReciveTime.UnixNano() - orgTime.UnixNano()) + (serverTransmitTime.UnixNano() - dstTime.UnixNano())) / 2
 
 		delta := duration / 1e6 // convert to ms
-		slist.PushFront(types.NewSample("offset_ms", delta))
+		slist.PushSample("", "ntp_offset_ms", delta)
 		break
 	}
 }

inputs/nvidia_smi/nvidia_smi.go

@@ -10,13 +10,12 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "nvidia_smi"
 
 type GPUStats struct {
-	config.Interval
+	config.PluginConfig
 
 	NvidiaSmiCommand string `toml:"nvidia_smi_command"`
 	QueryFieldNames  string `toml:"query_field_names"`
@@ -31,7 +30,6 @@ func init() {
 	})
 }
 
-func (s *GPUStats) Prefix() string                  { return inputName }
 func (s *GPUStats) Drop()                           {}
 func (s *GPUStats) GetInstances() []inputs.Instance { return nil }
 
@@ -51,7 +49,7 @@ func (s *GPUStats) Init() error {
 	return nil
 }
 
-func (s *GPUStats) Gather(slist *list.SafeList) {
+func (s *GPUStats) Gather(slist *types.SampleList) {
 	if s.NvidiaSmiCommand == "" {
 		return
 	}
@@ -61,16 +59,16 @@ func (s *GPUStats) Gather(slist *list.SafeList) {
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use))
+		slist.PushFront(types.NewSample(inputName, "scrape_use_seconds", use))
 	}(begun)
 
 	currentTable, err := scrape(s.qFields, s.NvidiaSmiCommand)
 	if err != nil {
-		slist.PushFront(types.NewSample("scraper_up", 0))
+		slist.PushFront(types.NewSample(inputName, "scraper_up", 0))
 		return
 	}
 
-	slist.PushFront(types.NewSample("scraper_up", 1))
+	slist.PushFront(types.NewSample(inputName, "scraper_up", 1))
 
 	for _, currentRow := range currentTable.rows {
 		uuid := strings.TrimPrefix(strings.ToLower(currentRow.qFieldToCells[uuidQField].rawValue), "gpu-")
@@ -80,7 +78,7 @@ func (s *GPUStats) Gather(slist *list.SafeList) {
 		vBiosVersion := currentRow.qFieldToCells[vBiosVersionQField].rawValue
 		driverVersion := currentRow.qFieldToCells[driverVersionQField].rawValue
 
-		slist.PushFront(types.NewSample("gpu_info", 1, map[string]string{
+		slist.PushFront(types.NewSample(inputName, "gpu_info", 1, map[string]string{
 			"uuid":                 uuid,
 			"name":                 name,
 			"driver_model_current": driverModelCurrent,
@@ -100,7 +98,7 @@ func (s *GPUStats) Gather(slist *list.SafeList) {
 				continue
 			}
 
-			slist.PushFront(types.NewSample(metricInfo.metricName, num, map[string]string{"uuid": uuid}))
+			slist.PushFront(types.NewSample(inputName, metricInfo.metricName, num, map[string]string{"uuid": uuid}))
 		}
 	}
 }

inputs/oracle/README.md

@@ -14,7 +14,7 @@
 有些字段可以为空，如果 mesurement、metric_fields、field_to_append 三个字段都配置了，会把这 3 部分拼成 metric 的最终名字，参考下面的代码：
 
 ```go
-func (o *Oracle) parseRow(row map[string]string, metricConf MetricConfig, slist *list.SafeList, tags map[string]string) error {
+func (o *Oracle) parseRow(row map[string]string, metricConf MetricConfig, slist *types.SampleList, tags map[string]string) error {
 	labels := make(map[string]string)
 	for k, v := range tags {
 		labels[k] = v

inputs/oracle/oracle_linux_amd64.go

@@ -50,7 +50,7 @@ type MetricConfig struct {
 }
 
 type Oracle struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance    `toml:"instances"`
 	Metrics   []MetricConfig `toml:"metrics"`
 }
@@ -61,9 +61,8 @@ func init() {
 	})
 }
 
-func (o *Oracle) Prefix() string              { return inputName }
-func (o *Oracle) Init() error                 { return nil }
-func (o *Oracle) Gather(slist *list.SafeList) {}
+func (o *Oracle) Init() error                    { return nil }
+func (o *Oracle) Gather(slist *types.SampleList) {}
 
 func (o *Oracle) Drop() {
 	for i := 0; i < len(o.Instances); i++ {
@@ -104,22 +103,19 @@ func (ins *Instance) Drop() error {
 	}
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	tags := map[string]string{"address": ins.Address}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
 
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use, tags))
+		slist.PushFront(types.NewSample(inputName, "scrape_use_seconds", use, tags))
 	}(time.Now())
 
 	if err := ins.client.Ping(); err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 0, tags))
 		log.Println("E! failed to ping oracle:", ins.Address, "error:", err)
 	} else {
-		slist.PushFront(types.NewSample("up", 1, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 1, tags))
 	}
 
 	waitMetrics := new(sync.WaitGroup)
@@ -139,7 +135,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	waitMetrics.Wait()
 }
 
-func (ins *Instance) scrapeMetric(waitMetrics *sync.WaitGroup, slist *list.SafeList, metricConf MetricConfig, tags map[string]string) {
+func (ins *Instance) scrapeMetric(waitMetrics *sync.WaitGroup, slist *types.SampleList, metricConf MetricConfig, tags map[string]string) {
 	defer waitMetrics.Done()
 
 	timeout := time.Duration(metricConf.Timeout)
@@ -205,7 +201,7 @@ func (ins *Instance) scrapeMetric(waitMetrics *sync.WaitGroup, slist *list.SafeL
 	}
 }
 
-func (ins *Instance) parseRow(row map[string]string, metricConf MetricConfig, slist *list.SafeList, tags map[string]string) error {
+func (ins *Instance) parseRow(row map[string]string, metricConf MetricConfig, slist *types.SampleList, tags map[string]string) error {
 	labels := make(map[string]string)
 	for k, v := range tags {
 		labels[k] = v
@@ -226,10 +222,10 @@ func (ins *Instance) parseRow(row map[string]string, metricConf MetricConfig, sl
 		}
 
 		if metricConf.FieldToAppend == "" {
-			slist.PushFront(types.NewSample(metricConf.Mesurement+"_"+column, value, labels))
+			slist.PushFront(types.NewSample(inputName, metricConf.Mesurement+"_"+column, value, labels))
 		} else {
 			suffix := cleanName(row[metricConf.FieldToAppend])
-			slist.PushFront(types.NewSample(metricConf.Mesurement+"_"+suffix+"_"+column, value, labels))
+			slist.PushFront(types.NewSample(inputName, metricConf.Mesurement+"_"+suffix+"_"+column, value, labels))
 		}
 	}
 

inputs/ping/ping.go

@@ -13,7 +13,6 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
 	"github.com/go-ping/ping"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const (
@@ -80,7 +79,7 @@ func (ins *Instance) Init() error {
 }
 
 type Ping struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -90,10 +89,9 @@ func init() {
 	})
 }
 
-func (p *Ping) Prefix() string              { return inputName }
-func (p *Ping) Init() error                 { return nil }
-func (p *Ping) Drop()                       {}
-func (p *Ping) Gather(slist *list.SafeList) {}
+func (p *Ping) Init() error                    { return nil }
+func (p *Ping) Drop()                          {}
+func (p *Ping) Gather(slist *types.SampleList) {}
 
 func (p *Ping) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(p.Instances))
@@ -103,7 +101,7 @@ func (p *Ping) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	if len(ins.Targets) == 0 {
 		return
 	}
@@ -119,21 +117,18 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gather(slist *list.SafeList, target string) {
+func (ins *Instance) gather(slist *types.SampleList, target string) {
 	if config.Config.DebugMode {
 		log.Println("D! ping...", target)
 	}
 
 	labels := map[string]string{"target": target}
-	for k, v := range ins.Labels {
-		labels[k] = v
-	}
 
 	fields := map[string]interface{}{}
 
 	defer func() {
 		for field, value := range fields {
-			slist.PushFront(types.NewSample(field, value, labels))
+			slist.PushFront(types.NewSample(inputName, field, value, labels))
 		}
 	}()
 

inputs/processes/processes_notwindows.go

@@ -17,13 +17,13 @@ import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/pkg/osx"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const inputName = "processes"
 
 type Processes struct {
-	config.Interval
+	config.PluginConfig
 	ForcePS   bool `toml:"force_ps"`
 	ForceProc bool `toml:"force_proc"`
 }
@@ -34,12 +34,11 @@ func init() {
 	})
 }
 
-func (p *Processes) Prefix() string                  { return inputName }
 func (p *Processes) Init() error                     { return nil }
 func (p *Processes) Drop()                           {}
 func (p *Processes) GetInstances() []inputs.Instance { return nil }
 
-func (p *Processes) Gather(slist *list.SafeList) {
+func (p *Processes) Gather(slist *types.SampleList) {
 	// Get an empty map of metric fields
 	fields := getEmptyFields()
 
@@ -65,7 +64,7 @@ func (p *Processes) Gather(slist *list.SafeList) {
 		}
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }
 
 // Gets empty fields of metrics based on the OS

inputs/procstat/README.md

@@ -28,7 +28,7 @@ search_exec_substring = "nginx"
 mode 配置有两个值供选择，一个是 solaris，一个是 irix，默认是 irix，用这个配置来决定使用哪种 cpu 使用率的计算方法：
 
 ```go
-func (ins *Instance) gatherCPU(slist *list.SafeList, procs map[PID]Process, tags map[string]string, solarisMode bool) {
+func (ins *Instance) gatherCPU(slist *types.SampleList, procs map[PID]Process, tags map[string]string, solarisMode bool) {
 	var value float64
 	for pid := range procs {
 		v, err := procs[pid].Percent(time.Duration(0))

inputs/procstat/procstat.go

@@ -12,7 +12,6 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/types"
 	"github.com/shirou/gopsutil/v3/process"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "procstat"
@@ -61,7 +60,7 @@ func (ins *Instance) Init() error {
 }
 
 type Procstat struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -71,10 +70,9 @@ func init() {
 	})
 }
 
-func (s *Procstat) Prefix() string              { return inputName }
-func (s *Procstat) Init() error                 { return nil }
-func (s *Procstat) Drop()                       {}
-func (s *Procstat) Gather(slist *list.SafeList) {}
+func (s *Procstat) Init() error                    { return nil }
+func (s *Procstat) Drop()                          {}
+func (s *Procstat) Gather(slist *types.SampleList) {}
 
 func (s *Procstat) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(s.Instances))
@@ -84,17 +82,13 @@ func (s *Procstat) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	var (
 		pids []PID
 		err  error
 		tags = map[string]string{"search_string": ins.searchString}
 	)
 
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
-
 	pg, _ := NewNativeFinder()
 	if ins.SearchExecSubstring != "" {
 		pids, err = pg.Pattern(ins.SearchExecSubstring)
@@ -109,11 +103,11 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 
 	if err != nil {
 		log.Println("E! procstat: failed to lookup pids, search string:", ins.searchString, "error:", err)
-		slist.PushFront(types.NewSample("lookup_count", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "lookup_count", 0, tags))
 		return
 	}
 
-	slist.PushFront(types.NewSample("lookup_count", len(pids), tags))
+	slist.PushFront(types.NewSample(inputName, "lookup_count", len(pids), tags))
 	if len(pids) == 0 {
 		return
 	}
@@ -173,41 +167,41 @@ func (ins *Instance) updateProcesses(pids []PID) {
 	ins.procs = procs
 }
 
-func (ins *Instance) gatherThreads(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherThreads(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	var val int32
 	for pid := range procs {
 		v, err := procs[pid].NumThreads()
 		if err == nil {
 			val += v
 			if ins.GatherPerPid {
-				slist.PushFront(types.NewSample("num_threads", val, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "num_threads", val, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 		}
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("num_threads_total", val, tags))
+		slist.PushFront(types.NewSample(inputName, "num_threads_total", val, tags))
 	}
 }
 
-func (ins *Instance) gatherFD(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherFD(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	var val int32
 	for pid := range procs {
 		v, err := procs[pid].NumFDs()
 		if err == nil {
 			val += v
 			if ins.GatherPerPid {
-				slist.PushFront(types.NewSample("num_fds", val, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "num_fds", val, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 		}
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("num_fds_total", val, tags))
+		slist.PushFront(types.NewSample(inputName, "num_fds_total", val, tags))
 	}
 }
 
-func (ins *Instance) gatherIO(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherIO(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	var (
 		readCount  uint64
 		writeCount uint64
@@ -223,30 +217,30 @@ func (ins *Instance) gatherIO(slist *list.SafeList, procs map[PID]Process, tags
 			readBytes += io.ReadBytes
 			writeBytes += io.WriteBytes
 			if ins.GatherPerPid {
-				slist.PushFront(types.NewSample("read_count", readCount, map[string]string{"pid": fmt.Sprint(pid)}, tags))
-				slist.PushFront(types.NewSample("write_count", writeCount, map[string]string{"pid": fmt.Sprint(pid)}, tags))
-				slist.PushFront(types.NewSample("read_bytes", readBytes, map[string]string{"pid": fmt.Sprint(pid)}, tags))
-				slist.PushFront(types.NewSample("write_bytes", writeBytes, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "read_count", readCount, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "write_count", writeCount, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "read_bytes", readBytes, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "write_bytes", writeBytes, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 		}
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("read_count_total", readCount, tags))
-		slist.PushFront(types.NewSample("write_count_total", writeCount, tags))
-		slist.PushFront(types.NewSample("read_bytes_total", readBytes, tags))
-		slist.PushFront(types.NewSample("write_bytes_total", writeBytes, tags))
+		slist.PushFront(types.NewSample(inputName, "read_count_total", readCount, tags))
+		slist.PushFront(types.NewSample(inputName, "write_count_total", writeCount, tags))
+		slist.PushFront(types.NewSample(inputName, "read_bytes_total", readBytes, tags))
+		slist.PushFront(types.NewSample(inputName, "write_bytes_total", writeBytes, tags))
 	}
 }
 
-func (ins *Instance) gatherUptime(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherUptime(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	// use the smallest one
 	var value int64 = -1
 	for pid := range procs {
 		v, err := procs[pid].CreateTime() // returns epoch in ms
 		if err == nil {
 			if ins.GatherPerPid {
-				slist.PushFront(types.NewSample("uptime", value, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "uptime", value, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 			if value == -1 {
 				value = v
@@ -260,48 +254,48 @@ func (ins *Instance) gatherUptime(slist *list.SafeList, procs map[PID]Process, t
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("uptime_minimum", value, tags))
+		slist.PushFront(types.NewSample(inputName, "uptime_minimum", value, tags))
 	}
 }
 
-func (ins *Instance) gatherCPU(slist *list.SafeList, procs map[PID]Process, tags map[string]string, solarisMode bool) {
+func (ins *Instance) gatherCPU(slist *types.SampleList, procs map[PID]Process, tags map[string]string, solarisMode bool) {
 	var value float64
 	for pid := range procs {
 		v, err := procs[pid].Percent(time.Duration(0))
 		if err == nil {
 			if solarisMode {
 				value += v / float64(runtime.NumCPU())
-				slist.PushFront(types.NewSample("cpu_usage", v/float64(runtime.NumCPU()), map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "cpu_usage", v/float64(runtime.NumCPU()), map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			} else {
 				value += v
-				slist.PushFront(types.NewSample("cpu_usage", v, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "cpu_usage", v, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 		}
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("cpu_usage_total", value, tags))
+		slist.PushFront(types.NewSample(inputName, "cpu_usage_total", value, tags))
 	}
 }
 
-func (ins *Instance) gatherMem(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherMem(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	var value float32
 	for pid := range procs {
 		v, err := procs[pid].MemoryPercent()
 		if err == nil {
 			value += v
 			if ins.GatherPerPid {
-				slist.PushFront(types.NewSample("mem_usage", v, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+				slist.PushFront(types.NewSample(inputName, "mem_usage", v, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 			}
 		}
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("mem_usage_total", value, tags))
+		slist.PushFront(types.NewSample(inputName, "mem_usage_total", value, tags))
 	}
 }
 
-func (ins *Instance) gatherLimit(slist *list.SafeList, procs map[PID]Process, tags map[string]string) {
+func (ins *Instance) gatherLimit(slist *types.SampleList, procs map[PID]Process, tags map[string]string) {
 	var softMin, hardMin uint64
 	for pid := range procs {
 		rlims, err := procs[pid].RlimitUsage(false)
@@ -309,8 +303,8 @@ func (ins *Instance) gatherLimit(slist *list.SafeList, procs map[PID]Process, ta
 			for _, rlim := range rlims {
 				if rlim.Resource == process.RLIMIT_NOFILE {
 					if ins.GatherPerPid {
-						slist.PushFront(types.NewSample("rlimit_num_fds_soft", rlim.Soft, map[string]string{"pid": fmt.Sprint(pid)}, tags))
-						slist.PushFront(types.NewSample("rlimit_num_fds_hard", rlim.Hard, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+						slist.PushFront(types.NewSample(inputName, "rlimit_num_fds_soft", rlim.Soft, map[string]string{"pid": fmt.Sprint(pid)}, tags))
+						slist.PushFront(types.NewSample(inputName, "rlimit_num_fds_hard", rlim.Hard, map[string]string{"pid": fmt.Sprint(pid)}, tags))
 					}
 
 					if softMin == 0 {
@@ -332,8 +326,8 @@ func (ins *Instance) gatherLimit(slist *list.SafeList, procs map[PID]Process, ta
 	}
 
 	if ins.GatherTotal {
-		slist.PushFront(types.NewSample("rlimit_num_fds_soft_minimum", softMin, tags))
-		slist.PushFront(types.NewSample("rlimit_num_fds_hard_minimum", hardMin, tags))
+		slist.PushFront(types.NewSample(inputName, "rlimit_num_fds_soft_minimum", softMin, tags))
+		slist.PushFront(types.NewSample(inputName, "rlimit_num_fds_hard_minimum", hardMin, tags))
 	}
 }
 

inputs/prometheus/prometheus.go

@@ -16,7 +16,6 @@ import (
 	"flashcat.cloud/categraf/pkg/filter"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "prometheus"
@@ -126,7 +125,7 @@ func (ins *Instance) createHTTPClient() (*http.Client, error) {
 }
 
 type Prometheus struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -136,10 +135,9 @@ func init() {
 	})
 }
 
-func (p *Prometheus) Prefix() string              { return "" }
-func (p *Prometheus) Init() error                 { return nil }
-func (p *Prometheus) Drop()                       {}
-func (p *Prometheus) Gather(slist *list.SafeList) {}
+func (p *Prometheus) Init() error                    { return nil }
+func (p *Prometheus) Drop()                          {}
+func (p *Prometheus) Gather(slist *types.SampleList) {}
 
 func (p *Prometheus) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(p.Instances))
@@ -149,7 +147,7 @@ func (p *Prometheus) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	urlwg := new(sync.WaitGroup)
 	defer urlwg.Wait()
 
@@ -177,7 +175,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	}
 }
 
-func (ins *Instance) gatherUrl(urlwg *sync.WaitGroup, slist *list.SafeList, uri ScrapeUrl) {
+func (ins *Instance) gatherUrl(urlwg *sync.WaitGroup, slist *types.SampleList, uri ScrapeUrl) {
 	defer urlwg.Done()
 
 	u := uri.URL
@@ -204,23 +202,19 @@ func (ins *Instance) gatherUrl(urlwg *sync.WaitGroup, slist *list.SafeList, uri
 
 	labels[urlKey] = urlVal
 
-	for key, val := range ins.Labels {
-		labels[key] = val
-	}
-
 	for key, val := range uri.Tags {
 		labels[key] = val
 	}
 
 	res, err := ins.client.Do(req)
 	if err != nil {
-		slist.PushFront(types.NewSample("up", 0, labels))
+		slist.PushFront(types.NewSample("", "up", 0, labels))
 		log.Println("E! failed to query url:", u.String(), "error:", err)
 		return
 	}
 
 	if res.StatusCode != http.StatusOK {
-		slist.PushFront(types.NewSample("up", 0, labels))
+		slist.PushFront(types.NewSample("", "up", 0, labels))
 		log.Println("E! failed to query url:", u.String(), "status code:", res.StatusCode)
 		return
 	}
@@ -229,12 +223,12 @@ func (ins *Instance) gatherUrl(urlwg *sync.WaitGroup, slist *list.SafeList, uri
 
 	body, err := io.ReadAll(res.Body)
 	if err != nil {
-		slist.PushFront(types.NewSample("up", 0, labels))
+		slist.PushFront(types.NewSample("", "up", 0, labels))
 		log.Println("E! failed to read response body, error:", err)
 		return
 	}
 
-	slist.PushFront(types.NewSample("up", 1, labels))
+	slist.PushFront(types.NewSample("", "up", 1, labels))
 
 	parser := prometheus.NewParser(ins.NamePrefix, labels, res.Header, ins.ignoreMetricsFilter, ins.ignoreLabelKeysFilter)
 	if err = parser.Parse(body, slist); err != nil {

inputs/pusher.go

@@ -1,18 +0,0 @@
-package inputs
-
-import (
-	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
-)
-
-func PushSamples(slist *list.SafeList, fields map[string]interface{}, labels ...map[string]string) {
-	for metric, value := range fields {
-		slist.PushFront(types.NewSample(metric, value, labels...))
-	}
-}
-
-func PushMeasurements(slist *list.SafeList, measurement string, fields map[string]interface{}, labels ...map[string]string) {
-	for metric, value := range fields {
-		slist.PushFront(types.NewSample(measurement+"_"+metric, value, labels...))
-	}
-}

inputs/rabbitmq/rabbitmq.go

@@ -14,13 +14,12 @@ import (
 	"flashcat.cloud/categraf/pkg/filter"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "rabbitmq"
 
 type RabbitMQ struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -30,10 +29,9 @@ func init() {
 	})
 }
 
-func (r *RabbitMQ) Prefix() string              { return inputName }
-func (r *RabbitMQ) Init() error                 { return nil }
-func (r *RabbitMQ) Drop()                       {}
-func (r *RabbitMQ) Gather(slist *list.SafeList) {}
+func (r *RabbitMQ) Init() error                    { return nil }
+func (r *RabbitMQ) Drop()                          {}
+func (r *RabbitMQ) Gather(slist *types.SampleList) {}
 
 func (r *RabbitMQ) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -336,7 +334,7 @@ type ErrorResponse struct {
 }
 
 // gatherFunc ...
-type gatherFunc func(ins *Instance, slist *list.SafeList)
+type gatherFunc func(ins *Instance, slist *types.SampleList)
 
 var gatherFunctions = map[string]gatherFunc{
 	"exchange":   gatherExchanges,
@@ -346,7 +344,7 @@ var gatherFunctions = map[string]gatherFunc{
 	"queue":      gatherQueues,
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	tags := map[string]string{"url": ins.URL}
 
 	begun := time.Now()
@@ -354,7 +352,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use, tags, ins.Labels))
+		slist.PushFront(types.NewSample(inputName, "scrape_use_seconds", use, tags))
 	}(begun)
 
 	var wg sync.WaitGroup
@@ -422,7 +420,7 @@ func (ins *Instance) requestJSON(u string, target interface{}) error {
 	return nil
 }
 
-func gatherOverview(ins *Instance, slist *list.SafeList) {
+func gatherOverview(ins *Instance, slist *types.SampleList) {
 	overview := OverviewResponse{}
 
 	err := ins.requestJSON("/api/overview", &overview)
@@ -446,9 +444,6 @@ func gatherOverview(ins *Instance, slist *list.SafeList) {
 	}
 
 	tags := map[string]string{"url": ins.URL}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
 
 	fields := map[string]interface{}{
 		"overview_messages":                  overview.QueueTotals.Messages,
@@ -473,10 +468,10 @@ func gatherOverview(ins *Instance, slist *list.SafeList) {
 		"overview_return_unroutable_rate":    overview.MessageStats.ReturnUnroutableDetails.Rate,
 	}
 
-	inputs.PushSamples(slist, fields, tags)
+	slist.PushSamples(inputName, fields, tags)
 }
 
-func gatherExchanges(ins *Instance, slist *list.SafeList) {
+func gatherExchanges(ins *Instance, slist *types.SampleList) {
 	// Gather information about exchanges
 	exchanges := make([]Exchange, 0)
 	err := ins.requestJSON("/api/exchanges", &exchanges)
@@ -499,10 +494,6 @@ func gatherExchanges(ins *Instance, slist *list.SafeList) {
 			// "auto_delete": strconv.FormatBool(exchange.AutoDelete),
 		}
 
-		for k, v := range ins.Labels {
-			tags[k] = v
-		}
-
 		fields := map[string]interface{}{
 			"exchange_messages_publish_in":       exchange.MessageStats.PublishIn,
 			"exchange_messages_publish_in_rate":  exchange.MessageStats.PublishInDetails.Rate,
@@ -510,7 +501,7 @@ func gatherExchanges(ins *Instance, slist *list.SafeList) {
 			"exchange_messages_publish_out_rate": exchange.MessageStats.PublishOutDetails.Rate,
 		}
 
-		inputs.PushSamples(slist, fields, tags)
+		slist.PushSamples(inputName, fields, tags)
 	}
 }
 
@@ -528,7 +519,7 @@ func (ins *Instance) shouldGatherExchange(exchangeName string) bool {
 	return false
 }
 
-func gatherFederationLinks(ins *Instance, slist *list.SafeList) {
+func gatherFederationLinks(ins *Instance, slist *types.SampleList) {
 	// Gather information about federation links
 	federationLinks := make([]FederationLink, 0)
 	err := ins.requestJSON("/api/federation-links", &federationLinks)
@@ -568,7 +559,7 @@ func gatherFederationLinks(ins *Instance, slist *list.SafeList) {
 			"federation_messages_return_unroutable": link.LocalChannel.MessageStats.ReturnUnroutable,
 		}
 
-		inputs.PushSamples(slist, fields, tags, ins.Labels)
+		slist.PushSamples(inputName, fields, tags)
 	}
 }
 
@@ -587,7 +578,7 @@ func (ins *Instance) shouldGatherFederationLink(link FederationLink) bool {
 	}
 }
 
-func gatherNodes(ins *Instance, slist *list.SafeList) {
+func gatherNodes(ins *Instance, slist *types.SampleList) {
 	allNodes := make([]*Node, 0)
 
 	err := ins.requestJSON("/api/nodes", &allNodes)
@@ -698,7 +689,7 @@ func gatherNodes(ins *Instance, slist *list.SafeList) {
 				}
 			}
 
-			inputs.PushSamples(slist, fields, tags, ins.Labels)
+			slist.PushSamples(inputName, fields, tags)
 		}(node)
 	}
 
@@ -726,7 +717,7 @@ func boolToInt(b bool) int64 {
 	return 0
 }
 
-func gatherQueues(ins *Instance, slist *list.SafeList) {
+func gatherQueues(ins *Instance, slist *types.SampleList) {
 	if ins.excludeEveryQueue {
 		return
 	}
@@ -782,6 +773,6 @@ func gatherQueues(ins *Instance, slist *list.SafeList) {
 			"queue_messages_redeliver_rate":   queue.MessageStats.RedeliverDetails.Rate,
 		}
 
-		inputs.PushSamples(slist, fields, tags, ins.Labels)
+		slist.PushSamples(inputName, fields, tags)
 	}
 }

inputs/redis/redis.go

@@ -16,7 +16,6 @@ import (
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
 	"github.com/go-redis/redis/v8"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "redis"
@@ -66,7 +65,7 @@ func (ins *Instance) Init() error {
 }
 
 type Redis struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -76,9 +75,8 @@ func init() {
 	})
 }
 
-func (r *Redis) Prefix() string              { return inputName }
-func (r *Redis) Init() error                 { return nil }
-func (r *Redis) Gather(slist *list.SafeList) {}
+func (r *Redis) Init() error                    { return nil }
+func (r *Redis) Gather(slist *types.SampleList) {}
 
 func (r *Redis) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -96,36 +94,32 @@ func (r *Redis) Drop() {
 	}
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	tags := map[string]string{"address": ins.Address}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
-
 	begun := time.Now()
 
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use, tags))
+		slist.PushFront(types.NewSample(inputName, "scrape_use_seconds", use, tags))
 	}(begun)
 
 	// ping
 	err := ins.client.Ping(context.Background()).Err()
-	slist.PushFront(types.NewSample("ping_use_seconds", time.Since(begun).Seconds(), tags))
+	slist.PushFront(types.NewSample(inputName, "ping_use_seconds", time.Since(begun).Seconds(), tags))
 	if err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 0, tags))
 		log.Println("E! failed to ping redis:", ins.Address, "error:", err)
 		return
 	} else {
-		slist.PushFront(types.NewSample("up", 1, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 1, tags))
 	}
 
 	ins.gatherInfoAll(slist, tags)
 	ins.gatherCommandValues(slist, tags)
 }
 
-func (ins *Instance) gatherCommandValues(slist *list.SafeList, tags map[string]string) {
+func (ins *Instance) gatherCommandValues(slist *types.SampleList, tags map[string]string) {
 	fields := make(map[string]interface{})
 	for _, cmd := range ins.Commands {
 		val, err := ins.client.Do(context.Background(), cmd.Command...).Result()
@@ -144,11 +138,11 @@ func (ins *Instance) gatherCommandValues(slist *list.SafeList, tags map[string]s
 	}
 
 	for k, v := range fields {
-		slist.PushFront(types.NewSample("exec_result_"+k, v, tags))
+		slist.PushFront(types.NewSample(inputName, "exec_result_"+k, v, tags))
 	}
 }
 
-func (ins *Instance) gatherInfoAll(slist *list.SafeList, tags map[string]string) {
+func (ins *Instance) gatherInfoAll(slist *types.SampleList, tags map[string]string) {
 	info, err := ins.client.Info(context.Background(), "ALL").Result()
 	if err != nil {
 		info, err = ins.client.Info(context.Background()).Result()
@@ -267,7 +261,7 @@ func (ins *Instance) gatherInfoAll(slist *list.SafeList, tags map[string]string)
 	fields["keyspace_hitrate"] = keyspaceHitrate
 
 	for k, v := range fields {
-		slist.PushFront(types.NewSample(k, v, tags))
+		slist.PushFront(types.NewSample(inputName, k, v, tags))
 	}
 }
 
@@ -278,7 +272,7 @@ func (ins *Instance) gatherInfoAll(slist *list.SafeList, tags map[string]string)
 func gatherKeyspaceLine(
 	name string,
 	line string,
-	slist *list.SafeList,
+	slist *types.SampleList,
 	globalTags map[string]string,
 ) {
 	if strings.Contains(line, "keys=") {
@@ -298,7 +292,7 @@ func gatherKeyspaceLine(
 		}
 
 		for k, v := range fields {
-			slist.PushFront(types.NewSample("keyspace_"+k, v, tags))
+			slist.PushFront(types.NewSample(inputName, "keyspace_"+k, v, tags))
 		}
 	}
 }
@@ -310,7 +304,7 @@ func gatherKeyspaceLine(
 func gatherCommandstateLine(
 	name string,
 	line string,
-	slist *list.SafeList,
+	slist *types.SampleList,
 	globalTags map[string]string,
 ) {
 	if !strings.HasPrefix(name, "cmdstat") {
@@ -347,7 +341,7 @@ func gatherCommandstateLine(
 	}
 
 	for k, v := range fields {
-		slist.PushFront(types.NewSample("cmdstat_"+k, v, tags))
+		slist.PushFront(types.NewSample(inputName, "cmdstat_"+k, v, tags))
 	}
 }
 
@@ -358,7 +352,7 @@ func gatherCommandstateLine(
 func gatherReplicationLine(
 	name string,
 	line string,
-	slist *list.SafeList,
+	slist *types.SampleList,
 	globalTags map[string]string,
 ) {
 	fields := make(map[string]interface{})
@@ -393,6 +387,6 @@ func gatherReplicationLine(
 	}
 
 	for k, v := range fields {
-		slist.PushFront(types.NewSample("replication_"+k, v, tags))
+		slist.PushFront(types.NewSample(inputName, "replication_"+k, v, tags))
 	}
 }

inputs/redis_sentinel/redis_sentinel.go

@@ -16,7 +16,6 @@ import (
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
 	"github.com/go-redis/redis/v8"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "redis_sentinel"
@@ -26,7 +25,7 @@ const measurementSentinels = "redis_sentinel_sentinels"
 const measurementReplicas = "redis_sentinel_replicas"
 
 type RedisSentinel struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -36,10 +35,9 @@ func init() {
 	})
 }
 
-func (r *RedisSentinel) Prefix() string              { return "" }
-func (r *RedisSentinel) Init() error                 { return nil }
-func (r *RedisSentinel) Drop()                       {}
-func (r *RedisSentinel) Gather(slist *list.SafeList) {}
+func (r *RedisSentinel) Init() error                    { return nil }
+func (r *RedisSentinel) Drop()                          {}
+func (r *RedisSentinel) Gather(slist *types.SampleList) {}
 
 func (r *RedisSentinel) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(r.Instances))
@@ -118,13 +116,13 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	var wg sync.WaitGroup
 
 	for _, client := range ins.clients {
 		wg.Add(1)
 
-		go func(slist *list.SafeList, client *RedisSentinelClient) {
+		go func(slist *types.SampleList, client *RedisSentinelClient) {
 			defer wg.Done()
 
 			masters, err := client.gatherMasterStats(slist)
@@ -150,7 +148,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (client *RedisSentinelClient) gatherInfoStats(slist *list.SafeList) error {
+func (client *RedisSentinelClient) gatherInfoStats(slist *types.SampleList) error {
 	infoCmd := redis.NewStringCmd(context.Background(), "info", "all")
 	if err := client.sentinel.Process(context.Background(), infoCmd); err != nil {
 		return err
@@ -167,7 +165,7 @@ func (client *RedisSentinelClient) gatherInfoStats(slist *list.SafeList) error {
 		return err
 	}
 
-	inputs.PushMeasurements(slist, measurementSentinel, infoFields, infoTags)
+	slist.PushSamples(measurementSentinel, infoFields, infoTags)
 
 	return nil
 }
@@ -228,7 +226,7 @@ func convertSentinelInfoOutput(
 	return tags, fields, nil
 }
 
-func (client *RedisSentinelClient) gatherSentinelStats(slist *list.SafeList, masterName string) error {
+func (client *RedisSentinelClient) gatherSentinelStats(slist *types.SampleList, masterName string) error {
 	sentinelsCmd := redis.NewSliceCmd(context.Background(), "sentinel", "sentinels", masterName)
 	if err := client.sentinel.Process(context.Background(), sentinelsCmd); err != nil {
 		return err
@@ -254,7 +252,7 @@ func (client *RedisSentinelClient) gatherSentinelStats(slist *list.SafeList, mas
 			return err
 		}
 
-		inputs.PushMeasurements(slist, measurementSentinels, sentinelFields, sentinelTags)
+		slist.PushSamples(measurementSentinels, sentinelFields, sentinelTags)
 	}
 
 	return nil
@@ -280,7 +278,7 @@ func convertSentinelSentinelsOutput(
 	return tags, fields, nil
 }
 
-func (client *RedisSentinelClient) gatherReplicaStats(slist *list.SafeList, masterName string) error {
+func (client *RedisSentinelClient) gatherReplicaStats(slist *types.SampleList, masterName string) error {
 	replicasCmd := redis.NewSliceCmd(context.Background(), "sentinel", "replicas", masterName)
 	if err := client.sentinel.Process(context.Background(), replicasCmd); err != nil {
 		return err
@@ -306,7 +304,7 @@ func (client *RedisSentinelClient) gatherReplicaStats(slist *list.SafeList, mast
 			return err
 		}
 
-		inputs.PushMeasurements(slist, measurementReplicas, replicaFields, replicaTags)
+		slist.PushSamples(measurementReplicas, replicaFields, replicaTags)
 	}
 
 	return nil
@@ -332,7 +330,7 @@ func convertSentinelReplicaOutput(
 	return tags, fields, nil
 }
 
-func (client *RedisSentinelClient) gatherMasterStats(slist *list.SafeList) ([]string, error) {
+func (client *RedisSentinelClient) gatherMasterStats(slist *types.SampleList) ([]string, error) {
 	var masterNames []string
 
 	mastersCmd := redis.NewSliceCmd(context.Background(), "sentinel", "masters")
@@ -369,7 +367,7 @@ func (client *RedisSentinelClient) gatherMasterStats(slist *list.SafeList) ([]st
 			return masterNames, err
 		}
 
-		inputs.PushMeasurements(slist, measurementMasters, sentinelMastersFields, sentinelMastersTags)
+		slist.PushSamples(measurementMasters, sentinelMastersFields, sentinelMastersTags)
 	}
 
 	return masterNames, nil

inputs/switch_legacy/switch_legacy.go

@@ -15,14 +15,13 @@ import (
 	"github.com/gaochao1/sw"
 	cmap "github.com/orcaman/concurrent-map"
 	"github.com/toolkits/pkg/concurrent/semaphore"
-	"github.com/toolkits/pkg/container/list"
 	go_snmp "github.com/ulricqin/gosnmp"
 )
 
 const inputName = "switch_legacy"
 
 type Switch struct {
-	config.Interval
+	config.PluginConfig
 	Instances     []*Instance       `toml:"instances"`
 	SwitchIdLabel string            `toml:"switch_id_label"`
 	Mappings      map[string]string `toml:"mappings"`
@@ -34,9 +33,8 @@ func init() {
 	})
 }
 
-func (s *Switch) Prefix() string              { return inputName }
-func (s *Switch) Drop()                       {}
-func (s *Switch) Gather(slist *list.SafeList) {}
+func (s *Switch) Drop()                          {}
+func (s *Switch) Gather(slist *types.SampleList) {}
 
 func (s *Switch) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(s.Instances))
@@ -132,7 +130,7 @@ func (ins *Instance) RealInit() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	ips := ins.parseIPs()
 	if len(ips) == 0 {
 		return
@@ -166,7 +164,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	}
 }
 
-func (ins *Instance) gatherCustoms(ips []string, slist *list.SafeList) {
+func (ins *Instance) gatherCustoms(ips []string, slist *types.SampleList) {
 	wg := new(sync.WaitGroup)
 
 	for i := 0; i < len(ips); i++ {
@@ -180,7 +178,7 @@ func (ins *Instance) gatherCustoms(ips []string, slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) custstat(wg *sync.WaitGroup, ip string, slist *list.SafeList, cust Custom) {
+func (ins *Instance) custstat(wg *sync.WaitGroup, ip string, slist *types.SampleList, cust Custom) {
 	defer wg.Done()
 
 	defer func() {
@@ -197,7 +195,7 @@ func (ins *Instance) custstat(wg *sync.WaitGroup, ip string, slist *list.SafeLis
 		if len(snmpPDUs) > 0 && err == nil {
 			value, err = conv.ToFloat64(snmpPDUs[0].Value)
 			if err == nil {
-				slist.PushFront(types.NewSample(cust.Metric, value, cust.Tags, ins.Labels))
+				slist.PushFront(types.NewSample(inputName, cust.Metric, value, cust.Tags))
 			} else {
 				log.Println("E! failed to convert to float64, ip:", ip, "oid:", cust.OID, "value:", snmpPDUs[0].Value)
 			}
@@ -207,7 +205,7 @@ func (ins *Instance) custstat(wg *sync.WaitGroup, ip string, slist *list.SafeLis
 	}
 }
 
-func (ins *Instance) gatherMemMetrics(ips []string, slist *list.SafeList) {
+func (ins *Instance) gatherMemMetrics(ips []string, slist *types.SampleList) {
 	result := cmap.New()
 	for i := 0; i < len(ips); i++ {
 		result.Set(ips[i], -1.0)
@@ -232,7 +230,7 @@ func (ins *Instance) gatherMemMetrics(ips []string, slist *list.SafeList) {
 		if utilPercent < 0 {
 			continue
 		}
-		slist.PushFront(types.NewSample("mem_util", utilPercent, map[string]string{ins.parent.SwitchIdLabel: ip}, ins.Labels))
+		slist.PushFront(types.NewSample(inputName, "mem_util", utilPercent, map[string]string{ins.parent.SwitchIdLabel: ip}))
 	}
 }
 
@@ -251,7 +249,7 @@ func (ins *Instance) memstat(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip s
 	result.Set(ip, float64(utilPercent))
 }
 
-func (ins *Instance) gatherCpuMetrics(ips []string, slist *list.SafeList) {
+func (ins *Instance) gatherCpuMetrics(ips []string, slist *types.SampleList) {
 	result := cmap.New()
 	for i := 0; i < len(ips); i++ {
 		result.Set(ips[i], -1.0)
@@ -277,7 +275,7 @@ func (ins *Instance) gatherCpuMetrics(ips []string, slist *list.SafeList) {
 			continue
 		}
 
-		slist.PushFront(types.NewSample("cpu_util", utilPercent, map[string]string{ins.parent.SwitchIdLabel: ip}, ins.Labels))
+		slist.PushFront(types.NewSample(inputName, "cpu_util", utilPercent, map[string]string{ins.parent.SwitchIdLabel: ip}))
 	}
 }
 
@@ -302,7 +300,7 @@ type ChIfStat struct {
 	IfStatsList []sw.IfStats
 }
 
-func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
+func (ins *Instance) gatherFlowMetrics(ips []string, slist *types.SampleList) {
 	result := cmap.New()
 	for i := 0; i < len(ips); i++ {
 		result.Set(ips[i], nil)
@@ -353,15 +351,11 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 				tags["ifindex"] = fmt.Sprint(ifStat.IfIndex)
 			}
 
-			for k, v := range ins.Labels {
-				tags[k] = v
-			}
-
 			if ins.GatherOperStatus {
-				slist.PushFront(types.NewSample("if_oper_status", ifStat.IfOperStatus, tags))
+				slist.PushFront(types.NewSample(inputName, "if_oper_status", ifStat.IfOperStatus, tags))
 			}
 
-			slist.PushFront(types.NewSample("if_speed", ifStat.IfSpeed, tags))
+			slist.PushFront(types.NewSample(inputName, "if_speed", ifStat.IfSpeed, tags))
 
 			if lastIfStatList := ins.lastifmap.Get(ip); lastIfStatList != nil {
 				for _, lastifStat := range lastIfStatList {
@@ -377,18 +371,18 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 						IfHCOutOctets := 8 * (float64(ifStat.IfHCOutOctets) - float64(lastifStat.IfHCOutOctets)) / float64(interval)
 
 						if limitCheck(IfHCInOctets, speedlimit) {
-							slist.PushFront(types.NewSample("if_in", IfHCInOctets, tags))
+							slist.PushFront(types.NewSample(inputName, "if_in", IfHCInOctets, tags))
 							if ifStat.IfSpeed > 0 {
-								slist.PushFront(types.NewSample("if_in_speed_percent", 100*IfHCInOctets/float64(ifStat.IfSpeed), tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_speed_percent", 100*IfHCInOctets/float64(ifStat.IfSpeed), tags))
 							}
 						} else {
 							log.Println("W! if_in out of range, current:", ifStat.IfHCInOctets, "lasttime:", lastifStat.IfHCInOctets, "tags:", tags)
 						}
 
 						if limitCheck(IfHCOutOctets, speedlimit) {
-							slist.PushFront(types.NewSample("if_out", IfHCOutOctets, tags))
+							slist.PushFront(types.NewSample(inputName, "if_out", IfHCOutOctets, tags))
 							if ifStat.IfSpeed > 0 {
-								slist.PushFront(types.NewSample("if_out_speed_percent", 100*IfHCOutOctets/float64(ifStat.IfSpeed), tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_speed_percent", 100*IfHCOutOctets/float64(ifStat.IfSpeed), tags))
 							}
 						} else {
 							log.Println("W! if_out out of range, current:", ifStat.IfHCOutOctets, "lasttime:", lastifStat.IfHCOutOctets, "tags:", tags)
@@ -407,13 +401,13 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							IfHCOutBroadcastPkts := (float64(ifStat.IfHCOutBroadcastPkts) - float64(lastifStat.IfHCOutBroadcastPkts)) / float64(interval)
 
 							if limitCheck(IfHCInBroadcastPkts, ins.BroadcastPktLimit) {
-								slist.PushFront(types.NewSample("if_in_broadcast_pkt", IfHCInBroadcastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_broadcast_pkt", IfHCInBroadcastPkts, tags))
 							} else {
 								log.Println("W! if_in_broadcast_pkt out of range, current:", ifStat.IfHCInBroadcastPkts, "lasttime:", lastifStat.IfHCInBroadcastPkts, "tags:", tags)
 							}
 
 							if limitCheck(IfHCOutBroadcastPkts, ins.BroadcastPktLimit) {
-								slist.PushFront(types.NewSample("if_out_broadcast_pkt", IfHCOutBroadcastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_broadcast_pkt", IfHCOutBroadcastPkts, tags))
 							} else {
 								log.Println("W! if_out_broadcast_pkt out of range, current:", ifStat.IfHCOutBroadcastPkts, "lasttime:", lastifStat.IfHCOutBroadcastPkts, "tags:", tags)
 							}
@@ -432,13 +426,13 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							IfHCOutMulticastPkts := (float64(ifStat.IfHCOutMulticastPkts) - float64(lastifStat.IfHCOutMulticastPkts)) / float64(interval)
 
 							if limitCheck(IfHCInMulticastPkts, ins.MulticastPktLimit) {
-								slist.PushFront(types.NewSample("if_in_multicast_pkt", IfHCInMulticastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_multicast_pkt", IfHCInMulticastPkts, tags))
 							} else {
 								log.Println("W! if_in_multicast_pkt out of range, current:", ifStat.IfHCInMulticastPkts, "lasttime:", lastifStat.IfHCInMulticastPkts, "tags:", tags)
 							}
 
 							if limitCheck(IfHCOutMulticastPkts, ins.MulticastPktLimit) {
-								slist.PushFront(types.NewSample("if_out_multicast_pkt", IfHCOutMulticastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_multicast_pkt", IfHCOutMulticastPkts, tags))
 							} else {
 								log.Println("W! if_out_multicast_pkt out of range, current:", ifStat.IfHCOutMulticastPkts, "lasttime:", lastifStat.IfHCOutMulticastPkts, "tags:", tags)
 							}
@@ -457,13 +451,13 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							IfOutDiscards := (float64(ifStat.IfOutDiscards) - float64(lastifStat.IfOutDiscards)) / float64(interval)
 
 							if limitCheck(IfInDiscards, ins.DiscardsPktLimit) {
-								slist.PushFront(types.NewSample("if_in_discards", IfInDiscards, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_discards", IfInDiscards, tags))
 							} else {
 								log.Println("W! if_in_discards out of range, current:", ifStat.IfInDiscards, "lasttime:", lastifStat.IfInDiscards, "tags:", tags)
 							}
 
 							if limitCheck(IfOutDiscards, ins.DiscardsPktLimit) {
-								slist.PushFront(types.NewSample("if_out_discards", IfOutDiscards, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_discards", IfOutDiscards, tags))
 							} else {
 								log.Println("W! if_out_discards out of range, current:", ifStat.IfOutDiscards, "lasttime:", lastifStat.IfOutDiscards, "tags:", tags)
 							}
@@ -482,13 +476,13 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							IfOutErrors := (float64(ifStat.IfOutErrors) - float64(lastifStat.IfOutErrors)) / float64(interval)
 
 							if limitCheck(IfInErrors, ins.ErrorsPktLimit) {
-								slist.PushFront(types.NewSample("if_in_errors", IfInErrors, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_errors", IfInErrors, tags))
 							} else {
 								log.Println("W! if_in_errors out of range, current:", ifStat.IfInErrors, "lasttime:", lastifStat.IfInErrors, "tags:", tags)
 							}
 
 							if limitCheck(IfOutErrors, ins.ErrorsPktLimit) {
-								slist.PushFront(types.NewSample("if_out_errors", IfOutErrors, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_errors", IfOutErrors, tags))
 							} else {
 								log.Println("W! if_out_errors out of range, current:", ifStat.IfOutErrors, "lasttime:", lastifStat.IfOutErrors, "tags:", tags)
 							}
@@ -504,7 +498,7 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							interval := ifStat.TS - lastifStat.TS
 							IfInUnknownProtos := (float64(ifStat.IfInUnknownProtos) - float64(lastifStat.IfInUnknownProtos)) / float64(interval)
 							if limitCheck(IfInUnknownProtos, ins.UnknownProtosPktLimit) {
-								slist.PushFront(types.NewSample("if_in_unknown_protos", IfInUnknownProtos, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_unknown_protos", IfInUnknownProtos, tags))
 							} else {
 								log.Println("W! if_in_unknown_protos out of range, current:", ifStat.IfInUnknownProtos, "lasttime:", lastifStat.IfInUnknownProtos, "tags:", tags)
 							}
@@ -520,7 +514,7 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							interval := ifStat.TS - lastifStat.TS
 							IfOutQLen := (float64(ifStat.IfOutQLen) - float64(lastifStat.IfOutQLen)) / float64(interval)
 							if limitCheck(IfOutQLen, ins.OutQlenPktLimit) {
-								slist.PushFront(types.NewSample("if_out_qlen", IfOutQLen, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_qlen", IfOutQLen, tags))
 							} else {
 								log.Println("W! if_out_qlen out of range, current:", ifStat.IfOutQLen, "lasttime:", lastifStat.IfOutQLen, "tags:", tags)
 							}
@@ -539,13 +533,13 @@ func (ins *Instance) gatherFlowMetrics(ips []string, slist *list.SafeList) {
 							IfHCOutUcastPkts := (float64(ifStat.IfHCOutUcastPkts) - float64(lastifStat.IfHCOutUcastPkts)) / float64(interval)
 
 							if limitCheck(IfHCInUcastPkts, ins.PktLimit) {
-								slist.PushFront(types.NewSample("if_in_pkts", IfHCInUcastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_in_pkts", IfHCInUcastPkts, tags))
 							} else {
 								log.Println("W! if_in_pkts out of range, current:", ifStat.IfHCInUcastPkts, "lasttime:", lastifStat.IfHCInUcastPkts, "tags:", tags)
 							}
 
 							if limitCheck(IfHCOutUcastPkts, ins.PktLimit) {
-								slist.PushFront(types.NewSample("if_out_pkts", IfHCOutUcastPkts, tags))
+								slist.PushFront(types.NewSample(inputName, "if_out_pkts", IfHCOutUcastPkts, tags))
 							} else {
 								log.Println("W! if_out_pkts out of range, current:", ifStat.IfHCOutUcastPkts, "lasttime:", lastifStat.IfHCOutUcastPkts, "tags:", tags)
 							}
@@ -593,7 +587,7 @@ func (ins *Instance) ifstat(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip st
 	}
 }
 
-func (ins *Instance) gatherPing(ips []string, slist *list.SafeList) []string {
+func (ins *Instance) gatherPing(ips []string, slist *types.SampleList) []string {
 	pingResult := cmap.New()
 	for i := 0; i < len(ips); i++ {
 		// init ping result
@@ -620,7 +614,7 @@ func (ins *Instance) gatherPing(ips []string, slist *list.SafeList) []string {
 		}
 
 		if ins.GatherPingMetrics {
-			slist.PushFront(types.NewSample("ping_up", val, map[string]string{ins.parent.SwitchIdLabel: ip}, ins.Labels))
+			slist.PushFront(types.NewSample(inputName, "ping_up", val, map[string]string{ins.parent.SwitchIdLabel: ip}))
 		}
 	}
 

inputs/system/system.go

@@ -7,16 +7,16 @@ import (
 
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
+	"flashcat.cloud/categraf/types"
 	"github.com/shirou/gopsutil/v3/cpu"
 	"github.com/shirou/gopsutil/v3/host"
 	"github.com/shirou/gopsutil/v3/load"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "system"
 
 type SystemStats struct {
-	config.Interval
+	config.PluginConfig
 	CollectUserNumber bool `toml:"collect_user_number"`
 }
 
@@ -26,12 +26,11 @@ func init() {
 	})
 }
 
-func (s *SystemStats) Prefix() string                  { return inputName }
 func (s *SystemStats) Init() error                     { return nil }
 func (s *SystemStats) Drop()                           {}
 func (s *SystemStats) GetInstances() []inputs.Instance { return nil }
 
-func (s *SystemStats) Gather(slist *list.SafeList) {
+func (s *SystemStats) Gather(slist *types.SampleList) {
 	loadavg, err := load.Avg()
 	if err != nil && !strings.Contains(err.Error(), "not implemented") {
 		log.Println("E! failed to gather system load:", err)
@@ -72,5 +71,5 @@ func (s *SystemStats) Gather(slist *list.SafeList) {
 		}
 	}
 
-	inputs.PushSamples(slist, fields)
+	slist.PushSamples(inputName, fields)
 }

inputs/tomcat/tomcat.go

@@ -12,7 +12,6 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const inputName = "tomcat"
@@ -130,7 +129,7 @@ func (ins *Instance) createHTTPClient() (*http.Client, error) {
 }
 
 type Tomcat struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -140,10 +139,9 @@ func init() {
 	})
 }
 
-func (t *Tomcat) Prefix() string              { return inputName }
-func (t *Tomcat) Init() error                 { return nil }
-func (t *Tomcat) Drop()                       {}
-func (t *Tomcat) Gather(slist *list.SafeList) {}
+func (t *Tomcat) Init() error                    { return nil }
+func (t *Tomcat) Drop()                          {}
+func (t *Tomcat) Gather(slist *types.SampleList) {}
 
 func (t *Tomcat) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(t.Instances))
@@ -153,30 +151,26 @@ func (t *Tomcat) GetInstances() []inputs.Instance {
 	return ret
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	tags := map[string]string{"url": ins.URL}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
-
 	begun := time.Now()
 
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("scrape_use_seconds", use, tags))
+		slist.PushFront(types.NewSample(inputName, "scrape_use_seconds", use, tags))
 	}(begun)
 
 	// url cannot connect? up = 0
 	resp, err := ins.client.Do(ins.request)
 	if err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 0, tags))
 		log.Println("E! failed to query tomcat url:", err)
 		return
 	}
 
 	if resp.StatusCode != http.StatusOK {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 0, tags))
 		log.Println("E! received HTTP status code:", resp.StatusCode, "expected: 200")
 		return
 	}
@@ -185,16 +179,16 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 
 	var status TomcatStatus
 	if err := xml.NewDecoder(resp.Body).Decode(&status); err != nil {
-		slist.PushFront(types.NewSample("up", 0, tags))
+		slist.PushFront(types.NewSample(inputName, "up", 0, tags))
 		log.Println("E! failed to decode response body:", err)
 		return
 	}
 
-	slist.PushFront(types.NewSample("up", 1, tags))
+	slist.PushFront(types.NewSample(inputName, "up", 1, tags))
 
-	slist.PushFront(types.NewSample("jvm_memory_free", status.TomcatJvm.JvmMemory.Free, tags))
-	slist.PushFront(types.NewSample("jvm_memory_total", status.TomcatJvm.JvmMemory.Total, tags))
-	slist.PushFront(types.NewSample("jvm_memory_max", status.TomcatJvm.JvmMemory.Max, tags))
+	slist.PushFront(types.NewSample(inputName, "jvm_memory_free", status.TomcatJvm.JvmMemory.Free, tags))
+	slist.PushFront(types.NewSample(inputName, "jvm_memory_total", status.TomcatJvm.JvmMemory.Total, tags))
+	slist.PushFront(types.NewSample(inputName, "jvm_memory_max", status.TomcatJvm.JvmMemory.Max, tags))
 
 	// add tomcat_jvm_memorypool measurements
 	for _, mp := range status.TomcatJvm.JvmMemoryPools {
@@ -210,7 +204,7 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 			"jvm_memorypool_used":      mp.UsageUsed,
 		}
 
-		inputs.PushSamples(slist, tcmpFields, tags, tcmpTags)
+		slist.PushSamples(inputName, tcmpFields, tags, tcmpTags)
 	}
 
 	// add tomcat_connector measurements
@@ -236,6 +230,6 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 			"connector_bytes_sent":           c.RequestInfo.BytesSent,
 		}
 
-		inputs.PushSamples(slist, tccFields, tags, tccTags)
+		slist.PushSamples(inputName, tccFields, tags, tccTags)
 	}
 }

inputs/tpl/tpl.go

@@ -3,13 +3,13 @@ package tpl
 import (
 	"flashcat.cloud/categraf/config"
 	"flashcat.cloud/categraf/inputs"
-	"github.com/toolkits/pkg/container/list"
+	"flashcat.cloud/categraf/types"
 )
 
 const inputName = "plugin_tpl"
 
 type PluginTpl struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -19,10 +19,10 @@ func init() {
 	})
 }
 
-func (pt *PluginTpl) Prefix() string              { return inputName }
-func (pt *PluginTpl) Init() error                 { return nil }
-func (pt *PluginTpl) Drop()                       {}
-func (pt *PluginTpl) Gather(slist *list.SafeList) {}
+func (pt *PluginTpl) Prefix() string                 { return inputName }
+func (pt *PluginTpl) Init() error                    { return nil }
+func (pt *PluginTpl) Drop()                          {}
+func (pt *PluginTpl) Gather(slist *types.SampleList) {}
 
 func (pt *PluginTpl) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(pt.Instances))
@@ -40,6 +40,6 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 
 }

inputs/zookeeper/zookeeper.go

@@ -16,7 +16,6 @@ import (
 	"flashcat.cloud/categraf/inputs"
 	"flashcat.cloud/categraf/pkg/tls"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 const (
@@ -62,7 +61,7 @@ func (ins *Instance) ZkConnect(host string) (net.Conn, error) {
 }
 
 type Zookeeper struct {
-	config.Interval
+	config.PluginConfig
 	Instances []*Instance `toml:"instances"`
 }
 
@@ -72,10 +71,9 @@ func init() {
 	})
 }
 
-func (z *Zookeeper) Prefix() string              { return "" }
-func (z *Zookeeper) Init() error                 { return nil }
-func (z *Zookeeper) Drop()                       {}
-func (z *Zookeeper) Gather(slist *list.SafeList) {}
+func (z *Zookeeper) Init() error                    { return nil }
+func (z *Zookeeper) Drop()                          {}
+func (z *Zookeeper) Gather(slist *types.SampleList) {}
 
 func (z *Zookeeper) GetInstances() []inputs.Instance {
 	ret := make([]inputs.Instance, len(z.Instances))
@@ -92,7 +90,7 @@ func (ins *Instance) Init() error {
 	return nil
 }
 
-func (ins *Instance) Gather(slist *list.SafeList) {
+func (ins *Instance) Gather(slist *types.SampleList) {
 	hosts := ins.ZkHosts()
 	if len(hosts) == 0 {
 		return
@@ -106,26 +104,22 @@ func (ins *Instance) Gather(slist *list.SafeList) {
 	wg.Wait()
 }
 
-func (ins *Instance) gatherOneHost(wg *sync.WaitGroup, slist *list.SafeList, zkHost string) {
+func (ins *Instance) gatherOneHost(wg *sync.WaitGroup, slist *types.SampleList, zkHost string) {
 	defer wg.Done()
 
 	tags := map[string]string{"zk_host": zkHost, "zk_cluster": ins.ClusterName}
-	for k, v := range ins.Labels {
-		tags[k] = v
-	}
-
 	begun := time.Now()
 
 	// scrape use seconds
 	defer func(begun time.Time) {
 		use := time.Since(begun).Seconds()
-		slist.PushFront(types.NewSample("zk_scrape_use_seconds", use, tags))
+		slist.PushFront(types.NewSample("", "zk_scrape_use_seconds", use, tags))
 	}(begun)
 
 	// zk_up
 	mntrConn, err := ins.ZkConnect(zkHost)
 	if err != nil {
-		slist.PushFront(types.NewSample("zk_up", 0, tags))
+		slist.PushFront(types.NewSample("", "zk_up", 0, tags))
 		log.Println("E! failed to connect zookeeper:", zkHost, "error:", err)
 		return
 	}
@@ -136,7 +130,7 @@ func (ins *Instance) gatherOneHost(wg *sync.WaitGroup, slist *list.SafeList, zkH
 	// zk_ruok
 	ruokConn, err := ins.ZkConnect(zkHost)
 	if err != nil {
-		slist.PushFront(types.NewSample("zk_ruok", 0, tags))
+		slist.PushFront(types.NewSample("", "zk_ruok", 0, tags))
 		log.Println("E! failed to connect zookeeper:", zkHost, "error:", err)
 		return
 	}
@@ -145,7 +139,7 @@ func (ins *Instance) gatherOneHost(wg *sync.WaitGroup, slist *list.SafeList, zkH
 	ins.gatherRuokResult(ruokConn, slist, tags)
 }
 
-func (ins *Instance) gatherMntrResult(conn net.Conn, slist *list.SafeList, globalTags map[string]string) {
+func (ins *Instance) gatherMntrResult(conn net.Conn, slist *types.SampleList, globalTags map[string]string) {
 	res := sendZookeeperCmd(conn, "mntr")
 
 	// get slice of strings from response, like 'zk_avg_latency 0'
@@ -153,16 +147,16 @@ func (ins *Instance) gatherMntrResult(conn net.Conn, slist *list.SafeList, globa
 
 	// 'mntr' command isn't allowed in zk config, log as warning
 	if strings.Contains(lines[0], cmdNotExecutedSffx) {
-		slist.PushFront(types.NewSample("zk_up", 0, globalTags))
+		slist.PushFront(types.NewSample("", "zk_up", 0, globalTags))
 		log.Printf(commandNotAllowedTmpl, "mntr", conn.RemoteAddr().String())
 		return
 	}
 
-	slist.PushFront(types.NewSample("zk_up", 1, globalTags))
+	slist.PushFront(types.NewSample("", "zk_up", 1, globalTags))
 
 	// skip instance if it in a leader only state and doesnt serving client requests
 	if lines[0] == instanceNotServingMessage {
-		slist.PushFront(types.NewSample("zk_server_leader", 1, globalTags))
+		slist.PushFront(types.NewSample("", "zk_server_leader", 1, globalTags))
 		return
 	}
 
@@ -183,17 +177,17 @@ func (ins *Instance) gatherMntrResult(conn net.Conn, slist *list.SafeList, globa
 		switch key {
 		case "zk_server_state":
 			if value == "leader" {
-				slist.PushFront(types.NewSample("zk_server_leader", 1, globalTags))
+				slist.PushFront(types.NewSample("", "zk_server_leader", 1, globalTags))
 			} else {
-				slist.PushFront(types.NewSample("zk_server_leader", 0, globalTags))
+				slist.PushFront(types.NewSample("", "zk_server_leader", 0, globalTags))
 			}
 
 		case "zk_version":
 			version := versionRE.ReplaceAllString(value, "$1")
-			slist.PushFront(types.NewSample("zk_version", 1, globalTags, map[string]string{"version": version}))
+			slist.PushFront(types.NewSample("", "zk_version", 1, globalTags, map[string]string{"version": version}))
 
 		case "zk_peer_state":
-			slist.PushFront(types.NewSample("zk_peer_state", 1, globalTags, map[string]string{"state": value}))
+			slist.PushFront(types.NewSample("", "zk_peer_state", 1, globalTags, map[string]string{"state": value}))
 
 		default:
 			var k string
@@ -205,23 +199,23 @@ func (ins *Instance) gatherMntrResult(conn net.Conn, slist *list.SafeList, globa
 			k = metricNameReplacer.Replace(key)
 			if strings.Contains(k, "{") {
 				labels := parseLabels(k)
-				slist.PushFront(types.NewSample(k, value, globalTags, labels))
+				slist.PushFront(types.NewSample("", k, value, globalTags, labels))
 			} else {
-				slist.PushFront(types.NewSample(k, value, globalTags))
+				slist.PushFront(types.NewSample("", k, value, globalTags))
 			}
 		}
 	}
 }
 
-func (ins *Instance) gatherRuokResult(conn net.Conn, slist *list.SafeList, globalTags map[string]string) {
+func (ins *Instance) gatherRuokResult(conn net.Conn, slist *types.SampleList, globalTags map[string]string) {
 	res := sendZookeeperCmd(conn, "ruok")
 	if res == "imok" {
-		slist.PushFront(types.NewSample("zk_ruok", 1, globalTags))
+		slist.PushFront(types.NewSample("", "zk_ruok", 1, globalTags))
 	} else {
 		if strings.Contains(res, cmdNotExecutedSffx) {
 			log.Printf(commandNotAllowedTmpl, "ruok", conn.RemoteAddr().String())
 		}
-		slist.PushFront(types.NewSample("zk_ruok", 0, globalTags))
+		slist.PushFront(types.NewSample("", "zk_ruok", 0, globalTags))
 	}
 }
 

parser/falcon/parser.go

@@ -3,11 +3,8 @@ package falcon
 import (
 	"encoding/json"
 	"strings"
-	"time"
 
-	"flashcat.cloud/categraf/pkg/conv"
 	"flashcat.cloud/categraf/types"
-	"github.com/toolkits/pkg/container/list"
 )
 
 // payload = [
@@ -40,7 +37,7 @@ func NewParser() *Parser {
 	return &Parser{}
 }
 
-func (p *Parser) Parse(input []byte, slist *list.SafeList) error {
+func (p *Parser) Parse(input []byte, slist *types.SampleList) error {
 	var samples []Sample
 
 	if input[0] == '[' {
@@ -57,14 +54,7 @@ func (p *Parser) Parse(input []byte, slist *list.SafeList) error {
 		samples = append(samples, s)
 	}
 
-	now := time.Now()
-
 	for i := 0; i < len(samples); i++ {
-		fv, err := conv.ToFloat64(samples[i].Value)
-		if err != nil {
-			continue
-		}
-
 		labels := make(map[string]string)
 		tagarr := strings.Split(samples[i].Tags, ",")
 		for j := 0; j < len(tagarr); j++ {
@@ -86,14 +76,7 @@ func (p *Parser) Parse(input []byte, slist *list.SafeList) error {
 			labels["endpoint"] = endpoint
 		}
 
-		item := &types.Sample{
-			Metric:    samples[i].Metric,
-			Value:     fv,
-			Labels:    labels,
-			Timestamp: now,
-		}
-
-		slist.PushFront(item)
+		slist.PushSample("", samples[i].Metric, samples[i].Value, labels)
 	}
 
 	return nil

parser/influx/parser.go

@@ -5,11 +5,9 @@ import (
 	"strings"
 	"time"
 
-	"flashcat.cloud/categraf/pkg/conv"
 	"flashcat.cloud/categraf/types"
 	"flashcat.cloud/categraf/types/metric"
 	"github.com/influxdata/line-protocol/v2/lineprotocol"
-	"github.com/toolkits/pkg/container/list"
 )
 
 // Parser is an InfluxDB Line Protocol parser that implements the
@@ -29,7 +27,7 @@ func NewParser() *Parser {
 	}
 }
 
-func (p *Parser) Parse(input []byte, slist *list.SafeList) error {
+func (p *Parser) Parse(input []byte, slist *types.SampleList) error {
 	metrics := make([]types.Metric, 0)
 	decoder := lineprotocol.NewDecoderWithBytes(input)
 
@@ -47,16 +45,7 @@ func (p *Parser) Parse(input []byte, slist *list.SafeList) error {
 		tags := m.Tags()
 		fields := m.Fields()
 		for k, v := range fields {
-			floatValue, err := conv.ToFloat64(v)
-			if err != nil {
-				continue
-			}
-
-			slist.PushFront(&types.Sample{
-				Metric: name + "_" + k,
-				Value:  floatValue,
-				Labels: tags,
-			})
+			slist.PushSample(name, k, v, tags)
 		}
 	}
 

parser/parser.go

@@ -1,7 +1,9 @@
 package parser
 
-import "github.com/toolkits/pkg/container/list"
+import (
+	"flashcat.cloud/categraf/types"
+)
 
 type Parser interface {
-	Parse(input []byte, slist *list.SafeList) error
+	Parse(input []byte, slist *types.SampleList) error
 }

parser/prometheus/parser.go

@@ -15,7 +15,6 @@ import (
 	"flashcat.cloud/categraf/types"
 	"github.com/matttproud/golang_protobuf_extensions/pbutil"
 	"github.com/prometheus/common/expfmt"
-	"github.com/toolkits/pkg/container/list"
 
 	dto "github.com/prometheus/client_model/go"
 )
@@ -38,7 +37,7 @@ func NewParser(namePrefix string, defaultTags map[string]string, header http.Hea
 	}
 }
 
-func (p *Parser) Parse(buf []byte, slist *list.SafeList) error {
+func (p *Parser) Parse(buf []byte, slist *types.SampleList) error {
 	var parser expfmt.TextParser
 
 	// parse even if the buffer begins with a newline
@@ -93,42 +92,42 @@ func (p *Parser) Parse(buf []byte, slist *list.SafeList) error {
 	return nil
 }
 
-func (p *Parser) HandleSummary(m *dto.Metric, tags map[string]string, metricName string, slist *list.SafeList) {
+func (p *Parser) HandleSummary(m *dto.Metric, tags map[string]string, metricName string, slist *types.SampleList) {
 	namePrefix := ""
 	if !strings.HasPrefix(metricName, p.NamePrefix) {
 		namePrefix = p.NamePrefix
 	}
-	slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "count"), float64(m.GetSummary().GetSampleCount()), tags))
-	slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "sum"), m.GetSummary().GetSampleSum(), tags))
+	slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "count"), float64(m.GetSummary().GetSampleCount()), tags))
+	slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "sum"), m.GetSummary().GetSampleSum(), tags))
 
 	for _, q := range m.GetSummary().Quantile {
-		slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName), q.GetValue(), tags, map[string]string{"quantile": fmt.Sprint(q.GetQuantile())}))
+		slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName), q.GetValue(), tags, map[string]string{"quantile": fmt.Sprint(q.GetQuantile())}))
 	}
 }
 
-func (p *Parser) HandleHistogram(m *dto.Metric, tags map[string]string, metricName string, slist *list.SafeList) {
+func (p *Parser) HandleHistogram(m *dto.Metric, tags map[string]string, metricName string, slist *types.SampleList) {
 	namePrefix := ""
 	if !strings.HasPrefix(metricName, p.NamePrefix) {
 		namePrefix = p.NamePrefix
 	}
-	slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "count"), float64(m.GetHistogram().GetSampleCount()), tags))
-	slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "sum"), m.GetHistogram().GetSampleSum(), tags))
-	slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "bucket"), float64(m.GetHistogram().GetSampleCount()), tags, map[string]string{"le": "+Inf"}))
+	slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "count"), float64(m.GetHistogram().GetSampleCount()), tags))
+	slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "sum"), m.GetHistogram().GetSampleSum(), tags))
+	slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "bucket"), float64(m.GetHistogram().GetSampleCount()), tags, map[string]string{"le": "+Inf"}))
 
 	for _, b := range m.GetHistogram().Bucket {
 		le := fmt.Sprint(b.GetUpperBound())
 		value := float64(b.GetCumulativeCount())
-		slist.PushFront(types.NewSample(prom.BuildMetric(namePrefix, metricName, "bucket"), value, tags, map[string]string{"le": le}))
+		slist.PushFront(types.NewSample("", prom.BuildMetric(namePrefix, metricName, "bucket"), value, tags, map[string]string{"le": le}))
 	}
 }
 
-func (p *Parser) handleGaugeCounter(m *dto.Metric, tags map[string]string, metricName string, slist *list.SafeList) {
+func (p *Parser) handleGaugeCounter(m *dto.Metric, tags map[string]string, metricName string, slist *types.SampleList) {
 	fields := getNameAndValue(m, metricName)
 	for metric, value := range fields {
 		if !strings.HasPrefix(metric, p.NamePrefix) {
-			slist.PushFront(types.NewSample(prom.BuildMetric(p.NamePrefix, metric, ""), value, tags))
+			slist.PushFront(types.NewSample("", prom.BuildMetric(p.NamePrefix, metric, ""), value, tags))
 		} else {
-			slist.PushFront(types.NewSample(prom.BuildMetric("", metric, ""), value, tags))
+			slist.PushFront(types.NewSample("", prom.BuildMetric("", metric, ""), value, tags))
 		}
 
 	}

types/sample.go

@@ -1,37 +1,30 @@
 package types
 
 import (
+	"strings"
 	"time"
-
-	"flashcat.cloud/categraf/pkg/conv"
 )
 
 type Sample struct {
 	Metric    string            `json:"metric"`
 	Timestamp time.Time         `json:"timestamp"`
-	Value     float64           `json:"value"`
+	Value     interface{}       `json:"value"`
 	Labels    map[string]string `json:"labels"`
 }
 
-func NewSample(metric string, value interface{}, labels ...map[string]string) *Sample {
-	floatValue, err := conv.ToFloat64(value)
-	if err != nil {
-		return nil
-	}
+var metricReplacer = strings.NewReplacer("-", "_", ".", "_", " ", "_", "'", "_", "\"", "_")
 
+func NewSample(prefix, metric string, value interface{}, labels ...map[string]string) *Sample {
 	s := &Sample{
 		Metric: metric,
-		Value:  floatValue,
+		Value:  value,
 		Labels: make(map[string]string),
 	}
 
-	for i := 0; i < len(labels); i++ {
-		for k, v := range labels[i] {
-			if v == "-" {
-				continue
-			}
-			s.Labels[k] = v
-		}
+	if len(prefix) > 0 {
+		s.Metric = prefix + "_" + metricReplacer.Replace(s.Metric)
+	} else {
+		s.Metric = metricReplacer.Replace(s.Metric)
 	}
 
 	return s

types/sample_list.go

@@ -0,0 +1,193 @@
+package types
+
+import (
+	"container/list"
+	"sync"
+)
+
+type SampleList struct {
+	sync.RWMutex
+	L *list.List
+}
+
+func NewSampleList() *SampleList {
+	return &SampleList{L: list.New()}
+}
+
+func (l *SampleList) PushSample(prefix, metric string, value interface{}, labels ...map[string]string) *list.Element {
+	l.Lock()
+	v := NewSample(prefix, metric, value, labels...)
+	e := l.L.PushFront(v)
+	l.Unlock()
+	return e
+}
+
+func (l *SampleList) PushSamples(prefix string, fields map[string]interface{}, labels ...map[string]string) {
+	l.Lock()
+	for metric, value := range fields {
+		v := NewSample(prefix, metric, value, labels...)
+		l.L.PushFront(v)
+	}
+	l.Unlock()
+}
+
+func (l *SampleList) PushFront(v *Sample) *list.Element {
+	l.Lock()
+	e := l.L.PushFront(v)
+	l.Unlock()
+	return e
+}
+
+func (l *SampleList) PushFrontBatch(vs []*Sample) {
+	l.Lock()
+	for i := 0; i < len(vs); i++ {
+		l.L.PushFront(vs[i])
+	}
+	l.Unlock()
+}
+
+func (l *SampleList) PopBack() *Sample {
+	l.Lock()
+
+	if elem := l.L.Back(); elem != nil {
+		item := l.L.Remove(elem)
+		l.Unlock()
+		v, ok := item.(*Sample)
+		if !ok {
+			return nil
+		}
+		return v
+	}
+
+	l.Unlock()
+	return nil
+}
+
+func (l *SampleList) PopBackBy(max int) []*Sample {
+	l.Lock()
+
+	count := l.len()
+	if count == 0 {
+		l.Unlock()
+		return []*Sample{}
+	}
+
+	if count > max {
+		count = max
+	}
+
+	items := make([]*Sample, 0, count)
+	for i := 0; i < count; i++ {
+		item := l.L.Remove(l.L.Back())
+		v, ok := item.(*Sample)
+		if ok {
+			items = append(items, v)
+		}
+	}
+
+	l.Unlock()
+	return items
+}
+
+func (l *SampleList) PopBackAll() []*Sample {
+	l.Lock()
+
+	count := l.len()
+	if count == 0 {
+		l.Unlock()
+		return []*Sample{}
+	}
+
+	items := make([]*Sample, 0, count)
+	for i := 0; i < count; i++ {
+		item := l.L.Remove(l.L.Back())
+		v, ok := item.(*Sample)
+		if ok {
+			items = append(items, v)
+		}
+	}
+
+	l.Unlock()
+	return items
+}
+
+func (l *SampleList) Remove(e *list.Element) *Sample {
+	l.Lock()
+	defer l.Unlock()
+	item := l.L.Remove(e)
+	v, ok := item.(*Sample)
+	if ok {
+		return v
+	}
+	return nil
+}
+
+func (l *SampleList) RemoveAll() {
+	l.Lock()
+	l.L = list.New()
+	l.Unlock()
+}
+
+func (l *SampleList) FrontAll() []*Sample {
+	l.RLock()
+	defer l.RUnlock()
+
+	count := l.len()
+	if count == 0 {
+		return []*Sample{}
+	}
+
+	items := make([]*Sample, 0, count)
+	for e := l.L.Front(); e != nil; e = e.Next() {
+		v, ok := e.Value.(*Sample)
+		if ok {
+			items = append(items, v)
+		}
+	}
+	return items
+}
+
+func (l *SampleList) BackAll() []*Sample {
+	l.RLock()
+	defer l.RUnlock()
+
+	count := l.len()
+	if count == 0 {
+		return []*Sample{}
+	}
+
+	items := make([]*Sample, 0, count)
+	for e := l.L.Back(); e != nil; e = e.Prev() {
+		v, ok := e.Value.(*Sample)
+		if ok {
+			items = append(items, v)
+		}
+	}
+	return items
+}
+
+func (l *SampleList) Front() *Sample {
+	l.RLock()
+
+	if f := l.L.Front(); f != nil {
+		l.RUnlock()
+		v, ok := f.Value.(*Sample)
+		if ok {
+			return v
+		}
+		return nil
+	}
+
+	l.RUnlock()
+	return nil
+}
+
+func (l *SampleList) Len() int {
+	l.RLock()
+	defer l.RUnlock()
+	return l.len()
+}
+
+func (l *SampleList) len() int {
+	return l.L.Len()
+}

writer/writers.go

@@ -51,20 +51,14 @@ func InitWriters() error {
 }
 
 func postSeries(samples []*types.Sample) {
-	now := time.Now()
-
 	if config.Config.TestMode {
-		printTestMetrics(samples, now)
+		printTestMetrics(samples)
 		return
 	}
 
 	count := len(samples)
 	series := make([]prompb.TimeSeries, 0, count)
 	for i := 0; i < count; i++ {
-		if samples[i].Timestamp.IsZero() {
-			samples[i].Timestamp = now
-		}
-
 		item := convert(samples[i])
 		if len(item.Labels) == 0 {
 			continue
@@ -84,14 +78,10 @@ func postSeries(samples []*types.Sample) {
 	wg.Wait()
 }
 
-func printTestMetrics(samples []*types.Sample, now time.Time) {
+func printTestMetrics(samples []*types.Sample) {
 	for i := 0; i < len(samples); i++ {
 		var sb strings.Builder
 
-		if samples[i].Timestamp.IsZero() {
-			samples[i].Timestamp = now
-		}
-
 		sb.WriteString(samples[i].Timestamp.Format("15:04:05"))
 		sb.WriteString(" ")
 		sb.WriteString(samples[i].Metric)