refactor collect push , sys -> core (#271)

Co-authored-by: wangzhiguo04 <wangzhiguo04@meicai.cn>

src/modules/collector/collector.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/didi/nightingale/src/modules/collector/cache"
 	"github.com/didi/nightingale/src/modules/collector/config"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/http/routes"
 	"github.com/didi/nightingale/src/modules/collector/log/worker"
 	"github.com/didi/nightingale/src/modules/collector/stra"
@@ -75,7 +76,7 @@ func main() {
 	sys.Init(cfg.Sys)
 	stra.Init(cfg.Stra)
 
-	funcs.InitRpcClients()
+	core.InitRpcClients()
 	funcs.BuildMappers()
 	funcs.Collect()
 

src/modules/collector/core/clients.go

@@ -1,4 +1,4 @@
-package funcs
+package core
 
 import (
 	"net/rpc"

src/modules/collector/core/common.go

@@ -1,4 +1,4 @@
-package funcs
+package core
 
 import (
 	"strings"

src/modules/collector/core/push.go

@@ -1,4 +1,4 @@
-package funcs
+package core
 
 import (
 	"bufio"

src/modules/collector/http/routes/api_router.go

@@ -5,10 +5,10 @@ import (
 	"os"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/log/strategy"
 	"github.com/didi/nightingale/src/modules/collector/log/worker"
 	"github.com/didi/nightingale/src/modules/collector/stra"
-	"github.com/didi/nightingale/src/modules/collector/sys/funcs"
 	"github.com/didi/nightingale/src/toolkits/http/render"
 
 	"github.com/gin-gonic/gin"
@@ -36,7 +36,7 @@ func pushData(c *gin.Context) {
 	var recvMetricValues []*dataobj.MetricValue
 	errors.Dangerous(c.ShouldBindJSON(&recvMetricValues))
 
-	err := funcs.Push(recvMetricValues)
+	err := core.Push(recvMetricValues)
 	render.Message(c, err)
 }
 

src/modules/collector/log/worker/push.go

@@ -7,8 +7,8 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/stra"
-	"github.com/didi/nightingale/src/modules/collector/sys/funcs"
 	"github.com/didi/nightingale/src/toolkits/identity"
 
 	"github.com/toolkits/pkg/logger"
@@ -208,7 +208,7 @@ func postToCollector(paramPoints []*dataobj.MetricValue) {
 	sort.Sort(tsps)
 
 	for _, ps := range tsps {
-		funcs.Push(ps.ps)
+		core.Push(ps.ps)
 
 		// 1000ms是经验值
 		// 对于10G/小时的数据量+异步落盘的场景, 产生的结果友好一些

src/modules/collector/sys/funcs/collector.go

@@ -2,10 +2,11 @@ package funcs
 
 import (
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func CollectorMetrics() []*dataobj.MetricValue {
 	return []*dataobj.MetricValue{
-		GaugeValue("proc.agent.alive", 1),
+		core.GaugeValue("proc.agent.alive", 1),
 	}
 }

src/modules/collector/sys/funcs/cpustat.go

@@ -9,6 +9,7 @@ import (
 	"github.com/toolkits/pkg/nux"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 const (
@@ -222,32 +223,32 @@ func CpuMetrics() []*dataobj.MetricValue {
 	var ret []*dataobj.MetricValue
 
 	cpuIdleVal := CpuIdle()
-	idle := GaugeValue("cpu.idle", cpuIdleVal)
+	idle := core.GaugeValue("cpu.idle", cpuIdleVal)
-	util := GaugeValue("cpu.util", 100.0-cpuIdleVal)
+	util := core.GaugeValue("cpu.util", 100.0-cpuIdleVal)
-	user := GaugeValue("cpu.user", CpuUser())
+	user := core.GaugeValue("cpu.user", CpuUser())
-	system := GaugeValue("cpu.sys", CpuSystem())
+	system := core.GaugeValue("cpu.sys", CpuSystem())
-	nice := GaugeValue("cpu.nice", CpuNice())
+	nice := core.GaugeValue("cpu.nice", CpuNice())
-	iowait := GaugeValue("cpu.iowait", CpuIowait())
+	iowait := core.GaugeValue("cpu.iowait", CpuIowait())
-	irq := GaugeValue("cpu.irq", CpuIrq())
+	irq := core.GaugeValue("cpu.irq", CpuIrq())
-	softirq := GaugeValue("cpu.softirq", CpuSoftIrq())
+	softirq := core.GaugeValue("cpu.softirq", CpuSoftIrq())
-	steal := GaugeValue("cpu.steal", CpuSteal())
+	steal := core.GaugeValue("cpu.steal", CpuSteal())
-	guest := GaugeValue("cpu.guest", CpuGuest())
+	guest := core.GaugeValue("cpu.guest", CpuGuest())
-	switches := GaugeValue("cpu.switches", CpuContentSwitches())
+	switches := core.GaugeValue("cpu.switches", CpuContentSwitches())
 	ret = []*dataobj.MetricValue{idle, util, user, nice, system, iowait, irq, softirq, steal, guest, switches}
 
 	idles := CpuIdles()
 	for i, stats := range idles {
 		tags := fmt.Sprintf("core=%d", i)
-		ret = append(ret, GaugeValue("cpu.core.idle", stats.Idle, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.idle", stats.Idle, tags))
-		ret = append(ret, GaugeValue("cpu.core.util", 100.0-stats.Idle, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.util", 100.0-stats.Idle, tags))
-		ret = append(ret, GaugeValue("cpu.core.user", stats.User, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.user", stats.User, tags))
-		ret = append(ret, GaugeValue("cpu.core.sys", stats.System, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.sys", stats.System, tags))
-		ret = append(ret, GaugeValue("cpu.core.irq", stats.Irq, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.irq", stats.Irq, tags))
-		ret = append(ret, GaugeValue("cpu.core.softirq", stats.SoftIrq, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.softirq", stats.SoftIrq, tags))
-		ret = append(ret, GaugeValue("cpu.core.steal", stats.Steal, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.steal", stats.Steal, tags))
-		ret = append(ret, GaugeValue("cpu.core.iowait", stats.Iowait, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.iowait", stats.Iowait, tags))
-		ret = append(ret, GaugeValue("cpu.core.nice", stats.Nice, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.nice", stats.Nice, tags))
-		ret = append(ret, GaugeValue("cpu.core.guest", stats.Guest, tags))
+		ret = append(ret, core.GaugeValue("cpu.core.guest", stats.Guest, tags))
 	}
 
 	return ret

src/modules/collector/sys/funcs/cron.go

@@ -4,6 +4,7 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/sys"
 	"github.com/didi/nightingale/src/toolkits/identity"
 )
@@ -46,6 +47,6 @@ func collect(sec int64, fn func() []*dataobj.MetricValue) {
 			item.Timestamp = now
 			metricValues = append(metricValues, item)
 		}
-		Push(metricValues)
+		core.Push(metricValues)
 	}
 }

src/modules/collector/sys/funcs/dfstat.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/sys"
 
 	"github.com/toolkits/pkg/logger"
@@ -56,26 +57,26 @@ func DeviceMetrics() []*dataobj.MetricValue {
 		diskUsed += du.BlocksUsed
 
 		tags := fmt.Sprintf("mount=%s", du.FsFile)
-		ret = append(ret, GaugeValue("disk.bytes.total", du.BlocksAll, tags))
+		ret = append(ret, core.GaugeValue("disk.bytes.total", du.BlocksAll, tags))
-		ret = append(ret, GaugeValue("disk.bytes.free", du.BlocksFree, tags))
+		ret = append(ret, core.GaugeValue("disk.bytes.free", du.BlocksFree, tags))
-		ret = append(ret, GaugeValue("disk.bytes.used", du.BlocksUsed, tags))
+		ret = append(ret, core.GaugeValue("disk.bytes.used", du.BlocksUsed, tags))
-		ret = append(ret, GaugeValue("disk.bytes.used.percent", du.BlocksUsedPercent, tags))
+		ret = append(ret, core.GaugeValue("disk.bytes.used.percent", du.BlocksUsedPercent, tags))
 
 		if du.InodesAll == 0 {
 			continue
 		}
 
-		ret = append(ret, GaugeValue("disk.inodes.total", du.InodesAll, tags))
+		ret = append(ret, core.GaugeValue("disk.inodes.total", du.InodesAll, tags))
-		ret = append(ret, GaugeValue("disk.inodes.free", du.InodesFree, tags))
+		ret = append(ret, core.GaugeValue("disk.inodes.free", du.InodesFree, tags))
-		ret = append(ret, GaugeValue("disk.inodes.used", du.InodesUsed, tags))
+		ret = append(ret, core.GaugeValue("disk.inodes.used", du.InodesUsed, tags))
-		ret = append(ret, GaugeValue("disk.inodes.used.percent", du.InodesUsedPercent, tags))
+		ret = append(ret, core.GaugeValue("disk.inodes.used.percent", du.InodesUsedPercent, tags))
 	}
 
 	if len(ret) > 0 && diskTotal > 0 {
-		ret = append(ret, GaugeValue("disk.cap.bytes.total", float64(diskTotal)))
+		ret = append(ret, core.GaugeValue("disk.cap.bytes.total", float64(diskTotal)))
-		ret = append(ret, GaugeValue("disk.cap.bytes.used", float64(diskUsed)))
+		ret = append(ret, core.GaugeValue("disk.cap.bytes.used", float64(diskUsed)))
-		ret = append(ret, GaugeValue("disk.cap.bytes.free", float64(diskTotal-diskUsed)))
+		ret = append(ret, core.GaugeValue("disk.cap.bytes.free", float64(diskTotal-diskUsed)))
-		ret = append(ret, GaugeValue("disk.cap.bytes.used.percent", float64(diskUsed)*100.0/float64(diskTotal)))
+		ret = append(ret, core.GaugeValue("disk.cap.bytes.used.percent", float64(diskUsed)*100.0/float64(diskTotal)))
 	}
 
 	return ret

src/modules/collector/sys/funcs/diskstat.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 
 	"github.com/toolkits/pkg/logger"
 	"github.com/toolkits/pkg/nux"
@@ -127,19 +128,19 @@ func IOStatsMetrics() []*dataobj.MetricValue {
 		}
 
 		duration := IODelta(device, TS)
-		ret = append(ret, GaugeValue("disk.io.read.request", float64(rio), tags))
+		ret = append(ret, core.GaugeValue("disk.io.read.request", float64(rio), tags))
-		ret = append(ret, GaugeValue("disk.io.write.request", float64(wio), tags))
+		ret = append(ret, core.GaugeValue("disk.io.write.request", float64(wio), tags))
-		ret = append(ret, GaugeValue("disk.io.read.bytes", float64(deltaRsec)*512.0, tags))
+		ret = append(ret, core.GaugeValue("disk.io.read.bytes", float64(deltaRsec)*512.0, tags))
-		ret = append(ret, GaugeValue("disk.io.write.bytes", float64(deltaWsec)*512.0, tags))
+		ret = append(ret, core.GaugeValue("disk.io.write.bytes", float64(deltaWsec)*512.0, tags))
-		ret = append(ret, GaugeValue("disk.io.avgrq_sz", avgrqSz, tags))
+		ret = append(ret, core.GaugeValue("disk.io.avgrq_sz", avgrqSz, tags))
-		ret = append(ret, GaugeValue("disk.io.avgqu_sz", float64(IODelta(device, IOMsecWeightedTotal))/1000.0, tags))
+		ret = append(ret, core.GaugeValue("disk.io.avgqu_sz", float64(IODelta(device, IOMsecWeightedTotal))/1000.0, tags))
-		ret = append(ret, GaugeValue("disk.io.await", await, tags))
+		ret = append(ret, core.GaugeValue("disk.io.await", await, tags))
-		ret = append(ret, GaugeValue("disk.io.svctm", svctm, tags))
+		ret = append(ret, core.GaugeValue("disk.io.svctm", svctm, tags))
 		tmp := float64(use) * 100.0 / float64(duration)
 		if tmp > 100.0 {
 			tmp = 100.0
 		}
-		ret = append(ret, GaugeValue("disk.io.util", tmp, tags))
+		ret = append(ret, core.GaugeValue("disk.io.util", tmp, tags))
 	}
 
 	return ret

src/modules/collector/sys/funcs/fsstat.go

@@ -9,6 +9,7 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/sys"
 
 	"github.com/toolkits/pkg/logger"
@@ -52,14 +53,14 @@ func FsRWMetrics() []*dataobj.MetricValue {
 		f, err := os.Open(du.FsFile)
 		if err != nil {
 			logger.Error("target mount point open failed:", err)
-			ret = append(ret, GaugeValue("disk.rw.error", 1, tags))
+			ret = append(ret, core.GaugeValue("disk.rw.error", 1, tags))
 			continue
 		}
 
 		fs, err := f.Stat()
 		if err != nil {
 			logger.Error("get target mount point status failed:", err)
-			ret = append(ret, GaugeValue("disk.rw.error", 2, tags))
+			ret = append(ret, core.GaugeValue("disk.rw.error", 2, tags))
 			continue
 		}
 
@@ -72,9 +73,9 @@ func FsRWMetrics() []*dataobj.MetricValue {
 		content := "FS-RW" + now
 		err = CheckFS(file, content)
 		if err != nil {
-			ret = append(ret, GaugeValue("disk.rw.error", 3, tags))
+			ret = append(ret, core.GaugeValue("disk.rw.error", 3, tags))
 		} else {
-			ret = append(ret, GaugeValue("disk.rw.error", 0, tags))
+			ret = append(ret, core.GaugeValue("disk.rw.error", 0, tags))
 		}
 	}
 

src/modules/collector/sys/funcs/ifstat.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/sys"
 
 	"github.com/toolkits/pkg/logger"
@@ -60,50 +61,50 @@ func NetMetrics() (ret []*dataobj.MetricValue) {
 		}
 
 		inbits := inbytes * 8
-		ret = append(ret, GaugeValue("net.in.bits", inbits, tags))
+		ret = append(ret, core.GaugeValue("net.in.bits", inbits, tags))
 
 		outbytes := float64(stat.outBytes-oldStat.outBytes) / float64(interval)
 		if outbytes < 0 {
 			outbytes = 0
 		}
 		outbits := outbytes * 8
-		ret = append(ret, GaugeValue("net.out.bits", outbits, tags))
+		ret = append(ret, core.GaugeValue("net.out.bits", outbits, tags))
 
 		v := float64(stat.inDrop-oldStat.inDrop) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.in.dropped", v, tags))
+		ret = append(ret, core.GaugeValue("net.in.dropped", v, tags))
 
 		v = float64(stat.outDrop-oldStat.outDrop) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.out.dropped", v, tags))
+		ret = append(ret, core.GaugeValue("net.out.dropped", v, tags))
 
 		v = float64(stat.inPackets-oldStat.inPackets) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.in.pps", v, tags))
+		ret = append(ret, core.GaugeValue("net.in.pps", v, tags))
 
 		v = float64(stat.outPackets-oldStat.outPackets) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.out.pps", v, tags))
+		ret = append(ret, core.GaugeValue("net.out.pps", v, tags))
 
 		v = float64(stat.inErr-oldStat.inErr) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.in.errs", v, tags))
+		ret = append(ret, core.GaugeValue("net.in.errs", v, tags))
 
 		v = float64(stat.outErr-oldStat.outErr) / float64(interval)
 		if v < 0 {
 			v = 0
 		}
-		ret = append(ret, GaugeValue("net.out.errs", v, tags))
+		ret = append(ret, core.GaugeValue("net.out.errs", v, tags))
 
 		if strings.HasPrefix(iface, "vnet") { //vnet采集到的stat.speed不准确，不计算percent
 			continue
@@ -114,36 +115,36 @@ func NetMetrics() (ret []*dataobj.MetricValue) {
 		inPercent := float64(inbits) * 100 / float64(stat.speed*1000000)
 
 		if inPercent < 0 || stat.speed <= 0 {
-			ret = append(ret, GaugeValue("net.in.percent", 0, tags))
+			ret = append(ret, core.GaugeValue("net.in.percent", 0, tags))
 		} else {
-			ret = append(ret, GaugeValue("net.in.percent", inPercent, tags))
+			ret = append(ret, core.GaugeValue("net.in.percent", inPercent, tags))
 		}
 
 		outTotalUsed += outbits
 		outPercent := float64(outbits) * 100 / float64(stat.speed*1000000)
 		if outPercent < 0 || stat.speed <= 0 {
-			ret = append(ret, GaugeValue("net.out.percent", 0, tags))
+			ret = append(ret, core.GaugeValue("net.out.percent", 0, tags))
 		} else {
-			ret = append(ret, GaugeValue("net.out.percent", outPercent, tags))
+			ret = append(ret, core.GaugeValue("net.out.percent", outPercent, tags))
 		}
 
-		ret = append(ret, GaugeValue("net.bandwidth.mbits", stat.speed, tags))
+		ret = append(ret, core.GaugeValue("net.bandwidth.mbits", stat.speed, tags))
 		totalBandwidth += stat.speed
 	}
 
-	ret = append(ret, GaugeValue("net.bandwidth.mbits.total", totalBandwidth))
+	ret = append(ret, core.GaugeValue("net.bandwidth.mbits.total", totalBandwidth))
-	ret = append(ret, GaugeValue("net.in.bits.total", inTotalUsed))
+	ret = append(ret, core.GaugeValue("net.in.bits.total", inTotalUsed))
-	ret = append(ret, GaugeValue("net.out.bits.total", outTotalUsed))
+	ret = append(ret, core.GaugeValue("net.out.bits.total", outTotalUsed))
 
 	if totalBandwidth <= 0 {
-		ret = append(ret, GaugeValue("net.in.bits.total.percent", 0))
+		ret = append(ret, core.GaugeValue("net.in.bits.total.percent", 0))
-		ret = append(ret, GaugeValue("net.out.bits.total.percent", 0))
+		ret = append(ret, core.GaugeValue("net.out.bits.total.percent", 0))
 	} else {
 		inTotalPercent := float64(inTotalUsed) / float64(totalBandwidth*1000000) * 100
-		ret = append(ret, GaugeValue("net.in.bits.total.percent", inTotalPercent))
+		ret = append(ret, core.GaugeValue("net.in.bits.total.percent", inTotalPercent))
 
 		outTotalPercent := float64(outTotalUsed) / float64(totalBandwidth*1000000) * 100
-		ret = append(ret, GaugeValue("net.out.bits.total.percent", outTotalPercent))
+		ret = append(ret, core.GaugeValue("net.out.bits.total.percent", outTotalPercent))
 	}
 
 	historyIfStat = newIfStat

src/modules/collector/sys/funcs/loadavg.go

@@ -5,6 +5,7 @@ import (
 	"github.com/toolkits/pkg/nux"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func LoadAvgMetrics() []*dataobj.MetricValue {
@@ -15,8 +16,8 @@ func LoadAvgMetrics() []*dataobj.MetricValue {
 	}
 
 	return []*dataobj.MetricValue{
-		GaugeValue("cpu.loadavg.1", load.Avg1min),
+		core.GaugeValue("cpu.loadavg.1", load.Avg1min),
-		GaugeValue("cpu.loadavg.5", load.Avg5min),
+		core.GaugeValue("cpu.loadavg.5", load.Avg5min),
-		GaugeValue("cpu.loadavg.15", load.Avg15min),
+		core.GaugeValue("cpu.loadavg.15", load.Avg15min),
 	}
 }

src/modules/collector/sys/funcs/meminfo.go

@@ -5,6 +5,7 @@ import (
 	"github.com/toolkits/pkg/nux"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func MemMetrics() []*dataobj.MetricValue {
@@ -32,15 +33,15 @@ func MemMetrics() []*dataobj.MetricValue {
 	}
 
 	return []*dataobj.MetricValue{
-		GaugeValue("mem.bytes.total", m.MemTotal),
+		core.GaugeValue("mem.bytes.total", m.MemTotal),
-		GaugeValue("mem.bytes.used", memUsed),
+		core.GaugeValue("mem.bytes.used", memUsed),
-		GaugeValue("mem.bytes.free", memFree),
+		core.GaugeValue("mem.bytes.free", memFree),
-		GaugeValue("mem.bytes.used.percent", pmemUsed),
+		core.GaugeValue("mem.bytes.used.percent", pmemUsed),
-		GaugeValue("mem.bytes.buffers", m.Buffers),
+		core.GaugeValue("mem.bytes.buffers", m.Buffers),
-		GaugeValue("mem.bytes.cached", m.Cached),
+		core.GaugeValue("mem.bytes.cached", m.Cached),
-		GaugeValue("mem.swap.bytes.total", m.SwapTotal),
+		core.GaugeValue("mem.swap.bytes.total", m.SwapTotal),
-		GaugeValue("mem.swap.bytes.used", m.SwapUsed),
+		core.GaugeValue("mem.swap.bytes.used", m.SwapUsed),
-		GaugeValue("mem.swap.bytes.free", m.SwapFree),
+		core.GaugeValue("mem.swap.bytes.free", m.SwapFree),
-		GaugeValue("mem.swap.bytes.used.percent", pswapUsed),
+		core.GaugeValue("mem.swap.bytes.used.percent", pswapUsed),
 	}
 }

src/modules/collector/sys/funcs/netfilter.go

@@ -5,6 +5,7 @@ import (
 	"github.com/toolkits/pkg/logger"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func NfMetrics() []*dataobj.MetricValue {
@@ -20,19 +21,19 @@ func NfMetrics() []*dataobj.MetricValue {
 	if err != nil {
 		logger.Error("read file err:", connMaxFile, err)
 	} else {
-		res = append(res, GaugeValue("sys.net.netfilter.nf_conntrack_max", nfConntrackMax))
+		res = append(res, core.GaugeValue("sys.net.netfilter.nf_conntrack_max", nfConntrackMax))
 	}
 
 	nfConntrackCount, err := file.ToInt64(connCountFile)
 	if err != nil {
 		logger.Error("read file err:", connMaxFile, err)
 	} else {
-		res = append(res, GaugeValue("sys.net.netfilter.nf_conntrack_count", nfConntrackCount))
+		res = append(res, core.GaugeValue("sys.net.netfilter.nf_conntrack_count", nfConntrackCount))
 	}
 
 	if nfConntrackMax != 0 {
 		percent := float64(nfConntrackCount) / float64(nfConntrackMax) * 100
-		res = append(res, GaugeValue("sys.net.netfilter.nf_conntrack_count.percent", percent))
+		res = append(res, core.GaugeValue("sys.net.netfilter.nf_conntrack_count.percent", percent))
 	}
 
 	return res

src/modules/collector/sys/funcs/ntp.go

@@ -4,6 +4,7 @@ import (
 	"time"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/modules/collector/sys"
 
 	"github.com/toolkits/pkg/logger"
@@ -44,7 +45,7 @@ func NtpOffsetMetrics() []*dataobj.MetricValue {
 		logger.Debug("ntp: client receive time, ", dstTime)
 
 		delta := duration / 1e6 // 转换成 ms
-		ret = append(ret, GaugeValue("sys.ntp.offset.ms", delta))
+		ret = append(ret, core.GaugeValue("sys.ntp.offset.ms", delta))
 
 		//one ntp server's response is enough
 		break

src/modules/collector/sys/funcs/snmp.go

@@ -1,6 +1,7 @@
 package funcs
 
 import (
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/toolkits/pkg/logger"
 	"github.com/toolkits/pkg/nux"
 
@@ -18,7 +19,7 @@ func UdpMetrics() []*dataobj.MetricValue {
 	ret := make([]*dataobj.MetricValue, count)
 	i := 0
 	for key, val := range udp {
-		ret[i] = GaugeValue("snmp.Udp."+key,val)
+		ret[i] = core.GaugeValue("snmp.Udp."+key, val)
 		i++
 	}
 
@@ -35,7 +36,7 @@ func TcpMetrics() []*dataobj.MetricValue {
 	ret := make([]*dataobj.MetricValue, count)
 	i := 0
 	for key, val := range tcp {
-		ret[i] = GaugeValue("snmp.Tcp."+key,val)
+		ret[i] = core.GaugeValue("snmp.Tcp."+key, val)
 		i++
 	}
 

src/modules/collector/sys/funcs/sockstas.go

@@ -5,6 +5,7 @@ import (
 	"github.com/toolkits/pkg/nux"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func SocketStatSummaryMetrics() []*dataobj.MetricValue {
@@ -16,7 +17,7 @@ func SocketStatSummaryMetrics() []*dataobj.MetricValue {
 	}
 
 	for k, v := range ssMap {
-		ret = append(ret, GaugeValue("net."+k, v))
+		ret = append(ret, core.GaugeValue("net."+k, v))
 	}
 
 	return ret

src/modules/collector/sys/funcs/sys.go

@@ -10,6 +10,7 @@ import (
 	"github.com/toolkits/pkg/nux"
 
 	"github.com/didi/nightingale/src/dataobj"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 func FsKernelMetrics() []*dataobj.MetricValue {
@@ -27,10 +28,10 @@ func FsKernelMetrics() []*dataobj.MetricValue {
 
 	v := math.Ceil(float64(allocateFiles) * 100 / float64(maxFiles))
 	return []*dataobj.MetricValue{
-		GaugeValue("sys.fs.files.max", maxFiles),
+		core.GaugeValue("sys.fs.files.max", maxFiles),
-		GaugeValue("sys.fs.files.free", maxFiles-allocateFiles),
+		core.GaugeValue("sys.fs.files.free", maxFiles-allocateFiles),
-		GaugeValue("sys.fs.files.used", allocateFiles),
+		core.GaugeValue("sys.fs.files.used", allocateFiles),
-		GaugeValue("sys.fs.files.used.percent", v),
+		core.GaugeValue("sys.fs.files.used.percent", v),
 	}
 }
 
@@ -58,7 +59,7 @@ func ProcsNumMetrics() []*dataobj.MetricValue {
 	}
 
 	return []*dataobj.MetricValue{
-		GaugeValue("sys.ps.process.total", num),
+		core.GaugeValue("sys.ps.process.total", num),
 	}
 }
 
@@ -87,6 +88,6 @@ func EntityNumMetrics() []*dataobj.MetricValue {
 	}
 
 	return []*dataobj.MetricValue{
-		GaugeValue("sys.ps.entity.total", num),
+		core.GaugeValue("sys.ps.entity.total", num),
 	}
 }

src/modules/collector/sys/plugins/scheduler.go

@@ -14,7 +14,7 @@ import (
 	"github.com/toolkits/pkg/sys"
 
 	"github.com/didi/nightingale/src/dataobj"
-	"github.com/didi/nightingale/src/modules/collector/sys/funcs"
+	"github.com/didi/nightingale/src/modules/collector/core"
 )
 
 type PluginScheduler struct {
@@ -140,5 +140,5 @@ func PluginRun(plugin *Plugin) {
 		items[i].Step = int64(plugin.Cycle)
 	}
 
-	funcs.Push(items)
+	core.Push(items)
 }

src/modules/collector/sys/ports/scheduler.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/didi/nightingale/src/dataobj"
 	"github.com/didi/nightingale/src/model"
-	"github.com/didi/nightingale/src/modules/collector/sys/funcs"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/toolkits/identity"
 )
 
@@ -50,11 +50,11 @@ func PortCollect(p *model.PortCollect) {
 		value = 1
 	}
 
-	item := funcs.GaugeValue("proc.port.listen", value, p.Tags)
+	item := core.GaugeValue("proc.port.listen", value, p.Tags)
 	item.Step = int64(p.Step)
 	item.Timestamp = time.Now().Unix()
 	item.Endpoint = identity.Identity
-	funcs.Push([]*dataobj.MetricValue{item})
+	core.Push([]*dataobj.MetricValue{item})
 }
 
 func isListening(port int) bool {

src/modules/collector/sys/procs/scheduler.go

@@ -4,13 +4,13 @@ import (
 	"strings"
 	"time"
 
-	"github.com/toolkits/pkg/logger"
-	process "github.com/shirou/gopsutil/process"
 	"github.com/didi/nightingale/src/dataobj"
 	"github.com/didi/nightingale/src/model"
-	"github.com/didi/nightingale/src/modules/collector/sys/funcs"
 	"github.com/didi/nightingale/src/modules/collector/cache"
+	"github.com/didi/nightingale/src/modules/collector/core"
 	"github.com/didi/nightingale/src/toolkits/identity"
+	process "github.com/shirou/gopsutil/process"
+	"github.com/toolkits/pkg/logger"
 )
 
 type ProcScheduler struct {
@@ -53,13 +53,13 @@ func ProcCollect(p *model.ProcCollect) {
 	var memUsedTotal uint64 = 0
 	var memUtilTotal = 0.0
 	var cpuUtilTotal = 0.0
-	var items [] *dataobj.MetricValue
+	var items []*dataobj.MetricValue
 	cnt := 0
 	for _, procs := range ps {
 		if isProc(procs, p.CollectMethod, p.Target) {
 			cnt++
 			procCache, exists := cache.ProcsCache.Get(procs.Pid)
-			if !exists{
+			if !exists {
 				cache.ProcsCache.Set(procs.Pid, procs)
 				procCache = procs
 			}
@@ -83,22 +83,21 @@ func ProcCollect(p *model.ProcCollect) {
 			cpuUtilTotal += cpuUtil
 		}
 
-
 	}
 
-	procNumItem := funcs.GaugeValue("proc.num", cnt, p.Tags)
+	procNumItem := core.GaugeValue("proc.num", cnt, p.Tags)
-	memUsedItem := funcs.GaugeValue("proc.mem.used", memUsedTotal, p.Tags)
+	memUsedItem := core.GaugeValue("proc.mem.used", memUsedTotal, p.Tags)
-	memUtilItem := funcs.GaugeValue("proc.mem.util", memUtilTotal, p.Tags)
+	memUtilItem := core.GaugeValue("proc.mem.util", memUtilTotal, p.Tags)
-	cpuUtilItem := funcs.GaugeValue("proc.cpu.util", cpuUtilTotal, p.Tags)
+	cpuUtilItem := core.GaugeValue("proc.cpu.util", cpuUtilTotal, p.Tags)
 	items = []*dataobj.MetricValue{procNumItem, memUsedItem, memUtilItem, cpuUtilItem}
 	now := time.Now().Unix()
-	for _, item := range items{
+	for _, item := range items {
 		item.Step = int64(p.Step)
 		item.Timestamp = now
 		item.Endpoint = identity.Identity
 	}
 
-	funcs.Push(items)
+	core.Push(items)
 }
 
 func isProc(p *process.Process, method, target string) bool {