diff --git a/src/models/mon_collect_rule.go b/src/models/mon_collect_rule.go
index 65334dbc..0cf34719 100644
--- a/src/models/mon_collect_rule.go
+++ b/src/models/mon_collect_rule.go
@@ -37,6 +37,10 @@ func (p CollectRule) PluginName() string {
 	return p.CollectType
 }
 
+func (p *CollectRule) String() string {
+	return fmt.Sprintf("id %d type %s name %s", p.Id, p.CollectType, p.Name)
+}
+
 func (p *CollectRule) Validate(v ...interface{}) error {
 	if p.Name == "" {
 		return fmt.Errorf("invalid collectRule.name")
diff --git a/src/modules/monapi/http/router_collect.go b/src/modules/monapi/http/router_collect.go
index 490f41f0..276c30a9 100644
--- a/src/modules/monapi/http/router_collect.go
+++ b/src/modules/monapi/http/router_collect.go
@@ -3,7 +3,6 @@ package http
 import (
 	"encoding/json"
 	"fmt"
-	"log"
 	"regexp"
 	"strings"
 
@@ -90,7 +89,6 @@ func collectRulesGetV2(c *gin.Context) {
 	limit := queryInt(c, "limit", 20)
 	typ := queryStr(c, "type", "")
 
-	log.Printf("typ %s", typ)
 	total, list, err := models.GetCollectRules(typ, nid, limit, offset(c, limit, 0))
 
 	renderData(c, map[string]interface{}{
diff --git a/src/modules/prober/manager/collectrule.go b/src/modules/prober/manager/collectrule.go
index d175f652..c0c6581c 100644
--- a/src/modules/prober/manager/collectrule.go
+++ b/src/modules/prober/manager/collectrule.go
@@ -1,7 +1,6 @@
 package manager
 
 import (
-	"log"
 	"strconv"
 	"sync"
 	"time"
@@ -23,6 +22,7 @@ type collectRule struct {
 	precision time.Duration
 	metrics   []*dataobj.MetricValue
 	lastAt    int64
+	updatedAt int64
 }
 
 func newCollectRule(rule *models.CollectRule) (*collectRule, error) {
@@ -47,6 +47,7 @@ func newCollectRule(rule *models.CollectRule) (*collectRule, error) {
 		tags:        tags,
 		metrics:     []*dataobj.MetricValue{},
 		precision:   time.Second,
+		updatedAt:   rule.UpdatedAt,
 	}, nil
 }
 
@@ -121,15 +122,16 @@ func (p *collectRule) prepareMetrics() error {
 }
 
 func (p *collectRule) update(rule *models.CollectRule) error {
-	if p.CollectRule.UpdatedAt == rule.UpdatedAt {
+	if p.updatedAt == rule.UpdatedAt {
 		return nil
 	}
 
+	logger.Debugf("update %s", rule)
+
 	input, err := telegrafInput(rule)
 	if err != nil {
 		// ignore error, use old config
-		log.Printf("telegrafInput() id %d type %s name %s err %s",
-			rule.Id, rule.CollectType, rule.Name, err)
+		logger.Warningf("telegrafInput %s err %s", rule, err)
 	}
 
 	tags, err := dataobj.SplitTagsString(rule.Tags)
@@ -140,6 +142,7 @@ func (p *collectRule) update(rule *models.CollectRule) error {
 	p.Input = input
 	p.CollectRule = rule
 	p.tags = tags
+	p.UpdatedAt = rule.UpdatedAt
 
 	return nil
 }
diff --git a/src/modules/prober/manager/manager.go b/src/modules/prober/manager/manager.go
index 904a8c91..465fd8b4 100644
--- a/src/modules/prober/manager/manager.go
+++ b/src/modules/prober/manager/manager.go
@@ -87,22 +87,22 @@ func (p *manager) schedule() error {
 		}
 
 		summary := heap.Pop(&p.heap).(*ruleSummary)
-		ruleConfig, ok := p.cache.Get(summary.id)
+		latestRule, ok := p.cache.Get(summary.id)
 		if !ok {
 			// drop it if not exist in cache
 			delete(p.index, summary.id)
 			continue
 		}
 
-		rule, ok := p.index[ruleConfig.Id]
+		rule, ok := p.index[latestRule.Id]
 		if !ok {
 			// impossible
-			log.Printf("manager.index[%d] not exists", ruleConfig.Id)
+			logger.Warningf("manager.index[%d] not exists", latestRule.Id)
 			continue
 		}
 
 		// update rule
-		if err := rule.update(ruleConfig); err != nil {
+		if err := rule.update(latestRule); err != nil {
 			logger.Warningf("ruleEntity update err %s", err)
 		}
 
@@ -110,9 +110,9 @@ func (p *manager) schedule() error {
 
 		logger.Debugf("%s %s %d lastAt %ds before nextAt %ds later",
 			rule.CollectType, rule.Name, rule.Id,
-			now-rule.lastAt, ruleConfig.Step)
+			now-rule.lastAt, rule.Step)
 
-		summary.activeAt = now + int64(ruleConfig.Step)
+		summary.activeAt = now + int64(rule.Step)
 		rule.lastAt = now
 		heap.Push(&p.heap, summary)