Change push index from async to sync

src/modules/tsdb/index/update_incr.go

@@ -7,7 +7,6 @@ import (
 	"github.com/didi/nightingale/src/modules/tsdb/backend/rpc"
 	"github.com/didi/nightingale/src/toolkits/str"
 
-	"github.com/toolkits/pkg/concurrent/semaphore"
 	"github.com/toolkits/pkg/logger"
 )
 
@@ -15,17 +14,8 @@ const (
 	IndexUpdateIncrTaskSleepInterval = time.Duration(10) * time.Second // 增量更新间隔时间, 默认30s
 )
 
-var (
-	semaUpdateIndexIncr *semaphore.Semaphore // 索引增量更新时并发控制
-)
-
 // 启动索引的 异步、增量更新 任务, 每隔一定时间，刷新cache中的数据到数据库中
 func StartIndexUpdateIncrTask() {
-	if rpc.Config.MaxConns != 0 {
-		semaUpdateIndexIncr = semaphore.NewSemaphore(rpc.Config.MaxConns / 2)
-	} else {
-		semaUpdateIndexIncr = semaphore.NewSemaphore(10)
-	}
 
 	t1 := time.NewTicker(IndexUpdateIncrTaskSleepInterval)
 	for {
@@ -64,21 +54,12 @@ func updateIndexIncr() int {
 			tmpList[i] = item
 			i = i + 1
 			if i == aggrNum {
-				semaUpdateIndexIncr.Acquire()
-				go func(items []*dataobj.TsdbItem) {
-					defer semaUpdateIndexIncr.Release()
-					rpc.Push2Index(rpc.INCRINDEX, items, IndexList.Get())
-				}(tmpList)
-				i = 0
+				rpc.Push2Index(rpc.INCRINDEX, tmpList, IndexList.Get())
 			}
 		}
 
 		if i != 0 {
-			semaUpdateIndexIncr.Acquire()
-			go func(items []*dataobj.TsdbItem) {
-				defer semaUpdateIndexIncr.Release()
-				rpc.Push2Index(rpc.INCRINDEX, items, IndexList.Get())
-			}(tmpList[:i])
+			rpc.Push2Index(rpc.INCRINDEX, tmpList[:i], IndexList.Get())
 		}
 
 	}