enhance: modify log to avoid ambiguity and improve readability (#28331)

Signed-off-by: yah01 <yah2er0ne@outlook.com>

internal/querycoordv2/task/scheduler.go

@@ -551,10 +551,10 @@ func (scheduler *taskScheduler) schedule(node int64) {
 
 	// The scheduler doesn't limit the number of tasks,
 	// to commit tasks to executors as soon as possible, to reach higher merge possibility
-	failCount := atomic.NewInt32(0)
+	commmittedNum := atomic.NewInt32(0)
 	funcutil.ProcessFuncParallel(len(toProcess), hardware.GetCPUNum(), func(idx int) error {
-		if !scheduler.process(toProcess[idx]) {
-			failCount.Inc()
+		if scheduler.process(toProcess[idx]) {
+			commmittedNum.Inc()
 		}
 		return nil
 	}, "process")
@@ -565,7 +565,7 @@ func (scheduler *taskScheduler) schedule(node int64) {
 
 	log.Info("processed tasks",
 		zap.Int("toProcessNum", len(toProcess)),
-		zap.Int32("failCount", failCount.Load()),
+		zap.Int32("committedNum", commmittedNum.Load()),
 		zap.Int("toRemoveNum", len(toRemove)),
 	)
 
@@ -689,7 +689,7 @@ func (scheduler *taskScheduler) recordSegmentTaskError(task *SegmentTask) {
 		zap.Int64("collectionID", task.CollectionID()),
 		zap.Int64("replicaID", task.ReplicaID()),
 		zap.Int64("segmentID", task.SegmentID()),
-		zap.Int32("taskStatus", task.Status()),
+		zap.String("status", task.Status()),
 		zap.Error(task.err),
 	)
 	meta.GlobalFailedLoadCache.Put(task.collectionID, task.Err())
@@ -700,7 +700,7 @@ func (scheduler *taskScheduler) remove(task Task) {
 		zap.Int64("taskID", task.ID()),
 		zap.Int64("collectionID", task.CollectionID()),
 		zap.Int64("replicaID", task.ReplicaID()),
-		zap.Int32("taskStatus", task.Status()),
+		zap.String("status", task.Status()),
 	)
 	task.Cancel(nil)
 	scheduler.tasks.Remove(task.ID())
@@ -725,7 +725,7 @@ func (scheduler *taskScheduler) remove(task Task) {
 	}
 
 	scheduler.updateTaskMetrics()
-	log.Debug("task removed", zap.Stack("stack"))
+	log.Info("task removed")
 }
 
 func (scheduler *taskScheduler) checkStale(task Task) error {

internal/querycoordv2/task/task.go

@@ -33,16 +33,16 @@ import (
 )
 
 type (
-	Status   = int32
+	Status   = string
 	Priority int32
 )
 
 const (
-	TaskStatusCreated Status = iota + 1
-	TaskStatusStarted
-	TaskStatusSucceeded
-	TaskStatusCanceled
-	TaskStatusFailed
+	TaskStatusCreated   = "created"
+	TaskStatusStarted   = "started"
+	TaskStatusSucceeded = "succeeded"
+	TaskStatusCanceled  = "canceled"
+	TaskStatusFailed    = "failed"
 )
 
 const (
@@ -107,7 +107,7 @@ type baseTask struct {
 	loadType     querypb.LoadType
 
 	source   Source
-	status   *atomic.Int32
+	status   *atomic.String
 	priority Priority
 	err      error
 	actions  []Action
@@ -128,7 +128,7 @@ func newBaseTask(ctx context.Context, source Source, collectionID, replicaID Uni
 		replicaID:    replicaID,
 		shard:        shard,
 
-		status:   atomic.NewInt32(TaskStatusStarted),
+		status:   atomic.NewString(TaskStatusStarted),
 		priority: TaskPriorityNormal,
 		ctx:      ctx,
 		cancel:   cancel,