Fix Bulkload ut print too much result (#21821)

Signed-off-by: Nxiaofan-luan <xiaofan.luan@zilliz.com>

internal/rootcoord/import_manager.go

@@ -40,8 +40,7 @@ import (
 )
 
 const (
-	MaxPendingCount = 65536 // TODO: Make this configurable.
-	delimiter       = "/"
+	delimiter = "/"
 )
 
 // checkPendingTasksInterval is the default interval to check and send out pending tasks,
@@ -94,7 +93,7 @@ func newImportManager(ctx context.Context, client kv.TxnKV,
 	mgr := &importManager{
 		ctx:                       ctx,
 		taskStore:                 client,
-		pendingTasks:              make([]*datapb.ImportTaskInfo, 0, MaxPendingCount), // currently task queue max size is 32
+		pendingTasks:              make([]*datapb.ImportTaskInfo, 0, Params.RootCoordCfg.ImportMaxPendingTaskCount.GetAsInt()), // currently task queue max size is 32
 		workingTasks:              make(map[int64]*datapb.ImportTaskInfo),
 		busyNodes:                 make(map[int64]int64),
 		pendingLock:               sync.RWMutex{},

internal/rootcoord/import_manager_test.go

@@ -542,7 +542,10 @@ func TestImportManager_ImportJob(t *testing.T) {
 		globalCount++
 		return globalCount, 0, nil
 	}
+
 	paramtable.Get().Save(Params.RootCoordCfg.ImportTaskSubPath.Key, "test_import_task")
+	paramtable.Get().Save(Params.RootCoordCfg.ImportMaxPendingTaskCount.Key, "16")
+	defer paramtable.Get().Remove(Params.RootCoordCfg.ImportMaxPendingTaskCount.Key)
 	colID := int64(100)
 	mockKv := memkv.NewMemoryKV()
 	callMarkSegmentsDropped := func(ctx context.Context, segIDs []typeutil.UniqueID) (*commonpb.Status, error) {
@@ -654,9 +657,9 @@ func TestImportManager_ImportJob(t *testing.T) {
 
 	// the pending list already has one task
 	// once task count exceeds MaxPendingCount, return error
-	for i := 0; i <= MaxPendingCount; i++ {
+	for i := 0; i <= Params.RootCoordCfg.ImportMaxPendingTaskCount.GetAsInt(); i++ {
 		resp = mgr.importJob(context.TODO(), rowReq, colID, 0)
-		if i < MaxPendingCount-1 {
+		if i < Params.RootCoordCfg.ImportMaxPendingTaskCount.GetAsInt()-1 {
 			assert.Equal(t, commonpb.ErrorCode_Success, resp.Status.ErrorCode)
 		} else {
 			assert.NotEqual(t, commonpb.ErrorCode_Success, resp.Status.ErrorCode)

internal/rootcoord/scheduler_test.go

@@ -190,9 +190,13 @@ func Test_scheduler_updateDdlMinTsLoop(t *testing.T) {
 		paramtable.Get().Save(Params.ProxyCfg.TimeTickInterval.Key, "1")
 		s.Start()
 
-		time.Sleep(time.Millisecond * 4)
-
-		assert.Greater(t, s.GetMinDdlTs(), Timestamp(100))
+		for i := 0; i < 100; i++ {
+			if s.GetMinDdlTs() > Timestamp(100) {
+				break
+			}
+			assert.True(t, i < 100)
+			time.Sleep(time.Millisecond)
+		}
 
 		// add task to queue.
 		n := 10

internal/util/paramtable/component_param.go

@@ -579,6 +579,7 @@ type rootCoordConfig struct {
 	MinSegmentSizeToEnableIndex ParamItem `refreshable:"true"`
 	ImportTaskExpiration        ParamItem `refreshable:"true"`
 	ImportTaskRetention         ParamItem `refreshable:"true"`
+	ImportMaxPendingTaskCount   ParamItem `refreshable:"true"`
 	ImportTaskSubPath           ParamItem `refreshable:"true"`
 	EnableActiveStandby         ParamItem `refreshable:"false"`
 }
@@ -626,6 +627,13 @@ func (p *rootCoordConfig) init(base *BaseTable) {
 	}
 	p.ImportTaskSubPath.Init(base.mgr)
 
+	p.ImportMaxPendingTaskCount = ParamItem{
+		Key:          "rootCoord.importMaxPendingTaskCount",
+		Version:      "2.2.2",
+		DefaultValue: strconv.Itoa(65535),
+	}
+	p.ImportMaxPendingTaskCount.Init(base.mgr)
+
 	p.EnableActiveStandby = ParamItem{
 		Key:          "rootCoord.enableActiveStandby",
 		Version:      "2.2.0",