diff --git a/src/backend/booster/server/pkg/manager/normal/keeper.go b/src/backend/booster/server/pkg/manager/normal/keeper.go
index c201b220..cfa7ef24 100644
--- a/src/backend/booster/server/pkg/manager/normal/keeper.go
+++ b/src/backend/booster/server/pkg/manager/normal/keeper.go
@@ -187,7 +187,7 @@ func (k *keeper) checkTaskBasic(taskID string, wg *sync.WaitGroup) {
 			}
 
 			// 拉起资源超时，此时若有足够的资源，则先启动任务
-			blog.Errorf("keeper: check and find task(%s) starting timeout(%s) since(%s), check if it can be running",
+			blog.Infof("keeper: check and find task(%s) starting timeout(%s) since(%s), check if it can be running",
 				tb.ID, k.conf.KeepStartingTimeout.String(), tb.Status.LaunchTime.String())
 			if task.EnoughAvailableResource() {
 				tb.Status.Ready()
diff --git a/src/backend/booster/server/pkg/manager/normal/selector.go b/src/backend/booster/server/pkg/manager/normal/selector.go
index e107bf9b..b5493b5c 100644
--- a/src/backend/booster/server/pkg/manager/normal/selector.go
+++ b/src/backend/booster/server/pkg/manager/normal/selector.go
@@ -161,9 +161,9 @@ func (s *selector) pick(egn engine.Engine, tqg *engine.TaskQueueGroup, queueName
 
 	if err = egn.LaunchTask(tb, queueName); err != nil {
 		if err != engine.ErrorNoEnoughResources {
-			blog.Errorf("selector: launch task(%s) from engine(%s) queue(%s) failed: %v", tb.ID, egn.Name(), queueName, err)
+			blog.Infof("selector: launch task(%s) from engine(%s) queue(%s) failed: %v", tb.ID, egn.Name(), queueName, err)
 		}
-		blog.Errorf("selector: launch task(%s) from engine(%s) queue(%s) failed: %v", tb.ID, egn.Name(), queueName, err)
+		blog.Infof("selector: launch task(%s) from engine(%s) queue(%s) failed: %v", tb.ID, egn.Name(), queueName, err)
 		return
 	}
 
diff --git a/src/backend/booster/server/pkg/manager/normal/tracker.go b/src/backend/booster/server/pkg/manager/normal/tracker.go
index 48000ce0..d4ff4b2f 100644
--- a/src/backend/booster/server/pkg/manager/normal/tracker.go
+++ b/src/backend/booster/server/pkg/manager/normal/tracker.go
@@ -169,7 +169,7 @@ func (t *tracker) isFinishStarting(taskID string, egn engine.Engine) bool {
 
 	ok, err := egn.LaunchDone(taskID)
 	if err != nil {
-		blog.Errorf("tracker: check task(%s) launch done failed: %v", taskID, err)
+		blog.Infof("tracker: check task(%s) launch done failed: %v", taskID, err)
 		return false
 	}
 
diff --git a/src/backend/booster/server/pkg/resource/crm/broker.go b/src/backend/booster/server/pkg/resource/crm/broker.go
index 7474ae6c..752fbf93 100644
--- a/src/backend/booster/server/pkg/resource/crm/broker.go
+++ b/src/backend/booster/server/pkg/resource/crm/broker.go
@@ -359,7 +359,8 @@ func (b *Broker) launch() error {
 		if availableInstance >= b.param.Instance {
 			return b.param.Instance, nil
 		}
-
+		blog.Errorf("crm broker: failed to launch resource(%s) for broker(%s) with user(%s), need (%d) instances"+
+			", only (%d) available", brokerID, b.name, b.user, b.param.Instance, availableInstance)
 		return 0, ErrorBrokerNotEnoughResources
 	}, false)
 	if err == ErrorBrokerNotEnoughResources {
@@ -472,8 +473,9 @@ func (b *Broker) track(resourceID string, startTime time.Time) bool {
 		}
 
 		if !instanceok {
-			blog.Errorf("crm broker: track resource(%s) from broker(%s) with user(%s), not found expected %d instances, release it",
-				resourceID, b.name, b.user, b.param.Instance)
+			blog.Errorf("crm broker: track resource(%s) from broker(%s) with user(%s), not found "+
+				"expected %d instances after %f seconds, release it",
+				resourceID, b.name, b.user, b.param.Instance, time.Since(startTime).Seconds())
 			// release this resource
 			err = b.mgr.release(resource.resourceID, b.user)
 			if err != nil {
diff --git a/src/backend/booster/server/pkg/resource/crm/manager.go b/src/backend/booster/server/pkg/resource/crm/manager.go
index 0f9e24f2..b44991e2 100644
--- a/src/backend/booster/server/pkg/resource/crm/manager.go
+++ b/src/backend/booster/server/pkg/resource/crm/manager.go
@@ -1042,10 +1042,15 @@ func (rm *resourceManager) checkBroker(broker *Broker) {
 		for i := 0; i < delta; i++ {
 			if err := broker.Launch(); err != nil {
 				switch err {
-				case ErrorBrokerNotEnoughResources, ErrorBrokeringUnderCoolingTime:
+				case ErrorBrokerNotEnoughResources:
 					blog.Errorf("crm: try launching resource for broker(%s) with user(%s) failed: %v",
 						broker.name, broker.user, err)
 					return
+				case ErrorBrokeringUnderCoolingTime:
+					blog.Warnf("crm: try launching resource for broker(%s) with user(%s) failed: %v",
+						broker.name, broker.user, err)
+
+					return
 				}
 				blog.Errorf("crm: try launching resource for broker(%s) with user(%s) failed: %v",
 					broker.name, broker.user, err)