diff --git a/weed/messaging/broker/topic_manager.go b/weed/messaging/broker/topic_manager.go
index e5cebb42d..7cc8601eb 100644
--- a/weed/messaging/broker/topic_manager.go
+++ b/weed/messaging/broker/topic_manager.go
@@ -36,14 +36,14 @@ type TopicCursor struct {
 
 type TopicManager struct {
 	sync.Mutex
-	topicControls map[TopicPartition]*TopicCursor
-	broker        *MessageBroker
+	topicCursors map[TopicPartition]*TopicCursor
+	broker       *MessageBroker
 }
 
 func NewTopicManager(messageBroker *MessageBroker) *TopicManager {
 	return &TopicManager{
-		topicControls: make(map[TopicPartition]*TopicCursor),
-		broker:        messageBroker,
+		topicCursors: make(map[TopicPartition]*TopicCursor),
+		broker:       messageBroker,
 	}
 }
 
@@ -79,10 +79,10 @@ func (tm *TopicManager) RequestLock(partition TopicPartition, topicConfig *messa
 	tm.Lock()
 	defer tm.Unlock()
 
-	lock, found := tm.topicControls[partition]
+	lock, found := tm.topicCursors[partition]
 	if !found {
 		lock = &TopicCursor{}
-		tm.topicControls[partition] = lock
+		tm.topicCursors[partition] = lock
 		lock.subscriptions = NewTopicPartitionSubscriptions()
 		lock.logBuffer = tm.buildLogBuffer(lock, partition, topicConfig)
 	}
@@ -98,7 +98,7 @@ func (tm *TopicManager) ReleaseLock(partition TopicPartition, isPublisher bool)
 	tm.Lock()
 	defer tm.Unlock()
 
-	lock, found := tm.topicControls[partition]
+	lock, found := tm.topicCursors[partition]
 	if !found {
 		return
 	}
@@ -108,7 +108,7 @@ func (tm *TopicManager) ReleaseLock(partition TopicPartition, isPublisher bool)
 		lock.subscriberCount--
 	}
 	if lock.subscriberCount <= 0 && lock.publisherCount <= 0 {
-		delete(tm.topicControls, partition)
+		delete(tm.topicCursors, partition)
 		lock.logBuffer.Shutdown()
 	}
 }
@@ -117,7 +117,7 @@ func (tm *TopicManager) ListTopicPartitions() (tps []TopicPartition) {
 	tm.Lock()
 	defer tm.Unlock()
 
-	for k := range tm.topicControls {
+	for k := range tm.topicCursors {
 		tps = append(tps, k)
 	}
 	return