diff --git a/source/libs/catalog/src/ctgCache.c b/source/libs/catalog/src/ctgCache.c
index 637cb97d3a..462678f79a 100644
--- a/source/libs/catalog/src/ctgCache.c
+++ b/source/libs/catalog/src/ctgCache.c
@@ -542,6 +542,7 @@ int32_t ctgEnqueue(SCatalog* pCtg, SCtgCacheOperation *operation) {
 
   if (operation->syncOp) {
     tsem_wait(&operation->rspSem);
+    taosMemoryFree(operation);
   }
 
   return TSDB_CODE_SUCCESS;
@@ -1612,6 +1613,30 @@ void ctgUpdateThreadUnexpectedStopped(void) {
   if (CTG_IS_LOCKED(&gCtgMgmt.lock) > 0) CTG_UNLOCK(CTG_READ, &gCtgMgmt.lock);
 }
 
+void ctgCleanupCacheQueue(void) {
+  SCtgQNode *node = gCtgMgmt.queue.head->next;
+  SCtgQNode *nodeNext = NULL;
+  
+  while (node) {
+    if (node->op) {
+      taosMemoryFree(node->op->data);
+      if (node->op->syncOp) {
+        tsem_post(&node->op->rspSem);
+      } else {
+        taosMemoryFree(node->op);
+      }
+    }
+
+    nodeNext = node->next;
+    taosMemoryFree(node);
+    
+    node = nodeNext;
+  }
+
+  taosMemoryFreeClear(gCtgMgmt.queue.head);
+  gCtgMgmt.queue.tail = NULL;
+}
+
 void* ctgUpdateThreadFunc(void* param) {
   setThreadName("catalog");
 #ifdef WINDOWS
@@ -1627,6 +1652,7 @@ void* ctgUpdateThreadFunc(void* param) {
     }
     
     if (atomic_load_8((int8_t*)&gCtgMgmt.exit)) {
+      ctgCleanupCacheQueue();
       break;
     }