fix index mem leak

include/libs/index/index.h

@@ -208,7 +208,7 @@ int32_t doFilterTag(const SNode* pFilterNode, SIndexMetaArg* metaArg, SArray* re
  * destory index env
  *
  */
-void indexCleanUp();
+void indexCleanup();
 
 #ifdef __cplusplus
 }

source/dnode/mgmt/node_mgmt/src/dmMgmt.c

@@ -16,6 +16,7 @@
 #define _DEFAULT_SOURCE
 #include "dmMgmt.h"
 #include "dmNodes.h"
+#include "index.h"
 #include "qworker.h"
 
 static bool dmRequireNode(SDnode *pDnode, SMgmtWrapper *pWrapper) {
@@ -213,6 +214,7 @@ void dmCleanupDnode(SDnode *pDnode) {
   dmCleanupServer(pDnode);
   dmClearVars(pDnode);
   rpcCleanup();
+  indexCleanup();
   dDebug("dnode is closed, ptr:%p", pDnode);
 }
 

source/libs/index/src/index.c

@@ -65,9 +65,10 @@ void indexInit() {
   indexQhandle = taosInitScheduler(INDEX_QUEUE_SIZE, INDEX_NUM_OF_THREADS, "index");
   indexRefMgt = taosOpenRef(10, indexDestroy);
 }
-void indexCleanUp() {
+void indexCleanup() {
   // refacto later
   taosCleanUpScheduler(indexQhandle);
+  taosCloseRef(indexRefMgt);
 }
 
 typedef struct SIdxColInfo {