fix: wlock for meta update tag value

source/dnode/vnode/src/meta/metaTable.c

@@ -361,8 +361,9 @@ int metaAlterSTable(SMeta *pMeta, int64_t version, SVCreateStbReq *pReq) {
   // update uid index
   metaUpdateUidIdx(pMeta, &nStbEntry);
 
-  if (oStbEntry.pBuf) taosMemoryFree(oStbEntry.pBuf);
   metaULock(pMeta);
+
+  if (oStbEntry.pBuf) taosMemoryFree(oStbEntry.pBuf);
   tDecoderClear(&dc);
   tdbTbcClose(pTbDbc);
   tdbTbcClose(pUidIdxc);
@@ -416,20 +417,22 @@ int metaCreateTable(SMeta *pMeta, int64_t version, SVCreateTbReq *pReq, STableMe
     me.ctbEntry.pTags = pReq->ctb.pTag;
 
 #ifdef TAG_FILTER_DEBUG
-    SArray* pTagVals = NULL;
-    int32_t code = tTagToValArray((STag*)pReq->ctb.pTag, &pTagVals);
+    SArray *pTagVals = NULL;
+    int32_t code = tTagToValArray((STag *)pReq->ctb.pTag, &pTagVals);
     for (int i = 0; i < taosArrayGetSize(pTagVals); i++) {
-      STagVal* pTagVal = (STagVal*)taosArrayGet(pTagVals, i);
+      STagVal *pTagVal = (STagVal *)taosArrayGet(pTagVals, i);
 
       if (IS_VAR_DATA_TYPE(pTagVal->type)) {
-        char* buf = taosMemoryCalloc(pTagVal->nData + 1, 1);
+        char *buf = taosMemoryCalloc(pTagVal->nData + 1, 1);
         memcpy(buf, pTagVal->pData, pTagVal->nData);
-        metaDebug("metaTag table:%s varchar index:%d cid:%d type:%d value:%s", pReq->name, i, pTagVal->cid, pTagVal->type, buf);
+        metaDebug("metaTag table:%s varchar index:%d cid:%d type:%d value:%s", pReq->name, i, pTagVal->cid,
+                  pTagVal->type, buf);
         taosMemoryFree(buf);
       } else {
         double val = 0;
         GET_TYPED_DATA(val, double, pTagVal->type, &pTagVal->i64);
-        metaDebug("metaTag table:%s number index:%d cid:%d type:%d value:%f", pReq->name, i, pTagVal->cid, pTagVal->type, val);
+        metaDebug("metaTag table:%s number index:%d cid:%d type:%d value:%f", pReq->name, i, pTagVal->cid,
+                  pTagVal->type, val);
       }
     }
 #endif
@@ -919,6 +922,8 @@ static int metaUpdateTableTagVal(SMeta *pMeta, int64_t version, SVAlterTbReq *pA
     taosArrayDestroy(pTagArray);
   }
 
+  metaWLock(pMeta);
+
   // save to table.db
   metaSaveToTbDb(pMeta, &ctbEntry);
 
@@ -933,6 +938,8 @@ static int metaUpdateTableTagVal(SMeta *pMeta, int64_t version, SVAlterTbReq *pA
   tdbTbUpsert(pMeta->pCtbIdx, &ctbIdxKey, sizeof(ctbIdxKey), ctbEntry.ctbEntry.pTags,
               ((STag *)(ctbEntry.ctbEntry.pTags))->len, &pMeta->txn);
 
+  metaULock(pMeta);
+
   tDecoderClear(&dc1);
   tDecoderClear(&dc2);
   if (ctbEntry.ctbEntry.pTags) taosMemoryFree((void *)ctbEntry.ctbEntry.pTags);