fix: free stream/sma obj in trans

source/dnode/mnode/impl/src/mndTrans.c

@@ -800,6 +800,11 @@ static bool mndCheckTransConflict(SMnode *pMnode, STrans *pNew) {
   return conflict;
 }
 
+ static void mndTransFreeObj(SSdb *pSdb) {
+  sdbFreeRowsByType(pSdb, SDB_STREAM);
+  sdbFreeRowsByType(pSdb, SDB_SMA);
+}
+
 int32_t mndTransPrepare(SMnode *pMnode, STrans *pTrans) {
   if (pTrans->conflict == TRN_CONFLICT_DB || pTrans->conflict == TRN_CONFLICT_DB_INSIDE) {
     if (strlen(pTrans->dbname1) == 0 && strlen(pTrans->dbname2) == 0) {
@@ -826,6 +831,9 @@ int32_t mndTransPrepare(SMnode *pMnode, STrans *pTrans) {
     mError("trans:%d, failed to prepare since %s", pTrans->id, terrstr());
     return -1;
   }
+
+  mndTransFreeObj(pMnode->pSdb);
+
   mDebug("trans:%d, prepare finished", pTrans->id);
 
   STrans *pNew = mndAcquireTrans(pMnode, pTrans->id);

source/dnode/mnode/sdb/inc/sdb.h

@@ -367,6 +367,7 @@ int64_t sdbGetTableVer(SSdb *pSdb, ESdbType type);
  */
 void sdbSetApplyInfo(SSdb *pSdb, int64_t index, int64_t term, int64_t config);
 void sdbGetCommitInfo(SSdb *pSdb, int64_t *index, int64_t *term, int64_t *config);
+void sdbFreeRowsByType(SSdb *pSdb, ESdbType type);
 
 SSdbRaw *sdbAllocRaw(ESdbType type, int8_t sver, int32_t dataLen);
 void     sdbFreeRaw(SSdbRaw *pRaw);

source/dnode/mnode/sdb/src/sdb.c

@@ -65,6 +65,25 @@ SSdb *sdbInit(SSdbOpt *pOption) {
   return pSdb;
 }
 
+void sdbFreeRowsByType(SSdb *pSdb, ESdbType type) {
+  SHashObj *hash = pSdb->hashObjs[type];
+  if (hash == NULL || !taosHashGetSize(hash)) {
+    return;
+  }
+
+  SSdbRow **ppRow = taosHashIterate(hash, NULL);
+  while (ppRow != NULL) {
+    SSdbRow *pRow = *ppRow;
+    if (pRow == NULL) {
+      ppRow = taosHashIterate(hash, ppRow);
+      continue;
+    }
+    sdbFreeRow(pSdb, pRow, false);
+    ppRow = taosHashIterate(hash, ppRow);
+  }
+  taosHashClear(hash);
+}
+
 void sdbCleanup(SSdb *pSdb) {
   mDebug("start to cleanup sdb");