diff --git a/source/libs/sync/src/syncRaftLog.c b/source/libs/sync/src/syncRaftLog.c
index 03c3fe154d..ca6d3c314f 100644
--- a/source/libs/sync/src/syncRaftLog.c
+++ b/source/libs/sync/src/syncRaftLog.c
@@ -192,6 +192,8 @@ SyncTerm raftLogLastTerm(struct SSyncLogStore* pLogStore) {
   return SYNC_TERM_INVALID;
 }
 
+static inline bool raftLogForceSync(SSyncRaftEntry* pEntry) { return (pEntry->originalRpcType == TDMT_VND_COMMIT); }
+
 static int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncRaftEntry* pEntry) {
   SSyncLogStoreData* pData = pLogStore->data;
   SWal*              pWal = pData->pWal;
@@ -219,9 +221,8 @@ static int32_t raftLogAppendEntry(struct SSyncLogStore* pLogStore, SSyncRaftEntr
 
   ASSERT(pEntry->index == index);
 
-  if (pEntry->originalRpcType == TDMT_VND_COMMIT) {
-    walFsync(pWal, true);
-  }
+  bool forceSync = raftLogForceSync(pEntry);
+  walFsync(pWal, forceSync);
 
   sNTrace(pData->pSyncNode, "write index:%" PRId64 ", type:%s, origin type:%s, elapsed:%" PRId64, pEntry->index,
           TMSG_INFO(pEntry->msgType), TMSG_INFO(pEntry->originalRpcType), tsElapsed);
diff --git a/source/libs/tdb/src/db/tdbBtree.c b/source/libs/tdb/src/db/tdbBtree.c
index 029039f911..4f0682a617 100644
--- a/source/libs/tdb/src/db/tdbBtree.c
+++ b/source/libs/tdb/src/db/tdbBtree.c
@@ -1316,11 +1316,11 @@ static int tdbBtreeDecodePayload(SPage *pPage, const SCell *pCell, int nHeader,
       }
       TDB_CELLDECODER_SET_FREE_KEY(pDecoder);
 
-      memcpy(pDecoder->pKey, pCell + nHeader, nLocal - 4);
-      nLeft -= nLocal - 4;
-      nLeftKey -= nLocal - 4;
+      memcpy(pDecoder->pKey, pCell + nHeader, nLocal - nHeader - sizeof(pgno));
+      nLeft -= nLocal - nHeader - sizeof(pgno);
+      nLeftKey -= nLocal - nHeader - sizeof(pgno);
 
-      memcpy(&pgno, pCell + nHeader + nLocal - 4, sizeof(pgno));
+      memcpy(&pgno, pCell + nLocal - sizeof(pgno), sizeof(pgno));
 
       int lastKeyPageSpace = 0;
       // load left key & val to ovpages
@@ -1346,9 +1346,11 @@ static int tdbBtreeDecodePayload(SPage *pPage, const SCell *pCell, int nHeader,
 
         if (lastKeyPage) {
           if (lastKeyPageSpace >= vLen) {
-            pDecoder->pVal = ofpCell + kLen - nLeftKey;
+            if (vLen > 0) {
+              pDecoder->pVal = ofpCell + kLen - nLeftKey;
 
-            nLeft -= vLen;
+              nLeft -= vLen;
+            }
             pgno = 0;
           } else {
             // read partial val to local
diff --git a/source/libs/wal/src/walWrite.c b/source/libs/wal/src/walWrite.c
index db31692da9..d4ea526b78 100644
--- a/source/libs/wal/src/walWrite.c
+++ b/source/libs/wal/src/walWrite.c
@@ -637,11 +637,6 @@ int32_t walWrite(SWal *pWal, int64_t index, tmsg_t msgType, const void *body, in
 void walFsync(SWal *pWal, bool forceFsync) {
   taosThreadMutexLock(&pWal->mutex);
   if (forceFsync || (pWal->cfg.level == TAOS_WAL_FSYNC && pWal->cfg.fsyncPeriod == 0)) {
-    wTrace("vgId:%d, fileId:%" PRId64 ".idx, do fsync", pWal->cfg.vgId, walGetCurFileFirstVer(pWal));
-    if (taosFsyncFile(pWal->pIdxFile) < 0) {
-      wError("vgId:%d, file:%" PRId64 ".idx, fsync failed since %s", pWal->cfg.vgId, walGetCurFileFirstVer(pWal),
-             strerror(errno));
-    }
     wTrace("vgId:%d, fileId:%" PRId64 ".log, do fsync", pWal->cfg.vgId, walGetCurFileFirstVer(pWal));
     if (taosFsyncFile(pWal->pLogFile) < 0) {
       wError("vgId:%d, file:%" PRId64 ".log, fsync failed since %s", pWal->cfg.vgId, walGetCurFileFirstVer(pWal),
diff --git a/tests/system-test/6-cluster/5dnode3mnodeDrop.py b/tests/system-test/6-cluster/5dnode3mnodeDrop.py
index de9207ddd8..4f3916a487 100644
--- a/tests/system-test/6-cluster/5dnode3mnodeDrop.py
+++ b/tests/system-test/6-cluster/5dnode3mnodeDrop.py
@@ -112,7 +112,8 @@ class TDTestCase:
             dnode_first_port = dnode.cfgDict["firstEp"].split(":")[-1]
             cmd = f" taos -h {dnode_first_host} -P {dnode_first_port} -s ' create dnode \"{dnode_id} \" ' ;"
             tdLog.debug(cmd)
-            os.system(cmd)
+            if os.system(cmd) != 0:
+                raise Exception("failed to execute system command. cmd: %s" % cmd)
 
         time.sleep(2)
         tdLog.info(" create cluster with %d dnode  done! " %dnodes_nums)
@@ -292,6 +293,8 @@ class TDTestCase:
                         tdLog.debug("drop mnode %d successfully"%(i+1))
                         break
                     count+=1
+                self.wait_for_transactions(20)
+
                 tdLog.debug("create mnode on dnode %d"%(i+1))
                 tdSql.execute("create mnode on dnode %d"%(i+1))
                 count=0
@@ -299,12 +302,24 @@ class TDTestCase:
                     time.sleep(1)
                     tdSql.query("select * from information_schema.ins_mnodes;")
                     if tdSql.checkRows(3):
-                        tdLog.debug("drop mnode %d successfully"%(i+1))
+                        tdLog.debug("create mnode %d successfully"%(i+1))
                         break
                     count+=1
+                self.wait_for_transactions(20)
             dropcount+=1
         self.check3mnode()
 
+    def wait_for_transactions(self, timeout):
+        count=0
+        while count<timeout:
+            time.sleep(1)
+            tdSql.query("show transactions;")
+            if tdSql.checkRows(0):
+                tdLog.debug("transactions completed successfully")
+                break
+            count+=1
+        if count >= timeout:
+            tdLog.debug("transactions not finished before timeout (%d secs)", timeout)
 
     def getConnection(self, dnode):
         host = dnode.cfgDict["fqdn"]