diff --git a/source/libs/sync/src/syncAppendEntries.c b/source/libs/sync/src/syncAppendEntries.c
index 170a57a7a9..80e0cbbf99 100644
--- a/source/libs/sync/src/syncAppendEntries.c
+++ b/source/libs/sync/src/syncAppendEntries.c
@@ -383,6 +383,8 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, SyncAppendEntries* pMsg) {
           snprintf(logBuf, sizeof(logBuf), "ignore, truncate error, append-index:%" PRId64, appendIndex);
           syncLogRecvAppendEntries(ths, pMsg, logBuf);
 
+          syncEntryDestory(pLocalEntry);
+          syncEntryDestory(pAppendEntry);
           goto _IGNORE;
         }
 
@@ -393,6 +395,8 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, SyncAppendEntries* pMsg) {
           snprintf(logBuf, sizeof(logBuf), "ignore, append error, append-index:%" PRId64, appendIndex);
           syncLogRecvAppendEntries(ths, pMsg, logBuf);
 
+          syncEntryDestory(pLocalEntry);
+          syncEntryDestory(pAppendEntry);
           goto _IGNORE;
         }
       }
@@ -408,6 +412,8 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, SyncAppendEntries* pMsg) {
           snprintf(logBuf, sizeof(logBuf), "ignore, log not exist, truncate error, append-index:%" PRId64, appendIndex);
           syncLogRecvAppendEntries(ths, pMsg, logBuf);
 
+          syncEntryDestory(pLocalEntry);
+          syncEntryDestory(pAppendEntry);
           goto _IGNORE;
         }
 
@@ -418,6 +424,8 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, SyncAppendEntries* pMsg) {
           snprintf(logBuf, sizeof(logBuf), "ignore, log not exist, append error, append-index:%" PRId64, appendIndex);
           syncLogRecvAppendEntries(ths, pMsg, logBuf);
 
+          syncEntryDestory(pLocalEntry);
+          syncEntryDestory(pAppendEntry);
           goto _IGNORE;
         }
 
@@ -427,33 +435,12 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, SyncAppendEntries* pMsg) {
         snprintf(logBuf, sizeof(logBuf), "ignore, get local entry error, append-index:%" PRId64, appendIndex);
         syncLogRecvAppendEntries(ths, pMsg, logBuf);
 
+        syncEntryDestory(pLocalEntry);
+        syncEntryDestory(pAppendEntry);
         goto _IGNORE;
       }
     }
 
-#if 0
-    if (code != 0 && terrno == TSDB_CODE_WAL_LOG_NOT_EXIST) {
-      code = ths->pLogStore->syncLogTruncate(ths->pLogStore, appendIndex);
-      ASSERT(code == 0);
-
-      code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
-      ASSERT(code == 0);
-
-    } else {
-      ASSERT(code == 0);
-
-      if (pLocalEntry->term == pAppendEntry->term) {
-        // do nothing
-      } else {
-        code = ths->pLogStore->syncLogTruncate(ths->pLogStore, appendIndex);
-        ASSERT(code == 0);
-
-        code = ths->pLogStore->syncLogAppendEntry(ths->pLogStore, pAppendEntry);
-        ASSERT(code == 0);
-      }
-    }
-#endif
-
     // update match index
     pReply->matchIndex = pAppendEntry->index;
 
diff --git a/source/libs/sync/src/syncMain.c b/source/libs/sync/src/syncMain.c
index fd2a1b22b4..1f24c7c403 100644
--- a/source/libs/sync/src/syncMain.c
+++ b/source/libs/sync/src/syncMain.c
@@ -336,7 +336,10 @@ char* syncNodePeerState2Str(const SSyncNode* pSyncNode) {
 
   for (int32_t i = 0; i < pSyncNode->replicaNum; ++i) {
     SPeerState* pState = syncNodeGetPeerState((SSyncNode*)pSyncNode, &(pSyncNode->replicasId[i]));
-    ASSERT(pState != NULL);
+    if (pState == NULL) {
+      sError("vgId:%d, replica maybe dropped", pSyncNode->vgId);
+      break;
+    }
 
     p = pStr + useLen;
     use = snprintf(p, leftLen, "%d:%" PRId64 " ,%" PRId64, i, pState->lastSendIndex, pState->lastSendTime);
@@ -3495,6 +3498,7 @@ SPeerState* syncNodeGetPeerState(SSyncNode* ths, const SRaftId* pDestId) {
 bool syncNodeNeedSendAppendEntries(SSyncNode* ths, const SRaftId* pDestId, const SyncAppendEntries* pMsg) {
   SPeerState* pState = syncNodeGetPeerState(ths, pDestId);
   if (pState == NULL) {
+    sError("vgId:%d, replica maybe dropped", ths->vgId);
     return false;
   }
 
diff --git a/source/libs/sync/src/syncReplication.c b/source/libs/sync/src/syncReplication.c
index e040310e15..7296e30e02 100644
--- a/source/libs/sync/src/syncReplication.c
+++ b/source/libs/sync/src/syncReplication.c
@@ -163,7 +163,10 @@ int32_t syncNodeSendAppendEntries(SSyncNode* pSyncNode, const SRaftId* destRaftI
   syncNodeSendMsgById(destRaftId, pSyncNode, &rpcMsg);
 
   SPeerState* pState = syncNodeGetPeerState(pSyncNode, destRaftId);
-  ASSERT(pState != NULL);
+  if (pState == NULL) {
+    sError("vgId:%d, replica maybe dropped", pSyncNode->vgId);
+    return 0;
+  }
 
   if (pMsg->dataLen > 0) {
     pState->lastSendIndex = pMsg->prevLogIndex + 1;