fix: resolve coverity scan issues in sync and wal

source/libs/sync/inc/syncPipeline.h

@@ -68,7 +68,7 @@ void             syncNodeLogReplMgrDestroy(SSyncNode* pNode);
 
 // access
 static FORCE_INLINE int64_t syncLogGetRetryBackoffTimeMs(SSyncLogReplMgr* pMgr) {
-  return (1 << pMgr->retryBackoff) * SYNC_LOG_REPL_RETRY_WAIT_MS;
+  return ((int64_t)1 << pMgr->retryBackoff) * SYNC_LOG_REPL_RETRY_WAIT_MS;
 }
 
 static FORCE_INLINE int32_t syncLogGetNextRetryBackoff(SSyncLogReplMgr* pMgr) {

source/libs/sync/inc/syncRaftEntry.h

@@ -49,39 +49,6 @@ static FORCE_INLINE bool syncLogIsReplicationBarrier(SSyncRaftEntry* pEntry) {
   return pEntry->originalRpcType == TDMT_SYNC_NOOP;
 }
 
-typedef struct SRaftEntryHashCache {
-  SHashObj*     pEntryHash;
-  int32_t       maxCount;
-  int32_t       currentCount;
-  TdThreadMutex mutex;
-  SSyncNode*    pSyncNode;
-} SRaftEntryHashCache;
-
-SRaftEntryHashCache* raftCacheCreate(SSyncNode* pSyncNode, int32_t maxCount);
-void                 raftCacheDestroy(SRaftEntryHashCache* pCache);
-int32_t              raftCachePutEntry(struct SRaftEntryHashCache* pCache, SSyncRaftEntry* pEntry);
-int32_t              raftCacheGetEntry(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry);
-int32_t              raftCacheGetEntryP(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry);
-int32_t              raftCacheDelEntry(struct SRaftEntryHashCache* pCache, SyncIndex index);
-int32_t              raftCacheGetAndDel(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry);
-int32_t              raftCacheClear(struct SRaftEntryHashCache* pCache);
-
-typedef struct SRaftEntryCache {
-  SSkipList*    pSkipList;
-  int32_t       maxCount;
-  int32_t       currentCount;
-  int32_t       refMgr;
-  TdThreadMutex mutex;
-  SSyncNode*    pSyncNode;
-} SRaftEntryCache;
-
-SRaftEntryCache* raftEntryCacheCreate(SSyncNode* pSyncNode, int32_t maxCount);
-void             raftEntryCacheDestroy(SRaftEntryCache* pCache);
-int32_t          raftEntryCachePutEntry(struct SRaftEntryCache* pCache, SSyncRaftEntry* pEntry);
-int32_t          raftEntryCacheGetEntry(struct SRaftEntryCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry);
-int32_t          raftEntryCacheGetEntryP(struct SRaftEntryCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry);
-int32_t          raftEntryCacheClear(struct SRaftEntryCache* pCache, int32_t count);
-
 #ifdef __cplusplus
 }
 #endif

source/libs/sync/src/syncAppendEntries.c

@@ -104,6 +104,8 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   SyncAppendEntries* pMsg = pRpcMsg->pCont;
   SRpcMsg            rpcRsp = {0};
   bool               accepted = false;
+  SSyncRaftEntry*    pEntry = NULL;
+
   // if already drop replica, do not process
   if (!syncNodeInRaftGroup(ths, &(pMsg->srcId))) {
     syncLogRecvAppendEntries(ths, pMsg, "not in my config");
@@ -137,14 +139,13 @@ int32_t syncNodeOnAppendEntries(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
   syncNodeStepDown(ths, pMsg->term);
   syncNodeResetElectTimer(ths);
 
-  if (pMsg->dataLen < (int32_t)sizeof(SSyncRaftEntry)) {
+  if (pMsg->dataLen < sizeof(SSyncRaftEntry)) {
     sError("vgId:%d, incomplete append entries received. prev index:%" PRId64 ", term:%" PRId64 ", datalen:%d",
            ths->vgId, pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen);
     goto _IGNORE;
   }
 
-  SSyncRaftEntry* pEntry = syncBuildRaftEntryFromAppendEntries(pMsg);
-
+  pEntry = syncBuildRaftEntryFromAppendEntries(pMsg);
   if (pEntry == NULL) {
     sError("vgId:%d, failed to get raft entry from append entries since %s", ths->vgId, terrstr());
     goto _IGNORE;
@@ -191,5 +192,6 @@ _out:
 
 _IGNORE:
   rpcFreeCont(rpcRsp.pCont);
+  syncEntryDestroy(pEntry);
   return 0;
 }

source/libs/sync/src/syncAppendEntriesReply.c

@@ -40,7 +40,7 @@
 //
 
 int32_t syncNodeOnAppendEntriesReply(SSyncNode* ths, const SRpcMsg* pRpcMsg) {
-  SyncAppendEntriesReply* pMsg = pRpcMsg->pCont;
+  SyncAppendEntriesReply* pMsg = (SyncAppendEntriesReply*)pRpcMsg->pCont;
   int32_t ret = 0;
 
   // if already drop replica, do not process

source/libs/sync/src/syncMain.c

@@ -1126,29 +1126,18 @@ int32_t syncNodeStartStandBy(SSyncNode* pSyncNode) {
 }
 
 void syncNodePreClose(SSyncNode* pSyncNode) {
-  if (pSyncNode != NULL && pSyncNode->pFsm != NULL && pSyncNode->pFsm->FpApplyQueueItems != NULL) {
-    while (1) {
-      int32_t aqItems = pSyncNode->pFsm->FpApplyQueueItems(pSyncNode->pFsm);
-      sTrace("vgId:%d, pre close, %d items in apply queue", pSyncNode->vgId, aqItems);
-      if (aqItems == 0 || aqItems == -1) {
-        break;
-      }
-      taosMsleep(20);
-    }
-  }
-
-#if 0
-  if (pSyncNode->pNewNodeReceiver != NULL) {
-    if (snapshotReceiverIsStart(pSyncNode->pNewNodeReceiver)) {
-      snapshotReceiverStop(pSyncNode->pNewNodeReceiver);
+  ASSERT(pSyncNode != NULL);
+  ASSERT(pSyncNode->pFsm != NULL);
+  ASSERT(pSyncNode->pFsm->FpApplyQueueItems != NULL);
+
+  while (1) {
+    int32_t aqItems = pSyncNode->pFsm->FpApplyQueueItems(pSyncNode->pFsm);
+    sTrace("vgId:%d, pre close, %d items in apply queue", pSyncNode->vgId, aqItems);
+    if (aqItems == 0 || aqItems == -1) {
+      break;
     }
-
-    sDebug("vgId:%d, snapshot receiver destroy while preclose sync node, data:%p", pSyncNode->vgId,
-           pSyncNode->pNewNodeReceiver);
-    snapshotReceiverDestroy(pSyncNode->pNewNodeReceiver);
-    pSyncNode->pNewNodeReceiver = NULL;
+    taosMsleep(20);
   }
-#endif
 
   // stop elect timer
   syncNodeStopElectTimer(pSyncNode);
@@ -1461,7 +1450,7 @@ void syncNodeDoConfigChange(SSyncNode* pSyncNode, SSyncCfg* pNewConfig, SyncInde
   }
 
   // log begin config change
-  sNInfo(pSyncNode, "begin do config change, from %d to %d", pSyncNode->vgId, oldConfig.replicaNum,
+  sNInfo(pSyncNode, "begin do config change, from %d to %d, replicas:%d", pSyncNode->vgId, oldConfig.replicaNum,
          pNewConfig->replicaNum);
 
   if (IamInNew) {
@@ -1742,8 +1731,7 @@ void syncNodeBecomeLeader(SSyncNode* pSyncNode, const char* debugStr) {
 #endif
 
   // close receiver
-  if (pSyncNode != NULL && pSyncNode->pNewNodeReceiver != NULL &&
-      snapshotReceiverIsStart(pSyncNode->pNewNodeReceiver)) {
+  if (snapshotReceiverIsStart(pSyncNode->pNewNodeReceiver)) {
     snapshotReceiverStop(pSyncNode->pNewNodeReceiver);
   }
 

source/libs/sync/src/syncPipeline.c

@@ -901,7 +901,7 @@ int32_t syncLogReplMgrProcessReplyAsNormal(SSyncLogReplMgr* pMgr, SSyncNode* pNo
       int64_t firstSentMs = pMgr->states[pMgr->startIndex % pMgr->size].timeMs;
       int64_t lastSentMs = pMgr->states[(pMgr->endIndex - 1) % pMgr->size].timeMs;
       int64_t timeDiffMs = lastSentMs - firstSentMs;
-      if (timeDiffMs > 0 && timeDiffMs < (SYNC_LOG_REPL_RETRY_WAIT_MS << (pMgr->retryBackoff - 1))) {
+      if (timeDiffMs > 0 && timeDiffMs < ((int64_t)SYNC_LOG_REPL_RETRY_WAIT_MS << (pMgr->retryBackoff - 1))) {
         pMgr->retryBackoff -= 1;
       }
     }
@@ -928,10 +928,6 @@ SSyncLogReplMgr* syncLogReplMgrCreate() {
   ASSERT(pMgr->size == TSDB_SYNC_LOG_BUFFER_SIZE);
 
   return pMgr;
-
-_err:
-  taosMemoryFree(pMgr);
-  return NULL;
 }
 
 void syncLogReplMgrDestroy(SSyncLogReplMgr* pMgr) {

source/libs/sync/src/syncRaftCfg.c

@@ -224,7 +224,7 @@ _OVER:
 
 int32_t syncAddCfgIndex(SSyncNode *pNode, SyncIndex cfgIndex) {
   SRaftCfg *pCfg = &pNode->raftCfg;
-  if (pCfg->configIndexCount <= MAX_CONFIG_INDEX_COUNT) {
+  if (pCfg->configIndexCount < MAX_CONFIG_INDEX_COUNT) {
     return -1;
   }
 

source/libs/sync/src/syncRaftEntry.c

@@ -102,344 +102,3 @@ void syncEntry2OriginalRpc(const SSyncRaftEntry* pEntry, SRpcMsg* pRpcMsg) {
   pRpcMsg->pCont = rpcMallocCont(pRpcMsg->contLen);
   memcpy(pRpcMsg->pCont, pEntry->data, pRpcMsg->contLen);
 }
-
-SRaftEntryHashCache* raftCacheCreate(SSyncNode* pSyncNode, int32_t maxCount) {
-  SRaftEntryHashCache* pCache = taosMemoryMalloc(sizeof(SRaftEntryHashCache));
-  if (pCache == NULL) {
-    sError("vgId:%d, raft cache create error", pSyncNode->vgId);
-    return NULL;
-  }
-
-  pCache->pEntryHash =
-      taosHashInit(sizeof(SyncIndex), taosGetDefaultHashFunction(TSDB_DATA_TYPE_BINARY), true, HASH_NO_LOCK);
-  if (pCache->pEntryHash == NULL) {
-    sError("vgId:%d, raft cache create hash error", pSyncNode->vgId);
-    return NULL;
-  }
-
-  taosThreadMutexInit(&(pCache->mutex), NULL);
-  pCache->maxCount = maxCount;
-  pCache->currentCount = 0;
-  pCache->pSyncNode = pSyncNode;
-
-  return pCache;
-}
-
-void raftCacheDestroy(SRaftEntryHashCache* pCache) {
-  if (pCache != NULL) {
-    taosThreadMutexLock(&pCache->mutex);
-    taosHashCleanup(pCache->pEntryHash);
-    taosThreadMutexUnlock(&pCache->mutex);
-    taosThreadMutexDestroy(&(pCache->mutex));
-    taosMemoryFree(pCache);
-  }
-}
-
-// success, return 1
-// max count, return 0
-// error, return -1
-int32_t raftCachePutEntry(struct SRaftEntryHashCache* pCache, SSyncRaftEntry* pEntry) {
-  taosThreadMutexLock(&pCache->mutex);
-
-  if (pCache->currentCount >= pCache->maxCount) {
-    taosThreadMutexUnlock(&pCache->mutex);
-    return 0;
-  }
-
-  taosHashPut(pCache->pEntryHash, &(pEntry->index), sizeof(pEntry->index), pEntry, pEntry->bytes);
-  ++(pCache->currentCount);
-
-  sNTrace(pCache->pSyncNode, "raft cache add, type:%s,%d, type2:%s,%d, index:%" PRId64 ", bytes:%d",
-          TMSG_INFO(pEntry->msgType), pEntry->msgType, TMSG_INFO(pEntry->originalRpcType), pEntry->originalRpcType,
-          pEntry->index, pEntry->bytes);
-  taosThreadMutexUnlock(&pCache->mutex);
-  return 1;
-}
-
-// success, return 0
-// error, return -1
-// not exist, return -1, terrno = TSDB_CODE_WAL_LOG_NOT_EXIST
-int32_t raftCacheGetEntry(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry) {
-  if (ppEntry == NULL) {
-    return -1;
-  }
-  *ppEntry = NULL;
-
-  taosThreadMutexLock(&pCache->mutex);
-  void* pTmp = taosHashGet(pCache->pEntryHash, &index, sizeof(index));
-  if (pTmp != NULL) {
-    SSyncRaftEntry* pEntry = pTmp;
-    *ppEntry = taosMemoryMalloc(pEntry->bytes);
-    memcpy(*ppEntry, pTmp, pEntry->bytes);
-
-    sNTrace(pCache->pSyncNode, "raft cache get, type:%s,%d, type2:%s,%d, index:%" PRId64,
-            TMSG_INFO((*ppEntry)->msgType), (*ppEntry)->msgType, TMSG_INFO((*ppEntry)->originalRpcType),
-            (*ppEntry)->originalRpcType, (*ppEntry)->index);
-    taosThreadMutexUnlock(&pCache->mutex);
-    return 0;
-  }
-
-  taosThreadMutexUnlock(&pCache->mutex);
-  terrno = TSDB_CODE_WAL_LOG_NOT_EXIST;
-  return -1;
-}
-
-// success, return 0
-// error, return -1
-// not exist, return -1, terrno = TSDB_CODE_WAL_LOG_NOT_EXIST
-int32_t raftCacheGetEntryP(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry) {
-  if (ppEntry == NULL) {
-    return -1;
-  }
-  *ppEntry = NULL;
-
-  taosThreadMutexLock(&pCache->mutex);
-  void* pTmp = taosHashGet(pCache->pEntryHash, &index, sizeof(index));
-  if (pTmp != NULL) {
-    SSyncRaftEntry* pEntry = pTmp;
-    *ppEntry = pEntry;
-
-    sNTrace(pCache->pSyncNode, "raft cache get, type:%s,%d, type2:%s,%d, index:%" PRId64,
-            TMSG_INFO((*ppEntry)->msgType), (*ppEntry)->msgType, TMSG_INFO((*ppEntry)->originalRpcType),
-            (*ppEntry)->originalRpcType, (*ppEntry)->index);
-    taosThreadMutexUnlock(&pCache->mutex);
-    return 0;
-  }
-
-  taosThreadMutexUnlock(&pCache->mutex);
-  terrno = TSDB_CODE_WAL_LOG_NOT_EXIST;
-  return -1;
-}
-
-int32_t raftCacheDelEntry(struct SRaftEntryHashCache* pCache, SyncIndex index) {
-  taosThreadMutexLock(&pCache->mutex);
-  taosHashRemove(pCache->pEntryHash, &index, sizeof(index));
-  --(pCache->currentCount);
-  taosThreadMutexUnlock(&pCache->mutex);
-  return 0;
-}
-
-int32_t raftCacheGetAndDel(struct SRaftEntryHashCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry) {
-  if (ppEntry == NULL) {
-    return -1;
-  }
-  *ppEntry = NULL;
-
-  taosThreadMutexLock(&pCache->mutex);
-  void* pTmp = taosHashGet(pCache->pEntryHash, &index, sizeof(index));
-  if (pTmp != NULL) {
-    SSyncRaftEntry* pEntry = pTmp;
-    *ppEntry = taosMemoryMalloc(pEntry->bytes);
-    memcpy(*ppEntry, pTmp, pEntry->bytes);
-
-    sNTrace(pCache->pSyncNode, "raft cache get-and-del, type:%s,%d, type2:%s,%d, index:%" PRId64,
-            TMSG_INFO((*ppEntry)->msgType), (*ppEntry)->msgType, TMSG_INFO((*ppEntry)->originalRpcType),
-            (*ppEntry)->originalRpcType, (*ppEntry)->index);
-
-    taosHashRemove(pCache->pEntryHash, &index, sizeof(index));
-    --(pCache->currentCount);
-
-    taosThreadMutexUnlock(&pCache->mutex);
-    return 0;
-  }
-
-  taosThreadMutexUnlock(&pCache->mutex);
-  terrno = TSDB_CODE_WAL_LOG_NOT_EXIST;
-  return -1;
-}
-
-int32_t raftCacheClear(struct SRaftEntryHashCache* pCache) {
-  taosThreadMutexLock(&pCache->mutex);
-  taosHashClear(pCache->pEntryHash);
-  pCache->currentCount = 0;
-  taosThreadMutexUnlock(&pCache->mutex);
-  return 0;
-}
-
-static char* keyFn(const void* pData) {
-  SSyncRaftEntry* pEntry = (SSyncRaftEntry*)pData;
-  return (char*)(&(pEntry->index));
-}
-
-static int cmpFn(const void* p1, const void* p2) { return memcmp(p1, p2, sizeof(SyncIndex)); }
-
-static void freeRaftEntry(void* param) {
-  SSyncRaftEntry* pEntry = (SSyncRaftEntry*)param;
-  syncEntryDestroy(pEntry);
-}
-
-SRaftEntryCache* raftEntryCacheCreate(SSyncNode* pSyncNode, int32_t maxCount) {
-  SRaftEntryCache* pCache = taosMemoryMalloc(sizeof(SRaftEntryCache));
-  if (pCache == NULL) {
-    sError("vgId:%d, raft cache create error", pSyncNode->vgId);
-    return NULL;
-  }
-
-  pCache->pSkipList =
-      tSkipListCreate(MAX_SKIP_LIST_LEVEL, TSDB_DATA_TYPE_BINARY, sizeof(SyncIndex), cmpFn, SL_ALLOW_DUP_KEY, keyFn);
-  if (pCache->pSkipList == NULL) {
-    sError("vgId:%d, raft cache create hash error", pSyncNode->vgId);
-    return NULL;
-  }
-
-  taosThreadMutexInit(&(pCache->mutex), NULL);
-  pCache->refMgr = taosOpenRef(10, freeRaftEntry);
-  pCache->maxCount = maxCount;
-  pCache->currentCount = 0;
-  pCache->pSyncNode = pSyncNode;
-
-  return pCache;
-}
-
-void raftEntryCacheDestroy(SRaftEntryCache* pCache) {
-  if (pCache != NULL) {
-    taosThreadMutexLock(&pCache->mutex);
-    tSkipListDestroy(pCache->pSkipList);
-    if (pCache->refMgr != -1) {
-      taosCloseRef(pCache->refMgr);
-      pCache->refMgr = -1;
-    }
-    taosThreadMutexUnlock(&pCache->mutex);
-    taosThreadMutexDestroy(&(pCache->mutex));
-    taosMemoryFree(pCache);
-  }
-}
-
-// success, return 1
-// max count, return 0
-// error, return -1
-int32_t raftEntryCachePutEntry(struct SRaftEntryCache* pCache, SSyncRaftEntry* pEntry) {
-  taosThreadMutexLock(&pCache->mutex);
-
-  if (pCache->currentCount >= pCache->maxCount) {
-    taosThreadMutexUnlock(&pCache->mutex);
-    return 0;
-  }
-
-  SSkipListNode* pSkipListNode = tSkipListPut(pCache->pSkipList, pEntry);
-  ASSERT(pSkipListNode != NULL);
-  ++(pCache->currentCount);
-
-  pEntry->rid = taosAddRef(pCache->refMgr, pEntry);
-  ASSERT(pEntry->rid >= 0);
-
-  sNTrace(pCache->pSyncNode, "raft cache add, type:%s,%d, type2:%s,%d, index:%" PRId64 ", bytes:%d",
-          TMSG_INFO(pEntry->msgType), pEntry->msgType, TMSG_INFO(pEntry->originalRpcType), pEntry->originalRpcType,
-          pEntry->index, pEntry->bytes);
-  taosThreadMutexUnlock(&pCache->mutex);
-  return 1;
-}
-
-// find one, return 1
-// not found, return 0
-// error, return -1
-int32_t raftEntryCacheGetEntry(struct SRaftEntryCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry) {
-  ASSERT(ppEntry != NULL);
-  SSyncRaftEntry* pEntry = NULL;
-  int32_t         code = raftEntryCacheGetEntryP(pCache, index, &pEntry);
-  if (code == 1) {
-    int32_t bytes = (int32_t)pEntry->bytes;
-    *ppEntry = taosMemoryMalloc((int64_t)bytes);
-    memcpy(*ppEntry, pEntry, pEntry->bytes);
-    (*ppEntry)->rid = -1;
-  } else {
-    *ppEntry = NULL;
-  }
-  return code;
-}
-
-// find one, return 1
-// not found, return 0
-// error, return -1
-int32_t raftEntryCacheGetEntryP(struct SRaftEntryCache* pCache, SyncIndex index, SSyncRaftEntry** ppEntry) {
-  taosThreadMutexLock(&pCache->mutex);
-
-  SyncIndex index2 = index;
-  int32_t   code = 0;
-
-  SArray* entryPArray = tSkipListGet(pCache->pSkipList, (char*)(&index2));
-  int32_t arraySize = taosArrayGetSize(entryPArray);
-  if (arraySize == 1) {
-    SSkipListNode** ppNode = (SSkipListNode**)taosArrayGet(entryPArray, 0);
-    ASSERT(*ppNode != NULL);
-    *ppEntry = (SSyncRaftEntry*)SL_GET_NODE_DATA(*ppNode);
-    taosAcquireRef(pCache->refMgr, (*ppEntry)->rid);
-    code = 1;
-
-  } else if (arraySize == 0) {
-    code = 0;
-
-  } else {
-    ASSERT(0);
-
-    code = -1;
-  }
-  taosArrayDestroy(entryPArray);
-
-  taosThreadMutexUnlock(&pCache->mutex);
-  return code;
-}
-
-// count = -1, clear all
-// count >= 0, clear count
-// return -1, error
-// return delete count
-int32_t raftEntryCacheClear(struct SRaftEntryCache* pCache, int32_t count) {
-  taosThreadMutexLock(&pCache->mutex);
-  int32_t returnCnt = 0;
-
-  if (count == -1) {
-    // clear all
-    SSkipListIterator* pIter = tSkipListCreateIter(pCache->pSkipList);
-    while (tSkipListIterNext(pIter)) {
-      SSkipListNode* pNode = tSkipListIterGet(pIter);
-      ASSERT(pNode != NULL);
-      SSyncRaftEntry* pEntry = (SSyncRaftEntry*)SL_GET_NODE_DATA(pNode);
-      syncEntryDestroy(pEntry);
-      ++returnCnt;
-    }
-    tSkipListDestroyIter(pIter);
-
-    tSkipListDestroy(pCache->pSkipList);
-    pCache->pSkipList =
-        tSkipListCreate(MAX_SKIP_LIST_LEVEL, TSDB_DATA_TYPE_BINARY, sizeof(SyncIndex), cmpFn, SL_ALLOW_DUP_KEY, keyFn);
-    ASSERT(pCache->pSkipList != NULL);
-
-  } else {
-    // clear count
-    int                i = 0;
-    SSkipListIterator* pIter = tSkipListCreateIter(pCache->pSkipList);
-    SArray*            delNodeArray = taosArrayInit(0, sizeof(SSkipListNode*));
-
-    // free entry
-    while (tSkipListIterNext(pIter)) {
-      SSkipListNode* pNode = tSkipListIterGet(pIter);
-      ASSERT(pNode != NULL);
-      if (i++ >= count) {
-        break;
-      }
-
-      // sDebug("push pNode:%p", pNode);
-      taosArrayPush(delNodeArray, &pNode);
-      ++returnCnt;
-      SSyncRaftEntry* pEntry = (SSyncRaftEntry*)SL_GET_NODE_DATA(pNode);
-
-      // syncEntryDestroy(pEntry);
-      taosRemoveRef(pCache->refMgr, pEntry->rid);
-    }
-    tSkipListDestroyIter(pIter);
-
-    // delete skiplist node
-    int32_t arraySize = taosArrayGetSize(delNodeArray);
-    for (int32_t i = 0; i < arraySize; ++i) {
-      SSkipListNode** ppNode = taosArrayGet(delNodeArray, i);
-      // sDebug("get pNode:%p", *ppNode);
-      tSkipListRemoveNode(pCache->pSkipList, *ppNode);
-    }
-    taosArrayDestroy(delNodeArray);
-  }
-
-  pCache->currentCount -= returnCnt;
-  taosThreadMutexUnlock(&pCache->mutex);
-  return returnCnt;
-}

source/libs/sync/src/syncSnapshot.c

@@ -168,17 +168,19 @@ static int32_t snapshotSend(SSyncSnapshotSender *pSender) {
 
   if (pSender->blockLen > 0) {
     // has read data
-    sSDebug(pSender, "snapshot sender continue to read, blockLen:%d seq:%d", pSender->blockLen, pSender->seq);
+    sSDebug(pSender, "vgId:%d, snapshot sender continue to read, blockLen:%d seq:%d", pSender->pSyncNode->vgId,
+            pSender->blockLen, pSender->seq);
   } else {
     // read finish, update seq to end
     pSender->seq = SYNC_SNAPSHOT_SEQ_END;
-    sSInfo(pSender, "snapshot sender read to the end, blockLen:%d seq:%d", pSender->blockLen, pSender->seq);
+    sSInfo(pSender, "vgId:%d, snapshot sender read to the end, blockLen:%d seq:%d", pSender->pSyncNode->vgId,
+           pSender->blockLen, pSender->seq);
   }
 
   // build msg
   SRpcMsg rpcMsg = {0};
   if (syncBuildSnapshotSend(&rpcMsg, pSender->blockLen, pSender->pSyncNode->vgId) != 0) {
-    sSError(pSender, "snapshot sender build msg failed since %s", pSender->pSyncNode->vgId, terrstr());
+    sSError(pSender, "vgId:%d, snapshot sender build msg failed since %s", pSender->pSyncNode->vgId, terrstr());
     return -1;
   }
 
@@ -340,11 +342,13 @@ void snapshotReceiverDestroy(SSyncSnapshotReceiver *pReceiver) {
   taosMemoryFree(pReceiver);
 }
 
-bool snapshotReceiverIsStart(SSyncSnapshotReceiver *pReceiver) { return pReceiver->start; }
+bool snapshotReceiverIsStart(SSyncSnapshotReceiver *pReceiver) {
+  return (pReceiver != NULL ? pReceiver->start : false);
+}
 
 static int32_t snapshotReceiverStartWriter(SSyncSnapshotReceiver *pReceiver, SyncSnapshotSend *pBeginMsg) {
   if (pReceiver->pWriter != NULL) {
-    sRError(pReceiver, "vgId:%d, snapshot receiver writer is not null");
+    sRError(pReceiver, "vgId:%d, snapshot receiver writer is not null", pReceiver->pSyncNode->vgId);
     terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
     return -1;
   }
@@ -851,8 +855,8 @@ static int32_t syncNodeOnSnapshotPrepRsp(SSyncNode *pSyncNode, SSyncSnapshotSend
          pMsg->snapBeginIndex, snapshot.lastApplyIndex, snapshot.lastApplyTerm);
 
   if (pMsg->snapBeginIndex > snapshot.lastApplyIndex) {
-    sSError(pSender, "prepare snapshot failed since beginIndex:%d larger than applyIndex:%d", pMsg->snapBeginIndex,
-            snapshot.lastApplyIndex);
+    sSError(pSender, "prepare snapshot failed since beginIndex:%" PRId64 " larger than applyIndex:%" PRId64,
+            pMsg->snapBeginIndex, snapshot.lastApplyIndex);
     terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
     return -1;
   }
@@ -966,7 +970,8 @@ int32_t syncNodeOnSnapshotRsp(SSyncNode *pSyncNode, const SRpcMsg *pRpcMsg) {
 
   if (pSender->pReader == NULL || pSender->finish) {
     syncLogRecvSyncSnapshotRsp(pSyncNode, pMsg, "snapshot sender invalid");
-    sSError(pSender, "snapshot sender invalid, pReader:%p finish:%d", pMsg->code, pSender->pReader, pSender->finish);
+    sSError(pSender, "snapshot sender invalid error:%s 0x%x, pReader:%p finish:%d", tstrerror(pMsg->code), pMsg->code,
+            pSender->pReader, pSender->finish);
     terrno = pMsg->code;
     goto _ERROR;
   }

source/libs/wal/src/walMeta.c

@@ -913,7 +913,7 @@ int walLoadMeta(SWal* pWal) {
   int64_t fileSize = 0;
   taosStatFile(fnameStr, &fileSize, NULL);
   if (fileSize == 0) {
-    taosRemoveFile(fnameStr);
+    (void)taosRemoveFile(fnameStr);
     wDebug("vgId:%d, wal find empty meta ver %d", pWal->cfg.vgId, metaVer);
     return -1;
   }

source/libs/wal/src/walWrite.c

@@ -63,7 +63,7 @@ int32_t walRestoreFromSnapshot(SWal *pWal, int64_t ver) {
       wInfo("vgId:%d, restore from snapshot, remove file %s", pWal->cfg.vgId, fnameStr);
     }
   }
-  walRemoveMeta(pWal);
+  (void)walRemoveMeta(pWal);
 
   pWal->writeCur = -1;
   pWal->totSize = 0;