fix(sync): snapshot strategy wal first

source/dnode/mgmt/mgmt_mnode/src/mmHandle.c

@@ -237,10 +237,12 @@ SArray *mmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_BATCH, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_REQUEST_VOTE, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_REQUEST_VOTE_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES_BATCH, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES_REPLY, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_SNAPSHOT_SEND, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_SNAPSHOT_RSP, mmPutMsgToSyncQueue, 1) == NULL) goto _OVER;

source/dnode/mgmt/mgmt_vnode/src/vmHandle.c

@@ -376,10 +376,12 @@ SArray *vmGetMsgHandles() {
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_PING_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_BATCH, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_CLIENT_REQUEST_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_REQUEST_VOTE, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_REQUEST_VOTE_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
+  if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES_BATCH, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_APPEND_ENTRIES_REPLY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
   if (dmSetMgmtHandle(pArray, TDMT_SYNC_SET_VNODE_STANDBY, vmPutMsgToSyncQueue, 0) == NULL) goto _OVER;
 

source/libs/sync/inc/syncInt.h

@@ -67,7 +67,6 @@ typedef struct SSyncNode {
   char        path[TSDB_FILENAME_LEN];
   char        raftStorePath[TSDB_FILENAME_LEN * 2];
   char        configPath[TSDB_FILENAME_LEN * 2];
-  int32_t     batchSize;
 
   // sync io
   SWal*         pWal;

source/libs/sync/src/syncAppendEntries.c

@@ -842,8 +842,8 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
       do {
         char logBuf[128];
         snprintf(logBuf, sizeof(logBuf),
-                 "recv sync-append-entries-batch, fake match2, pre-index:%ld, pre-term:%lu, datalen:%d",
-                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen);
+                 "recv sync-append-entries-batch, fake match2, {pre-index:%ld, pre-term:%lu, datalen:%d, datacount:%d}",
+                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen, pMsg->dataCount);
         syncNodeEventLog(ths, logBuf);
       } while (0);
 
@@ -876,7 +876,7 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
           code = syncNodePreCommit(ths, pAppendEntry);
           ASSERT(code == 0);
 
-          syncEntryDestory(pAppendEntry);
+          // syncEntryDestory(pAppendEntry);
         }
 
         // fsync once
@@ -931,8 +931,8 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
       do {
         char logBuf[128];
         snprintf(logBuf, sizeof(logBuf),
-                 "recv sync-append-entries-batch, not match, pre-index:%ld, pre-term:%lu, datalen:%d",
-                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen);
+                 "recv sync-append-entries-batch, not match, {pre-index:%ld, pre-term:%lu, datalen:%d, datacount:%d}",
+                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen, pMsg->dataCount);
         syncNodeEventLog(ths, logBuf);
       } while (0);
 
@@ -976,8 +976,9 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
 
       do {
         char logBuf[128];
-        snprintf(logBuf, sizeof(logBuf), "recv sync-append-entries, match, pre-index:%ld, pre-term:%lu, datalen:%d",
-                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen);
+        snprintf(logBuf, sizeof(logBuf),
+                 "recv sync-append-entries, match, {pre-index:%ld, pre-term:%lu, datalen:%d, datacount:%d}",
+                 pMsg->prevLogIndex, pMsg->prevLogTerm, pMsg->dataLen, pMsg->dataCount);
         syncNodeEventLog(ths, logBuf);
       } while (0);
 
@@ -999,7 +1000,7 @@ int32_t syncNodeOnAppendEntriesSnapshot2Cb(SSyncNode* ths, SyncAppendEntriesBatc
           code = syncNodePreCommit(ths, pAppendEntry);
           ASSERT(code == 0);
 
-          syncEntryDestory(pAppendEntry);
+          // syncEntryDestory(pAppendEntry);
         }
 
         // fsync once

source/libs/sync/src/syncAppendEntriesReply.c

@@ -174,8 +174,12 @@ int32_t syncNodeOnAppendEntriesReplySnapshot2Cb(SSyncNode* ths, SyncAppendEntrie
     SyncIndex newNextIndex = pMsg->matchIndex + 1;
     SyncIndex newMatchIndex = pMsg->matchIndex;
 
-    if (ths->pLogStore->syncLogExist(ths->pLogStore, newNextIndex) &&
-        ths->pLogStore->syncLogExist(ths->pLogStore, newNextIndex - 1)) {
+    bool needStartSnapshot = false;
+    if (newMatchIndex >= SYNC_INDEX_BEGIN && !ths->pLogStore->syncLogExist(ths->pLogStore, newMatchIndex)) {
+      needStartSnapshot = true;
+    }
+
+    if (!needStartSnapshot) {
       // update next-index, match-index
       syncIndexMgrSetIndex(ths->pNextIndex, &(pMsg->srcId), newNextIndex);
       syncIndexMgrSetIndex(ths->pMatchIndex, &(pMsg->srcId), newMatchIndex);
@@ -197,15 +201,36 @@ int32_t syncNodeOnAppendEntriesReplySnapshot2Cb(SSyncNode* ths, SyncAppendEntrie
       syncIndexMgrSetIndex(ths->pMatchIndex, &(pMsg->srcId), newMatchIndex);
     }
 
+    // event log, update next-index
+    do {
+      char    host[64];
+      int16_t port;
+      syncUtilU642Addr(pMsg->srcId.addr, host, sizeof(host), &port);
+
+      char logBuf[256];
+      snprintf(logBuf, sizeof(logBuf), "reset next-index:%ld, match-index:%ld for %s:%d", newNextIndex, newMatchIndex,
+               host, port);
+      syncNodeEventLog(ths, logBuf);
+
+    } while (0);
+
   } else {
     SyncIndex nextIndex = syncIndexMgrGetIndex(ths->pNextIndex, &(pMsg->srcId));
 
     if (nextIndex > SYNC_INDEX_BEGIN) {
       --nextIndex;
 
-      if (ths->pLogStore->syncLogExist(ths->pLogStore, nextIndex) &&
-          ths->pLogStore->syncLogExist(ths->pLogStore, nextIndex - 1)) {
+      bool needStartSnapshot = false;
+      if (nextIndex >= SYNC_INDEX_BEGIN && !ths->pLogStore->syncLogExist(ths->pLogStore, nextIndex)) {
+        needStartSnapshot = true;
+      }
+      if (nextIndex - 1 >= SYNC_INDEX_BEGIN && !ths->pLogStore->syncLogExist(ths->pLogStore, nextIndex - 1)) {
+        needStartSnapshot = true;
+      }
+
+      if (!needStartSnapshot) {
         // do nothing
+
       } else {
         SSyncRaftEntry* pEntry;
         int32_t         code = ths->pLogStore->syncLogGetEntry(ths->pLogStore, nextIndex, &pEntry);
@@ -227,6 +252,21 @@ int32_t syncNodeOnAppendEntriesReplySnapshot2Cb(SSyncNode* ths, SyncAppendEntrie
       nextIndex = SYNC_INDEX_BEGIN;
     }
     syncIndexMgrSetIndex(ths->pNextIndex, &(pMsg->srcId), nextIndex);
+
+    // event log, update next-index
+    do {
+      char    host[64];
+      int16_t port;
+      syncUtilU642Addr(pMsg->srcId.addr, host, sizeof(host), &port);
+
+      SyncIndex newNextIndex = nextIndex;
+      SyncIndex newMatchIndex = syncIndexMgrGetIndex(ths->pMatchIndex, &(pMsg->srcId));
+      char      logBuf[256];
+      snprintf(logBuf, sizeof(logBuf), "reset2 next-index:%ld, match-index:%ld for %s:%d", newNextIndex, newMatchIndex,
+               host, port);
+      syncNodeEventLog(ths, logBuf);
+
+    } while (0);
   }
 
   return 0;

source/libs/sync/src/syncMain.c

@@ -648,8 +648,6 @@ void setHeartbeatTimerMS(int64_t rid, int32_t hbTimerMS) {
 }
 
 int32_t syncPropose(int64_t rid, SRpcMsg* pMsg, bool isWeak) {
-  int32_t ret = 0;
-
   SSyncNode* pSyncNode = taosAcquireRef(tsNodeRefId, rid);
   if (pSyncNode == NULL) {
     taosReleaseRef(tsNodeRefId, rid);
@@ -657,8 +655,8 @@ int32_t syncPropose(int64_t rid, SRpcMsg* pMsg, bool isWeak) {
     return -1;
   }
   ASSERT(rid == pSyncNode->rid);
-  ret = syncNodePropose(pSyncNode, pMsg, isWeak);
 
+  int32_t ret = syncNodePropose(pSyncNode, pMsg, isWeak);
   taosReleaseRef(tsNodeRefId, pSyncNode->rid);
   return ret;
 }
@@ -669,15 +667,14 @@ int32_t syncProposeBatch(int64_t rid, SRpcMsg* pMsgArr, bool* pIsWeakArr, int32_
     return -1;
   }
 
-  int32_t    ret = 0;
   SSyncNode* pSyncNode = taosAcquireRef(tsNodeRefId, rid);
   if (pSyncNode == NULL) {
     terrno = TSDB_CODE_SYN_INTERNAL_ERROR;
     return -1;
   }
   ASSERT(rid == pSyncNode->rid);
-  ret = syncNodeProposeBatch(pSyncNode, pMsgArr, pIsWeakArr, arrSize);
 
+  int32_t ret = syncNodeProposeBatch(pSyncNode, pMsgArr, pIsWeakArr, arrSize);
   taosReleaseRef(tsNodeRefId, pSyncNode->rid);
   return ret;
 }
@@ -1529,12 +1526,14 @@ void syncNodeEventLog(const SSyncNode* pSyncNode, char* str) {
     if (pSyncNode != NULL && pSyncNode->pRaftCfg != NULL && pSyncNode->pRaftStore != NULL) {
       snprintf(logBuf, sizeof(logBuf),
                "vgId:%d, sync %s %s, term:%lu, commit:%ld, beginlog:%ld, lastlog:%ld, lastsnapshot:%ld, standby:%d, "
+               "strategy:%d, batch:%d, "
                "replica-num:%d, "
                "lconfig:%ld, changing:%d, restore:%d, %s",
                pSyncNode->vgId, syncUtilState2String(pSyncNode->state), str, pSyncNode->pRaftStore->currentTerm,
                pSyncNode->commitIndex, logBeginIndex, logLastIndex, snapshot.lastApplyIndex,
-               pSyncNode->pRaftCfg->isStandBy, pSyncNode->replicaNum, pSyncNode->pRaftCfg->lastConfigIndex,
-               pSyncNode->changing, pSyncNode->restoreFinish, printStr);
+               pSyncNode->pRaftCfg->isStandBy, pSyncNode->pRaftCfg->snapshotStrategy, pSyncNode->pRaftCfg->batchSize,
+               pSyncNode->replicaNum, pSyncNode->pRaftCfg->lastConfigIndex, pSyncNode->changing,
+               pSyncNode->restoreFinish, printStr);
     } else {
       snprintf(logBuf, sizeof(logBuf), "%s", str);
     }
@@ -1546,12 +1545,14 @@ void syncNodeEventLog(const SSyncNode* pSyncNode, char* str) {
     if (pSyncNode != NULL && pSyncNode->pRaftCfg != NULL && pSyncNode->pRaftStore != NULL) {
       snprintf(s, len,
                "vgId:%d, sync %s %s, term:%lu, commit:%ld, beginlog:%ld, lastlog:%ld, lastsnapshot:%ld, standby:%d, "
+               "strategy:%d, batch:%d, "
                "replica-num:%d, "
                "lconfig:%ld, changing:%d, restore:%d, %s",
                pSyncNode->vgId, syncUtilState2String(pSyncNode->state), str, pSyncNode->pRaftStore->currentTerm,
                pSyncNode->commitIndex, logBeginIndex, logLastIndex, snapshot.lastApplyIndex,
-               pSyncNode->pRaftCfg->isStandBy, pSyncNode->replicaNum, pSyncNode->pRaftCfg->lastConfigIndex,
-               pSyncNode->changing, pSyncNode->restoreFinish, printStr);
+               pSyncNode->pRaftCfg->isStandBy, pSyncNode->pRaftCfg->snapshotStrategy, pSyncNode->pRaftCfg->batchSize,
+               pSyncNode->replicaNum, pSyncNode->pRaftCfg->lastConfigIndex, pSyncNode->changing,
+               pSyncNode->restoreFinish, printStr);
     } else {
       snprintf(s, len, "%s", str);
     }

source/libs/sync/src/syncMessage.c

@@ -1605,7 +1605,7 @@ void syncAppendEntriesLog2(char* s, const SyncAppendEntries* pMsg) {
 
 SyncAppendEntriesBatch* syncAppendEntriesBatchBuild(SSyncRaftEntry** entryPArr, int32_t arrSize, int32_t vgId) {
   ASSERT(entryPArr != NULL);
-  ASSERT(arrSize > 0);
+  ASSERT(arrSize >= 0);
 
   int32_t dataLen = 0;
   int32_t metaArrayLen = sizeof(SOffsetAndContLen) * arrSize;  // <offset, contLen>

source/libs/sync/src/syncRaftCfg.c

@@ -101,7 +101,7 @@ cJSON *syncCfg2Json(SSyncCfg *pSyncCfg) {
 
 char *syncCfg2Str(SSyncCfg *pSyncCfg) {
   cJSON *pJson = syncCfg2Json(pSyncCfg);
-  char * serialized = cJSON_Print(pJson);
+  char  *serialized = cJSON_Print(pJson);
   cJSON_Delete(pJson);
   return serialized;
 }
@@ -109,7 +109,7 @@ char *syncCfg2Str(SSyncCfg *pSyncCfg) {
 char *syncCfg2SimpleStr(SSyncCfg *pSyncCfg) {
   if (pSyncCfg != NULL) {
     int32_t len = 512;
-    char *  s = taosMemoryMalloc(len);
+    char   *s = taosMemoryMalloc(len);
     memset(s, 0, len);
 
     snprintf(s, len, "{replica-num:%d, my-index:%d, ", pSyncCfg->replicaNum, pSyncCfg->myIndex);
@@ -206,7 +206,7 @@ cJSON *raftCfg2Json(SRaftCfg *pRaftCfg) {
 
 char *raftCfg2Str(SRaftCfg *pRaftCfg) {
   cJSON *pJson = raftCfg2Json(pRaftCfg);
-  char * serialized = cJSON_Print(pJson);
+  char  *serialized = cJSON_Print(pJson);
   cJSON_Delete(pJson);
   return serialized;
 }
@@ -285,7 +285,7 @@ int32_t raftCfgFromJson(const cJSON *pRoot, SRaftCfg *pRaftCfg) {
     (pRaftCfg->configIndexArr)[i] = atoll(pIndex->valuestring);
   }
 
-  cJSON * pJsonSyncCfg = cJSON_GetObjectItem(pJson, "SSyncCfg");
+  cJSON  *pJsonSyncCfg = cJSON_GetObjectItem(pJson, "SSyncCfg");
   int32_t code = syncCfgFromJson(pJsonSyncCfg, &(pRaftCfg->cfg));
   ASSERT(code == 0);
 

source/libs/sync/src/syncReplication.c

@@ -148,9 +148,17 @@ int32_t syncNodeAppendEntriesPeersSnapshot2(SSyncNode* pSyncNode) {
     // get entry batch
     int32_t   getCount = 0;
     SyncIndex getEntryIndex = nextIndex;
-    for (int32_t i = 0; i < pSyncNode->batchSize; ++i) {
+    for (int32_t i = 0; i < pSyncNode->pRaftCfg->batchSize; ++i) {
       SSyncRaftEntry* pEntry = NULL;
       int32_t         code = pSyncNode->pLogStore->syncLogGetEntry(pSyncNode->pLogStore, getEntryIndex, &pEntry);
+
+      // event log
+      do {
+        char logBuf[128];
+        snprintf(logBuf, sizeof(logBuf), "get index:%d, code:%d, %s", getEntryIndex, code, tstrerror(terrno));
+        syncNodeEventLog(pSyncNode, logBuf);
+      } while (0);
+
       if (code == 0) {
         ASSERT(pEntry != NULL);
         entryPArr[i] = pEntry;
@@ -162,12 +170,19 @@ int32_t syncNodeAppendEntriesPeersSnapshot2(SSyncNode* pSyncNode) {
       }
     }
 
+    // event log
+    do {
+      char logBuf[128];
+      snprintf(logBuf, sizeof(logBuf), "build batch:%d", getCount);
+      syncNodeEventLog(pSyncNode, logBuf);
+    } while (0);
+
     // build msg
     SyncAppendEntriesBatch* pMsg = syncAppendEntriesBatchBuild(entryPArr, getCount, pSyncNode->vgId);
     ASSERT(pMsg != NULL);
 
     // free entries
-    for (int32_t i = 0; i < pSyncNode->batchSize; ++i) {
+    for (int32_t i = 0; i < pSyncNode->pRaftCfg->batchSize; ++i) {
       SSyncRaftEntry* pEntry = entryPArr[i];
       if (pEntry != NULL) {
         syncEntryDestory(pEntry);

tests/script/tsim/sync/vnodesnapshot.sim

@@ -145,9 +145,9 @@ system sh/exec.sh -n dnode4 -s stop -x SIGINT
 sql insert into ct1 values(now+0s, 10, 2.0, 3.0)
 sql insert into ct1 values(now+1s, 11, 2.1, 3.1)(now+2s, -12, -2.2, -3.2)(now+3s, -13, -2.3, -3.3)
 
-sql flush database db;
+#sql flush database db;
 
-system sh/exec.sh -n dnode4 -s start
+#system sh/exec.sh -n dnode4 -s start
 
 sql insert into ct1 values(now+1s, 81, 8.1, 8.1)(now+2s, -92, -9.2, -9.2)(now+3s, -73, -7.3, -7.3)