refactor: sync integrate into mnode

source/dnode/mnode/impl/inc/mndInt.h

@@ -75,9 +75,10 @@ typedef struct {
 } STelemMgmt;
 
 typedef struct {
-  int32_t    errCode;
-  sem_t      syncSem;
   SWal      *pWal;
+  int32_t    errCode;
+  bool       restored;
+  sem_t      syncSem;
   int64_t    sync;
   ESyncState state;
 } SSyncMgmt;

source/dnode/mnode/impl/inc/mndSync.h

@@ -25,7 +25,10 @@ extern "C" {
 int32_t mndInitSync(SMnode *pMnode);
 void    mndCleanupSync(SMnode *pMnode);
 bool    mndIsMaster(SMnode *pMnode);
+bool    mndIsRestored(SMnode *pMnode);
 int32_t mndSyncPropose(SMnode *pMnode, SSdbRaw *pRaw);
+void    mndSyncStart(SMnode *pMnode);
+void    mndSyncStop(SMnode *pMnode);
 
 #ifdef __cplusplus
 }

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

@@ -68,7 +68,6 @@ SSyncFSM *mndSyncMakeFsm(SMnode *pMnode) {
 
 int32_t mndInitSync(SMnode *pMnode) {
   SSyncMgmt *pMgmt = &pMnode->syncMgmt;
-  tsem_init(&pMgmt->syncSem, 0, 0);
 
   char path[PATH_MAX + 20] = {0};
   snprintf(path, sizeof(path), "%s%swal", pMnode->path, TD_DIRSEP);
@@ -102,6 +101,7 @@ int32_t mndInitSync(SMnode *pMnode) {
     pNode->nodePort = pMnode->replicas[i].port;
   }
 
+  tsem_init(&pMgmt->syncSem, 0, 0);
   pMgmt->sync = syncOpen(&syncInfo);
   if (pMgmt->sync <= 0) {
     mError("failed to open sync since %s", terrstr());
@@ -146,8 +146,30 @@ int32_t mndSyncPropose(SMnode *pMnode, SSdbRaw *pRaw) {
   return pMgmt->errCode;
 }
 
+void mndSyncStart(SMnode *pMnode) {
+  SSdb   *pSdb = pMnode->pSdb;
+  int64_t lastApplyIndex = sdbGetApplyIndex(pSdb);
+
+  syncSetMsgCb(pMnode->syncMgmt.sync, &pMnode->msgCb);
+  syncStart(pMnode->syncMgmt.sync);
+
+  int64_t applyIndex = sdbGetApplyIndex(pSdb);
+  mndTransPullup(pMnode);
+  mDebug("pullup trans finished, applyIndex:%" PRId64, applyIndex);
+  if (applyIndex != lastApplyIndex) {
+    mInfo("sdb restored from %" PRId64 " to %" PRId64 ", write file", lastApplyIndex, applyIndex);
+    sdbWriteFile(pSdb);
+  }
+
+  pMnode->syncMgmt.restored = true;
+}
+
+void mndSyncStop(SMnode *pMnode) { syncStop(pMnode->syncMgmt.sync); }
+
 bool mndIsMaster(SMnode *pMnode) {
   SSyncMgmt *pMgmt = &pMnode->syncMgmt;
   pMgmt->state = syncGetMyRole(pMgmt->sync);
   return pMgmt->state == TAOS_SYNC_STATE_LEADER;
 }
+
+bool mndIsRestored(SMnode *pMnode) { return pMnode->syncMgmt.restored; }

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

@@ -682,16 +682,6 @@ static int32_t mndTransSync(SMnode *pMnode, STrans *pTrans) {
   }
 
   mDebug("trans:%d, sync finished", pTrans->id);
-
-// do it in state machine commit cb
-#if 0
-  code = sdbWriteWithout(pMnode->pSdb, pRaw);
-  if (code != 0) {
-    mError("trans:%d, failed to write sdb since %s", pTrans->id, terrstr());
-    return -1;
-  }
-#endif
-
   return 0;
 }
 

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

@@ -86,7 +86,7 @@ static void *mndThreadFp(void *param) {
     lastTime++;
     taosMsleep(100);
     if (pMnode->stopped) break;
-    if (!mndIsMaster(pMnode)) continue;
+    if (!mndIsMaster(pMnode) || !mndIsRestored(pMnode)) continue;
 
     if (lastTime % (tsTransPullupInterval * 10) == 0) {
       mndPullupTrans(pMnode);
@@ -337,13 +337,12 @@ int32_t mndAlter(SMnode *pMnode, const SMnodeOpt *pOption) {
 }
 
 int32_t mndStart(SMnode *pMnode) {
-  syncSetMsgCb(pMnode->syncMgmt.sync, &pMnode->msgCb);
+  mndSyncStart(pMnode);
-  syncStart(pMnode->syncMgmt.sync);
   return mndInitTimer(pMnode);
 }
 
 void mndStop(SMnode *pMnode) {
-  syncStop(pMnode->syncMgmt.sync); 
+  mndSyncStop(pMnode);
   return mndCleanupTimer(pMnode);
 }
 
@@ -444,7 +443,6 @@ int32_t mndProcessSyncMsg(SRpcMsg *pMsg) {
 
   return ret;
 
-
   return 0;
 }
 
@@ -454,7 +452,7 @@ int32_t mndProcessMsg(SRpcMsg *pMsg) {
   mTrace("msg:%p, will be processed, type:%s app:%p", pMsg, TMSG_INFO(pMsg->msgType), ahandle);
 
   if (IsReq(pMsg)) {
-    if (!mndIsMaster(pMnode)) {
+    if (!mndIsMaster(pMnode) || !mndIsRestored(pMnode)) {
       terrno = TSDB_CODE_APP_NOT_READY;
       mDebug("msg:%p, failed to process since %s, app:%p", pMsg, terrstr(), ahandle);
       return -1;
@@ -514,7 +512,7 @@ int64_t mndGenerateUid(char *name, int32_t len) {
 
 int32_t mndGetMonitorInfo(SMnode *pMnode, SMonClusterInfo *pClusterInfo, SMonVgroupInfo *pVgroupInfo,
                           SMonGrantInfo *pGrantInfo) {
-  if (!mndIsMaster(pMnode)) return -1;
+  if (!mndIsMaster(pMnode) || !mndIsRestored(pMnode)) return -1;
 
   SSdb   *pSdb = pMnode->pSdb;
   int64_t ms = taosGetTimestampMs();