enh: update pDb stateTs on stateChanged

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

@@ -496,11 +496,11 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
         pVgroup->compStorage = pVload->compStorage;
         pVgroup->pointsWritten = pVload->pointsWritten;
       }
-      bool roleChanged = false;
+      bool stateChanged = false;
       for (int32_t vg = 0; vg < pVgroup->replica; ++vg) {
         SVnodeGid *pGid = &pVgroup->vnodeGid[vg];
         if (pGid->dnodeId == statusReq.dnodeId) {
-          roleChanged =
+          bool roleChanged =
               pGid->syncState != pVload->syncState || (pVload->syncTerm != -1 && pGid->syncTerm != pVload->syncTerm);
           if (reboot || roleChanged || pGid->syncRestore != pVload->syncRestore || pGid->syncCanRead != pVload->syncCanRead) {
             mInfo(
@@ -513,6 +513,7 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
             pGid->syncRestore = pVload->syncRestore;
             pGid->syncCanRead = pVload->syncCanRead;
             pGid->startTimeMs = (pVload->startTimeMs != 0) ? pVload->startTimeMs : statusReq.rebootTime;
+            stateChanged = true;
           }
           if (roleChanged) {
             pGid->roleTimeMs = (pVload->roleTimeMs != 0) ? pVload->roleTimeMs : taosGetTimestampMs();
@@ -520,7 +521,7 @@ static int32_t mndProcessStatusReq(SRpcMsg *pReq) {
           break;
         }
       }
-      if (roleChanged) {
+      if (stateChanged) {
         SDbObj *pDb = mndAcquireDb(pMnode, pVgroup->dbName);
         if (pDb != NULL && pDb->stateTs != curMs) {
           mInfo("db:%s, stateTs changed by status msg, old stateTs:%" PRId64 " new stateTs:%" PRId64, pDb->name,

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

@@ -185,7 +185,7 @@ static void mndSetVgroupOffline(SMnode *pMnode, int32_t dnodeId, int64_t curMs)
     pIter = sdbFetch(pSdb, SDB_VGROUP, pIter, (void **)&pVgroup);
     if (pIter == NULL) break;
 
-    bool roleChanged = false;
+    bool stateChanged = false;
     for (int32_t vg = 0; vg < pVgroup->replica; ++vg) {
       SVnodeGid *pGid = &pVgroup->vnodeGid[vg];
       if (pGid->dnodeId == dnodeId) {
@@ -197,13 +197,14 @@ static void mndSetVgroupOffline(SMnode *pMnode, int32_t dnodeId, int64_t curMs)
           pGid->syncState = TAOS_SYNC_STATE_OFFLINE;
           pGid->syncRestore = 0;
           pGid->syncCanRead = 0;
-          roleChanged = true;
+          pGid->startTimeMs = 0;
+          stateChanged = true;
         }
         break;
       }
     }
 
-    if (roleChanged) {
+    if (stateChanged) {
       SDbObj *pDb = mndAcquireDb(pMnode, pVgroup->dbName);
       if (pDb != NULL && pDb->stateTs != curMs) {
         mInfo("db:%s, stateTs changed by offline check, old newTs:%" PRId64 " newTs:%" PRId64, pDb->name, pDb->stateTs,