Merge pull request #4912 from taosdata/feature/sync

[TD-2758]<fix>: database may always in syncing state because a node is offline

src/sync/src/syncRetrieve.c

@@ -475,7 +475,8 @@ void *syncRetrieveData(void *param) {
   SSyncNode *pNode = pPeer->pSyncNode;
 
   taosBlockSIGPIPE();
-  sInfo("%s, start to retrieve data, sstatus:%s", pPeer->id, syncStatus[pPeer->sstatus]);
+  sInfo("%s, start to retrieve data, sstatus:%s, numOfRetrieves:%d", pPeer->id, syncStatus[pPeer->sstatus],
+        pPeer->numOfRetrieves);
 
   if (pNode->notifyFlowCtrl) (*pNode->notifyFlowCtrl)(pNode->vgId, pPeer->numOfRetrieves);
 
@@ -497,9 +498,11 @@ void *syncRetrieveData(void *param) {
     pPeer->numOfRetrieves++;
   } else {
     pPeer->numOfRetrieves = 0;
-    if (pNode->notifyFlowCtrl) (*pNode->notifyFlowCtrl)(pNode->vgId, 0);
+    // if (pNode->notifyFlowCtrl) (*pNode->notifyFlowCtrl)(pNode->vgId, 0);
   }
 
+  if (pNode->notifyFlowCtrl) (*pNode->notifyFlowCtrl)(pNode->vgId, 0);
+
   pPeer->fileChanged = 0;
   taosClose(pPeer->syncFd);
 

src/vnode/src/vnodeWrite.c

@@ -308,7 +308,7 @@ static void vnodeFlowCtrlMsgToWQueue(void *param, void *tmrId) {
   if (pVnode->flowctrlLevel <= 0) code = TSDB_CODE_VND_IS_FLOWCTRL;
 
   pWrite->processedCount++;
-  if (pWrite->processedCount > 100) {
+  if (pWrite->processedCount >= 100) {
     vError("vgId:%d, msg:%p, failed to process since %s, retry:%d", pVnode->vgId, pWrite, tstrerror(code),
            pWrite->processedCount);
     pWrite->processedCount = 1;