Merge pull request #3110 from taosdata/hotfix/os

TD-1144 fix bug while redirect status msg

src/dnode/src/dnodeMgmt.c

@@ -449,7 +449,12 @@ static int32_t dnodeProcessConfigDnodeMsg(SRpcMsg *pMsg) {
 }
 
 void dnodeUpdateMnodeEpSetForPeer(SRpcEpSet *pEpSet) {
-  dInfo("mnode EP list for is changed, numOfEps:%d inUse:%d", pEpSet->numOfEps, pEpSet->inUse);
+  if (pEpSet->numOfEps <= 0) {
+    dError("mnode EP list for peer is changed, but content is invalid, discard it");
+    return;
+  }
+
+  dInfo("mnode EP list for peer is changed, numOfEps:%d inUse:%d", pEpSet->numOfEps, pEpSet->inUse);
   for (int i = 0; i < pEpSet->numOfEps; ++i) {
     pEpSet->port[i] -= TSDB_PORT_DNODEDNODE;
     dInfo("mnode index:%d %s:%u", i, pEpSet->fqdn[i], pEpSet->port[i])

src/mnode/src/mnodePeer.c

@@ -58,7 +58,8 @@ int32_t mnodeProcessPeerReq(SMnodeMsg *pMsg) {
     rpcRsp->rsp = epSet;
     rpcRsp->len = sizeof(SRpcEpSet);
 
-    mDebug("%p, msg:%s in mpeer queue, will be redireced inUse:%d", pMsg->rpcMsg.ahandle, taosMsg[pMsg->rpcMsg.msgType], epSet->inUse);
+    mDebug("%p, msg:%s in mpeer queue, will be redireced, numOfEps:%d inUse:%d", pMsg->rpcMsg.ahandle,
+           taosMsg[pMsg->rpcMsg.msgType], epSet->numOfEps, epSet->inUse);
     for (int32_t i = 0; i < epSet->numOfEps; ++i) {
       mDebug("mnode index:%d ep:%s:%d", i, epSet->fqdn[i], htons(epSet->port[i]));
     }