Merge pull request #2165 from taosdata/hotfix/test

[TD-529]

src/vnode/src/vnodeRead.c

@@ -47,7 +47,7 @@ int32_t vnodeProcessRead(void *param, int msgType, void *pCont, int32_t contLen,
 
   // TODO: Later, let slave to support query
   if (pVnode->syncCfg.replica > 1 && pVnode->role != TAOS_SYNC_ROLE_MASTER)
-    return TSDB_CODE_NOT_READY;
+    return TSDB_CODE_RPC_NOT_READY;
 
   return (*vnodeProcessReadMsgFp[msgType])(pVnode, pCont, contLen, ret);
 }