From 26e708bc0b2dca0a3819b4a78124da9f52cd5322 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Mon, 28 Sep 2020 10:17:53 +0800
Subject: [PATCH] [td-1300]

---
 src/client/src/tscServer.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/client/src/tscServer.c b/src/client/src/tscServer.c
index ac4bc5b066..74acc56bba 100644
--- a/src/client/src/tscServer.c
+++ b/src/client/src/tscServer.c
@@ -53,7 +53,10 @@ static void tscSetDnodeEpSet(SSqlObj* pSql, SCMVgroupInfo* pVgroupInfo) {
   assert(pSql != NULL && pVgroupInfo != NULL && pVgroupInfo->numOfEps > 0);
 
   SRpcEpSet* pEpSet = &pSql->epSet;
-  pEpSet->inUse = 0;
+
+  // Issue the query to one of the vnode among a vgroup randomly.
+  // change the inUse property would not affect the isUse attribute of STableMeta
+  pEpSet->inUse = rand() % pVgroupInfo->numOfEps;
 
   // apply the FQDN string length check here
   bool hasFqdn = false;