From ee092c2dbb047f8e753ef205f0425e1eadc11e2f Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Wed, 16 Dec 2020 19:09:13 +0800
Subject: [PATCH] [TD-2469]<fix>: disable client epSet.fqdn update with single
 node cluster

---
 src/mnode/src/mnodeMnode.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mnode/src/mnodeMnode.c b/src/mnode/src/mnodeMnode.c
index b60b308cf8..8b3b2896ff 100644
--- a/src/mnode/src/mnodeMnode.c
+++ b/src/mnode/src/mnodeMnode.c
@@ -294,6 +294,11 @@ void mnodeGetMnodeEpSetForShell(SRpcEpSet *epSet, bool redirect) {
   *epSet = tsMEpForShell;
   mnodeMnodeUnLock();
 
+  if (mnodeGetDnodesNum() <= 1) {
+    epSet->numOfEps = 0;
+    return;
+  }
+
   mTrace("vgId:1, mnodes epSet for shell is returned, num:%d inUse:%d", tsMEpForShell.numOfEps, tsMEpForShell.inUse);
   for (int32_t i = 0; i < epSet->numOfEps; ++i) {
     if (redirect && strcmp(epSet->fqdn[i], tsLocalFqdn) == 0 && htons(epSet->port[i]) == tsServerPort) {
-- 
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