From 478eec76a4e3eb9f77aef91c33b004637d4d6ac9 Mon Sep 17 00:00:00 2001
From: Shengliang Guan <slguan@taosdata.com>
Date: Mon, 16 Jan 2023 16:34:12 +0800
Subject: [PATCH]  enh: update epset on dnode info changed

---
 source/dnode/mgmt/node_util/src/dmEps.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/source/dnode/mgmt/node_util/src/dmEps.c b/source/dnode/mgmt/node_util/src/dmEps.c
index 0e8a1a0748..2b06a24a54 100644
--- a/source/dnode/mgmt/node_util/src/dmEps.c
+++ b/source/dnode/mgmt/node_util/src/dmEps.c
@@ -428,9 +428,11 @@ static int32_t dmDecodeEpPairs(SJson *pJson, SDnodeData *pData) {
 
 void dmRemoveDnodePairs(SDnodeData *pData) {
   char file[PATH_MAX] = {0};
+  char bak[PATH_MAX] = {0};
   snprintf(file, sizeof(file), "%s%sdnode%sep.json", tsDataDir, TD_DIRSEP, TD_DIRSEP);
-  dInfo("dnode file:%s is removed", file);
-  (void)taosRemoveFile(file);
+  snprintf(bak, sizeof(bak), "%s%sdnode%sep.json.bak", tsDataDir, TD_DIRSEP, TD_DIRSEP);
+  dInfo("dnode file:%s is rename to bak file", file);
+  (void)taosRenameFile(file, bak);
 }
 
 static int32_t dmReadDnodePairs(SDnodeData *pData) {