From cc0a45398b89b2920f8c65f25325967c0df959d8 Mon Sep 17 00:00:00 2001
From: Minglei Jin <mljin@taosdata.com>
Date: Wed, 30 Mar 2022 16:31:13 +0800
Subject: [PATCH] [TS-1379]<fix>: fix show vnodes with 0 vnode

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

diff --git a/src/mnode/src/mnodeDnode.c b/src/mnode/src/mnodeDnode.c
index c0793289b2..93d754d70d 100644
--- a/src/mnode/src/mnodeDnode.c
+++ b/src/mnode/src/mnodeDnode.c
@@ -1252,7 +1252,10 @@ static int32_t mnodeRetrieveVnodes(SShowObj *pShow, char *data, int32_t rows, vo
   char *     pWrite;
   int32_t    cols = 0;
 
-  if (0 == rows) return 0;
+  if (0 == rows) {
+    pShow->pIter = NULL;
+    return 0;
+  }
 
   pDnode = (SDnodeObj *)(pShow->pIter);
   if (pDnode != NULL) {
-- 
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