From 69d451db26776cefa4cd00b239b39bb84f88afc4 Mon Sep 17 00:00:00 2001
From: Benguang Zhao <bgzhao@taosdata.com>
Date: Mon, 26 Jun 2023 16:38:40 +0800
Subject: [PATCH] enh: check trans conflict in mndCreateTopic ahead of time

---
 source/dnode/mnode/impl/src/mndTopic.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/dnode/mnode/impl/src/mndTopic.c b/source/dnode/mnode/impl/src/mndTopic.c
index 43a129dc0e..4bbe531bf8 100644
--- a/source/dnode/mnode/impl/src/mndTopic.c
+++ b/source/dnode/mnode/impl/src/mndTopic.c
@@ -476,7 +476,9 @@ static int32_t mndCreateTopic(SMnode *pMnode, SRpcMsg *pReq, SCMCreateTopicReq *
   }
 
   mndTransSetDbName(pTrans, pDb->name, NULL);
-
+  if (mndTransCheckConflict(pMnode, pTrans) != 0) {
+      goto _OUT;
+  }
   mInfo("trans:%d to create topic:%s", pTrans->id, pCreate->name);
 
   SSdbRaw *pCommitRaw = mndTopicActionEncode(&topicObj);
-- 
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