From a336a7b1a4d3e9da279c0533f96bbd1532b0a437 Mon Sep 17 00:00:00 2001
From: yihaoDeng <luomoxyz@126.com>
Date: Wed, 9 Aug 2023 09:06:22 +0000
Subject: [PATCH] support reopen stream state

---
 source/libs/stream/src/streamBackendRocksdb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/source/libs/stream/src/streamBackendRocksdb.c b/source/libs/stream/src/streamBackendRocksdb.c
index 529b29153d..a724e90866 100644
--- a/source/libs/stream/src/streamBackendRocksdb.c
+++ b/source/libs/stream/src/streamBackendRocksdb.c
@@ -277,6 +277,10 @@ int32_t backendManagerDumpTo(SBackendManager* bm, char* dname) {
   sprintf(srcDir, "%s%s%s%" PRId64 "", bm->path, TD_DIRSEP, "checkpoint", bm->curChkpId);
   sprintf(dstDir, "%s%s%s", bm->path, TD_DIRSEP, dname);
 
+  if (!taosDirExist(srcDir)) {
+    return 0;
+  }
+
   code = taosMkDir(dstDir);
   if (code != 0) {
     return code;