From f9dc305e3583771739a5370fd8c1ec3715c6f9fd Mon Sep 17 00:00:00 2001
From: kailixu <klxu@taosdata.com>
Date: Sat, 8 Feb 2025 16:08:40 +0800
Subject: [PATCH] enh: print err msg only in embedded log mode

---
 source/util/src/tlog.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/source/util/src/tlog.c b/source/util/src/tlog.c
index eb4b4de863..94b6b67018 100644
--- a/source/util/src/tlog.c
+++ b/source/util/src/tlog.c
@@ -398,8 +398,9 @@ static void taosKeepOldLog(char *oldName) {
     TAOS_UNUSED(taosUnLockFile(oldFile));
   _exit2:
     TAOS_UNUSED(taosCloseFile(&oldFile));
-    if (code != 0) {
-      uWarn("failed at line %d to keep old log file:%s, reason:%s\n", lino, oldName, tstrerror(code));
+    if (code != 0 && tsLogEmbedded == 1) {  // only print error message in embedded log mode
+      // don't use uWarn or uError, because it may open new log file and cause dead lock
+      fprintf(stderr, "failed at line %d to keep old log file:%s, reason:%s\n", lino, oldName, tstrerror(code));
     }
   }
 }