Fix incorrect thread variable usage

deps/oblib/src/lib/CMakeLists.txt

@@ -121,6 +121,7 @@ ob_set_subtarget(oblib_lib common_mixed
   rc/context.cpp
   rc/ob_rc.cpp
   rowid/ob_urowid.cpp
+  stat/ob_di_tls.cpp
   stat/ob_di_cache.cpp
   stat/ob_diagnose_info.cpp
   stat/ob_latch_define.cpp

deps/oblib/src/lib/stat/ob_di_tls.cpp

@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include "lib/stat/ob_di_tls.h"
+
+namespace oceanbase
+{
+namespace common
+{
+thread_local bool is_thread_in_exit = false;
+}
+}

deps/oblib/src/lib/stat/ob_di_tls.h

@@ -22,7 +22,7 @@ namespace oceanbase
 {
 namespace common
 {
-static thread_local bool is_thread_in_exit = false;
+extern thread_local bool is_thread_in_exit;
 
 template <class T, size_t tag>
 class ObDITls