diff --git a/deps/oblib/src/lib/ob_define.h b/deps/oblib/src/lib/ob_define.h
index ed0893635..7fb523e99 100644
--- a/deps/oblib/src/lib/ob_define.h
+++ b/deps/oblib/src/lib/ob_define.h
@@ -521,6 +521,7 @@ const int64_t OB20_PROTOCOL_EXTRA_INFO_LENGTH = 4;  // for the length of extra i
 const int16_t OB20_PROTOCOL_VERSION_VALUE = 20;
 
 const int OB_THREAD_NAME_BUF_LEN = 16;
+const int OB_EXTENED_THREAD_NAME_BUF_LEN = 32;
 
 enum ObCSProtocolType
 {
@@ -2615,6 +2616,21 @@ OB_INLINE char* ob_get_origin_thread_name()
   return ori_tname;
 }
 
+OB_INLINE char* ob_get_extended_thread_name()
+{
+  thread_local char ext_tname[oceanbase::OB_EXTENED_THREAD_NAME_BUF_LEN] = {0};
+  return ext_tname;
+}
+
+OB_INLINE char* ob_get_tname_v2()
+{
+  char *ret_tname = ob_get_extended_thread_name();
+  if ('\0' == ret_tname[0]) {
+    ret_tname = ob_get_tname();
+  }
+  return ret_tname;
+}
+
 static const char* PARALLEL_DDL_THREAD_NAME = "DDLPQueueTh";
 static const char* REPLAY_SERVICE_THREAD_NAME = "ReplaySrv";
 
@@ -2642,6 +2658,7 @@ OB_INLINE uint64_t ob_set_thread_tenant_id(uint64_t tenant_id)
 
 #define GETTID() ob_gettid()
 #define GETTNAME() ob_get_tname()
+#define GETTNAME_V2() ob_get_tname_v2()
 #define GET_TENANT_ID() ob_get_tenant_id()
 #define gettid GETTID
 #define GET_CLUSTER_ID() ob_get_cluster_id()
diff --git a/deps/oblib/src/lib/oblog/ob_log.cpp b/deps/oblib/src/lib/oblog/ob_log.cpp
index 1423aee2e..752fc8e80 100644
--- a/deps/oblib/src/lib/oblog/ob_log.cpp
+++ b/deps/oblib/src/lib/oblog/ob_log.cpp
@@ -747,7 +747,7 @@ int ObLogger::log_head(const int64_t ts,
                            "|%s|%s|%s|%d|%lu|%ld|%s|%s|%s|%s:%d|",
                            tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min,
                            tm.tm_sec, tv.tv_usec, errstr_[level], mod_name, dba_event, errcode,
-                           GET_TENANT_ID(), GETTID(), GETTNAME(), ObCurTraceId::get_trace_id_str(),
+                           GET_TENANT_ID(), GETTID(), GETTNAME_V2(), ObCurTraceId::get_trace_id_str(),
                            function, base_file_name, line);
     } else {
       if (level == OB_LOG_LEVEL_DBA_ERROR
@@ -762,7 +762,7 @@ int ObLogger::log_head(const int64_t ts,
                              "[%04d-%02d-%02d %02d:%02d:%02d.%06ld] "
                              "[%ld][%s][T%lu][%s] ",
                              tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min,
-                             tm.tm_sec, tv.tv_usec, GETTID(), GETTNAME(), GET_TENANT_ID(), ObCurTraceId::get_trace_id_str());
+                             tm.tm_sec, tv.tv_usec, GETTID(), GETTNAME_V2(), GET_TENANT_ID(), ObCurTraceId::get_trace_id_str());
       } else {
         constexpr int cluster_id_buf_len = 8;
         char cluster_id_buf[cluster_id_buf_len] = {'\0'};
@@ -772,7 +772,7 @@ int ObLogger::log_head(const int64_t ts,
                              "%-5s %s%s (%s:%d) [%ld][%s]%s[T%lu][%s] [lt=%ld]%s ",
                              tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min,
                              tm.tm_sec, tv.tv_usec, errstr_[level], mod_name, function,
-                             base_file_name, line, GETTID(), GETTNAME(), is_arb_replica_ ? cluster_id_buf : "",
+                             base_file_name, line, GETTID(), GETTNAME_V2(), is_arb_replica_ ? cluster_id_buf : "",
                              is_arb_replica_ ? GET_ARB_TENANT_ID() : GET_TENANT_ID(), ObCurTraceId::get_trace_id_str(),
                              last_logging_cost_time_us_, errcode_buf);
       }
diff --git a/deps/oblib/src/lib/task/ob_timer.cpp b/deps/oblib/src/lib/task/ob_timer.cpp
index 312e9fa38..6e9c51d02 100644
--- a/deps/oblib/src/lib/task/ob_timer.cpp
+++ b/deps/oblib/src/lib/task/ob_timer.cpp
@@ -26,9 +26,8 @@ namespace common
 using namespace obutil;
 using namespace lib;
 
-int ObTimer::init(const char* thread_name, const ObMemAttr &attr)
+int ObTimer::init(const char* timer_name, const ObMemAttr &attr)
 {
-  UNUSED(thread_name);
   UNUSED(attr);
   int ret = OB_SUCCESS;
   if (ObTimerService::get_instance().is_never_started()) {
@@ -42,6 +41,7 @@ int ObTimer::init(const char* thread_name, const ObMemAttr &attr)
   } else {
     is_inited_ = true;
     is_stopped_ = false;
+    ObTimerUtil::copy_buff(timer_name_, sizeof(timer_name_), timer_name);
   }
   return ret;
 }
@@ -99,6 +99,7 @@ void ObTimer::destroy()
     wait();
     is_inited_ = false;
     timer_service_ = nullptr;
+    timer_name_[0] = '\0';
   }
 }
 
diff --git a/deps/oblib/src/lib/task/ob_timer.h b/deps/oblib/src/lib/task/ob_timer.h
index 3db36dd5a..f06152048 100644
--- a/deps/oblib/src/lib/task/ob_timer.h
+++ b/deps/oblib/src/lib/task/ob_timer.h
@@ -23,14 +23,19 @@ namespace common
 
 class ObTimer
 {
+  friend class TaskToken;
 public:
   ObTimer()
-      : is_inited_(false), is_stopped_(true), timer_service_(nullptr), run_wrapper_(nullptr)
+      : is_inited_(false),
+        is_stopped_(true),
+        timer_service_(nullptr),
+        run_wrapper_(nullptr)
   {
+    timer_name_[0] = '\0';
     timer_service_ = &(ObTimerService::get_instance());
   }
   ~ObTimer();
-  int init(const char* thread_name = nullptr,
+  int init(const char* timer_name = nullptr,
            const ObMemAttr &attr = ObMemAttr(OB_SERVER_TENANT_ID, "timer")); // init and start
   bool inited() const;
   int start();  // only start
@@ -59,6 +64,7 @@ private:
 private:
   bool is_inited_;
   bool is_stopped_;
+  char timer_name_[OB_THREAD_NAME_BUF_LEN];
   ObTimerService *timer_service_;
   lib::IRunWrapper *run_wrapper_;
 };
diff --git a/deps/oblib/src/lib/task/ob_timer_service.cpp b/deps/oblib/src/lib/task/ob_timer_service.cpp
index fcb6a566c..82cc6c018 100644
--- a/deps/oblib/src/lib/task/ob_timer_service.cpp
+++ b/deps/oblib/src/lib/task/ob_timer_service.cpp
@@ -57,12 +57,14 @@ TaskToken::TaskToken(
     const int64_t dt)
   : timer_(timer), task_(task), scheduled_time_(st), delay_(dt)
 {
-  char *buf = task_type_;
-  int buf_len = sizeof(task_type_);
-  if (task != NULL) {
-    strncpy(buf, typeid(*task).name(), buf_len);
+  task_type_[0] = '\0';
+  timer_name_[0] = '\0';
+  if (nullptr != task) {
+    ObTimerUtil::copy_buff(task_type_, sizeof(task_type_), typeid(*task).name());
+  }
+  if (nullptr != timer) {
+    ObTimerUtil::copy_buff(timer_name_, sizeof(timer_name_), timer->timer_name_);
   }
-  buf[buf_len - 1] = '\0';
 }
 
 TaskToken::TaskToken(const ObTimer *timer, ObTimerTask *task)
@@ -97,9 +99,11 @@ void ObTimerTaskThreadPool::handle(void *task_token)
       thread_id = GETTID();
       ObTimerMonitor::get_instance().start_task(thread_id, start_time, token->delay_, token->task_);
     }
-    token->task_->runTimerTask();
     THIS_WORKER.set_timeout_ts(INT64_MAX); // reset timeout to INT64_MAX
     ObCurTraceId::reset(); // reset trace_id
+    set_ext_tname(token);
+    token->task_->runTimerTask();
+    clear_ext_tname(); // reset ext_tname
     const int64_t end_time = ::oceanbase::common::ObTimeUtility::current_time();
     const int64_t elapsed_time = end_time - start_time;
     if (do_timeout_check) {
@@ -113,6 +117,26 @@ void ObTimerTaskThreadPool::handle(void *task_token)
   }
 }
 
+void ObTimerTaskThreadPool::set_ext_tname(const TaskToken *token)
+{
+  if (nullptr != token) {
+    char *ext_tname = ob_get_extended_thread_name();
+    const char *tname = ob_get_tname();
+    if (nullptr != ext_tname && nullptr != tname) {
+      IGNORE_RETURN databuff_printf(ext_tname, OB_EXTENED_THREAD_NAME_BUF_LEN,
+          "%s_%s", tname, token->timer_name_);
+    }
+  }
+}
+
+void ObTimerTaskThreadPool::clear_ext_tname()
+{
+  char *ext_tname = ob_get_extended_thread_name();
+  if (nullptr != ext_tname) {
+    ext_tname[0] = '\0';
+  }
+}
+
 ObTimerService::ObTimerService(uint64_t tenant_id /* = OB_SERVER_TENANT_ID */)
   : is_never_started_(true),
     is_stopped_(true),
diff --git a/deps/oblib/src/lib/task/ob_timer_service.h b/deps/oblib/src/lib/task/ob_timer_service.h
index a02087936..6e61f18bd 100644
--- a/deps/oblib/src/lib/task/ob_timer_service.h
+++ b/deps/oblib/src/lib/task/ob_timer_service.h
@@ -34,6 +34,19 @@ namespace common
 {
 
 extern uint64_t mtl_get_id();
+
+class ObTimerUtil
+{
+public:
+    static void copy_buff(char *buf, int64_t buf_len, const char *value)
+    {
+      if (nullptr != buf && nullptr != value && '\0' != value[0] && buf_len > 0) {
+        strncpy(buf, value, buf_len);
+        buf[buf_len - 1] = '\0';
+      }
+    }
+};
+
 class ObTimerTask
 {
 public:
@@ -72,6 +85,7 @@ public:
   TO_STRING_KV(KP(this), KP_(timer), KP_(task), K_(task_type), K_(scheduled_time), K_(delay));
 public:
   char task_type_[128];
+  char timer_name_[OB_THREAD_NAME_BUF_LEN];
   const ObTimer *timer_;
   ObTimerTask *task_;
   int64_t scheduled_time_;
@@ -87,6 +101,9 @@ public:
   virtual void handle(void *task_token) override;
   ObTimerTaskThreadPool(const ObTimerTaskThreadPool &) = delete;
   ObTimerTaskThreadPool &operator=(const ObTimerTaskThreadPool &) = delete;
+private:
+  static void set_ext_tname(const TaskToken *token);
+  static void clear_ext_tname();
 private:
   ObTimerService &service_;
 private: