diff --git a/deps/oblib/src/lib/utility/ob_tracepoint.h b/deps/oblib/src/lib/utility/ob_tracepoint.h
index 2ac4ec7c01..8cbad20546 100644
--- a/deps/oblib/src/lib/utility/ob_tracepoint.h
+++ b/deps/oblib/src/lib/utility/ob_tracepoint.h
@@ -717,6 +717,7 @@ class EventTable
       EN_SESS_INFO_VERI_CLIENT_ID_ERROR = 1183,
       EN_SESS_INFO_VERI_CONTROL_INFO_ERROR = 1184,
       EN_SESS_INFO_VERI_TXN_EXTRA_INFO_ERROR = 1185,
+      EN_SESS_POOL_MGR_CTRL = 1186,
       EN_ENABLE_NEWSORT_FORCE = 1200,
 
       // Transaction // 2001 - 2100
diff --git a/src/sql/session/ob_sql_session_mgr.cpp b/src/sql/session/ob_sql_session_mgr.cpp
index 54970cca11..1d3d0ec380 100644
--- a/src/sql/session/ob_sql_session_mgr.cpp
+++ b/src/sql/session/ob_sql_session_mgr.cpp
@@ -160,8 +160,11 @@ void ObTenantSQLSessionMgr::free_session(ObSQLSessionInfo *session)
 {
   int ret = OB_SUCCESS;
   SessionPool *session_pool = NULL;
+  // add tracepoint for control session pool.
+  int64_t code = 0;
+  code = OB_E(EventTable::EN_SESS_POOL_MGR_CTRL) OB_SUCCESS;
   if (ObTenantSQLSessionMgr::is_valid_tenant_id(session->get_login_tenant_id()) &&
-      session->can_release_to_pool()) {
+      session->can_release_to_pool() && code == OB_SUCCESS) {
     if (session->is_use_inner_allocator() && !session->is_tenant_killed()) {
       session_pool = &session_pool_;
     }