diff --git a/src/observer/mysql/obmp_connect.cpp b/src/observer/mysql/obmp_connect.cpp
index 9b53738783..1adb70800e 100644
--- a/src/observer/mysql/obmp_connect.cpp
+++ b/src/observer/mysql/obmp_connect.cpp
@@ -209,6 +209,7 @@ int ObMPConnect::process()
   ObSMConnection *conn = NULL;
   uint64_t tenant_id = OB_INVALID_ID;
   ObSQLSessionInfo *session = NULL;
+  bool autocommit = false;
   MAKE_TENANT_SWITCH_SCOPE_GUARD(guard);
   THIS_WORKER.set_timeout_ts(INT64_MAX); // avoid see a former timeout value
   if (THE_TRACE != nullptr) {
@@ -275,6 +276,7 @@ int ObMPConnect::process()
                "group_id", conn->group_id_,
                "sql_req_level", conn->sql_req_level_);
       conn->set_auth_phase();
+      session->get_autocommit(autocommit);
     }
 
     int proc_ret = ret;
@@ -364,7 +366,7 @@ int ObMPConnect::process()
              K(from_java_client), K(from_oci_client), K(from_jdbc_client),
              K(capability), K(proxy_capability), K(use_ssl),
              "c/s protocol", get_cs_protocol_type_name(protoType),
-             K(proc_ret), K(ret));
+             K(autocommit), K(proc_ret), K(ret));
   }
   return ret;
 }
diff --git a/src/sql/engine/cmd/ob_variable_set_executor.cpp b/src/sql/engine/cmd/ob_variable_set_executor.cpp
index a4d504972d..edd0f46c83 100644
--- a/src/sql/engine/cmd/ob_variable_set_executor.cpp
+++ b/src/sql/engine/cmd/ob_variable_set_executor.cpp
@@ -935,8 +935,8 @@ int ObVariableSetExecutor::process_session_autocommit_hook(ObExecContext &exec_c
         // 其它只影响AC标志位，但无需做commit操作
       }
     }
+    LOG_INFO("set var: autocommit", K(ret), K(orig_ac), "to", autocommit, K(my_session->get_sessid()));
   }
-  LOG_INFO("set var: autocommit", K(ret), K(orig_ac), "to", autocommit);
   return ret;
 }
 
diff --git a/src/sql/session/ob_basic_session_info.cpp b/src/sql/session/ob_basic_session_info.cpp
index 95264a5c3d..f3d42e42ab 100644
--- a/src/sql/session/ob_basic_session_info.cpp
+++ b/src/sql/session/ob_basic_session_info.cpp
@@ -3534,6 +3534,8 @@ int ObBasicSessionInfo::replace_new_session_label(uint64_t policy_id, const ObLa
 int64_t ObBasicSessionInfo::to_string(char *buf, const int64_t buf_len) const
 {
   int64_t pos = 0;
+  bool ac = false;
+  get_autocommit(ac),
   J_OBJ_START();
   J_KV(KP(this), "id", sessid_,
        N_TENANT, get_tenant_name(), "tenant_id", tenant_id_,
@@ -3542,6 +3544,7 @@ int64_t ObBasicSessionInfo::to_string(char *buf, const int64_t buf_len) const
        N_USER, (lib::is_oracle_mode() ? get_user_name() : get_user_at_host()),
        "consistency_level", consistency_level_,
        "session_state", thread_data_.state_,
+       "autocommit", ac,
        "tx", OB_P(tx_desc_));
   J_OBJ_END();
   return pos;
diff --git a/src/sql/session/ob_sql_session_info.cpp b/src/sql/session/ob_sql_session_info.cpp
index 5250042920..fdef218d69 100644
--- a/src/sql/session/ob_sql_session_info.cpp
+++ b/src/sql/session/ob_sql_session_info.cpp
@@ -346,11 +346,11 @@ void ObSQLSessionInfo::reset(bool skip_sys_var)
     optimizer_tracer_.reset();
     sql_plan_manager_ = NULL;
     destroy_session_plan_mgr();
-    txn_free_route_ctx_.reset();
     expect_group_id_ = OB_INVALID_ID;
     group_id_not_expected_ = false;
     //call at last time
     ObBasicSessionInfo::reset(skip_sys_var);
+    txn_free_route_ctx_.reset();
   }
 }