[CP] Fix: Deserialized session lifecycle issues

src/sql/session/ob_basic_session_info.cpp

@@ -3848,6 +3848,8 @@ OB_DEF_DESERIALIZE(ObBasicSessionInfo)
       user_var_val.reset();
       if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_name))) {
         LOG_WARN("fail to deserialize user var name", K(i), K(data_len), K(pos), K(ret));
+      } else if (OB_FAIL(name_pool_.write_string(user_var_name, &user_var_name))) {
+        LOG_WARN("fail to write user_var_name to string_buf_", K(user_var_name), K(ret));
       } else if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_val.meta_))) {
         LOG_WARN("fail to deserialize user var val meta", K(i), K(data_len), K(pos), K(ret));
       } else if (OB_FAIL(serialization::decode(buf, data_len, pos, user_var_val.value_))) {
@@ -3985,6 +3987,27 @@ OB_DEF_DESERIALIZE(ObBasicSessionInfo)
               thread_data_.client_addr_,
               thread_data_.user_client_addr_,
               process_query_time_);
+  // deep copy string.
+  if (OB_SUCC(ret)) {
+    if (OB_FAIL(name_pool_.write_string(app_trace_id_, &app_trace_id_))) {
+      LOG_WARN("fail to write app_trace_id to string_buf_", K(app_trace_id_), K(ret));
+    } else if (OB_FAIL(name_pool_.write_string(thread_data_.user_name_,
+                                              &thread_data_.user_name_))) {
+      LOG_WARN("fail to write username to string_buf_", K(thread_data_.user_name_), K(ret));
+    } else if (OB_FAIL(name_pool_.write_string(thread_data_.user_at_host_name_,
+                                              &thread_data_.user_at_host_name_))) {
+      LOG_WARN("fail to write user_at_host_name to string_buf_",
+                K(thread_data_.user_at_host_name_), K(ret));
+    } else if (OB_FAIL(name_pool_.write_string(thread_data_.user_at_client_ip_,
+                                              &thread_data_.user_at_client_ip_))) {
+      LOG_WARN("fail to write user_at_client_ip to string_buf_",
+                K(thread_data_.user_at_client_ip_), K(ret));
+    } else if (OB_FAIL(name_pool_.write_string(sys_var_in_pc_str_, &sys_var_in_pc_str_))) {
+      LOG_WARN("fail to write sys_var_in_pc_str to string_buf_", K(sys_var_in_pc_str_), K(ret));
+    } else if (OB_FAIL(name_pool_.write_string(config_in_pc_str_, &config_in_pc_str_))) {
+      LOG_WARN("fail to write config_in_pc_str_ to string_buf_", K(config_in_pc_str_), K(ret));
+    }
+  }
   trans_flags_.set_need_serial_exec(need_serial_exec);
   sql_scope_flags_.set_flags(sql_scope_flags);
   is_deserialized_ = true;