UPDATE update_table_1 SET t_name='MZH0UXPQ27BH' WHERE id=67;
+ failed to receive response from observer. reason=Failed to receive from server. poll return POLLHUP=16 or POLLERR=str(event & select.POLLERR)
failed to receive response from observer. reason=Failed to receive from server. poll return POLLHUP=16 or POLLERR=str(event & select.POLLERR)