events.js72
    throw er; //Unhandled 'error' event
Error: read ECONNRESET
    at errnoException (net.js:901:11)
    at TCP.onread (net.js:556:19)Write failed: Broken pipe

经常会没规律地报这个错误，服务器内存cpu都很正常
如何解决或catch这个异常？