接口调用时突然报了个错 ，但是通过 ngxtop 查看没有发现 500 错误 。重启了 nginx 后恢复正常 :

Error 500: Uncategorized exception occured during JMS processing; nested exception is javax.jms.JMSException: MQJM美国服务器S2005: failed to create MQQueueManager for 'mq01.dc2.irac.ecom.ad.hertz.com:ISPMQOTA302'; nested exception is com.ibm.mq.MQException: MQJE001: Completion Code 2, Reason 2059