线上遇到了一个pm2导致的overflow问题，检索pm2配关键词overflow，基本都是使用pm2监控nodejs内存之类，但是pm 2自身出现了overflow，求大神解救。。。

Centos 6 nvm安装 npm 2.14.12 pm2 1.0.2

pm2 start pm2 save pm2 startup centos 02:33:51 PM PID %usr %system %guest %CPU CPU Command 02:33:52 PM 2883 0.00 1.00 0.00 1.00 3 ruby 02:33:52 PM 4135 1.00 0.00 0.00 1.00 16 python 02:33:52 PM 13816 1.00 1.00 0.00 2.00 1 pidstat 02:33:52 PM 26503 18446744073709551616.00 18446744073709551616.00 0.00 18446744073709549568.00 0 PM2

02:33:52 PM PID %usr %system %guest %CPU CPU Command 02:33:53 PM 13816 1.00 2.00 0.00 3.00 1 pidstat 02:33:53 PM 26503 869.00 288.00 0.00 1157.00 0 PM2

02:33:53 PM PID %usr %system %guest %CPU CPU Command 02:33:54 PM 13816 0.00 3.00 0.00 3.00 1 pidstat 02:33:54 PM 17224 1.00 0.00 0.00 1.00 18 celery 02:33:54 PM 26503 18446744073709551616.00 18446744073709551616.00 0.00 18446744073709549568.00 0 PM2

02:33:54 PM PID %usr %system %guest %CPU CPU Command 02:33:55 PM 13816 1.00 1.00 0.00 2.00 1 pidstat 02:33:55 PM 26503 869.00 288.00 0.00 1157.00 0 PM2

02:33:55 PM PID %usr %system %guest %CPU CPU Command 02:33:56 PM 4135 0.00 1.00 0.00 1.00 16 python 02:33:56 PM 13816 1.00 2.00 0.00 3.00 1 pidstat 02:33:56 PM 17224 1.00 0.00 0.00 1.00 18 celery 02:33:56 PM 26503 18446744073709551616.00 18446744073709551616.00 0.00 18446744073709549568.00 0 PM2