远程服务器项目更新后，不知怎么回事，npm start运行一切正常，客户端登陆测试都没问题，pm2部署后台运行就是起不来，以前一直都是pm2正常运行很久了，查看日志是pm2的问题，回想没对pm2有什么操作啊！重新安装pm2，还是不行，郁闷，只能求助网络了，查了很多也没看见有用的解决方法，还是到GitHub pm2项目issues找答案吧！找相识错误的试试，最后https://github.com/Unitech/pm2/issues/1466下面的答复解决了我的问题。
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| 禁止开机启动:
pm2 unstartup
杀死守护程序：
pm2 kill
卸载：
npm remove pm2 -g
删除所有保存的配置和日志：
rm -rf ~/.pm2
重新安装：
npm install pm2 -g
重新pm2部署我的nodejs项目后台运行：
pm2 start pm2.production.json
出现了久违的pm2：
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\_\_/\\\\\\\\\\\\\\_\_\_\_/\\\\\_\_\_\_\_\_\_\_\_\_\_\_/\\\\\_\_\_\_/\\\\\\\\\\_\_\_\_\_
\_\/\\\/////////\\\\_\/\\\\\\\_\_\_\_\_\_\_\_/\\\\\\\_\_/\\\///////\\\\_\_\_
\_\/\\\\_\_\_\_\_\_\_\/\\\\_\/\\\//\\\\_\_\_\_/\\\//\\\\_\///\_\_\_\_\_\_\//\\\\_\_
\_\/\\\\\\\\\\\\\/\_\_\/\\\\///\\\/\\\/\_\/\\\\_\_\_\_\_\_\_\_\_\_\_/\\\/\_\_\_
\_\/\\\/////////\_\_\_\_\/\\\\_\_\///\\\/\_\_\_\/\\\\_\_\_\_\_\_\_\_/\\\//\_\_\_\_\_
\_\/\\\\_\_\_\_\_\_\_\_\_\_\_\_\_\/\\\\_\_\_\_\///\_\_\_\_\_\/\\\\_\_\_\_\_/\\\//\_\_\_\_\_\_\_\_
\_\/\\\\_\_\_\_\_\_\_\_\_\_\_\_\_\/\\\\_\_\_\_\_\_\_\_\_\_\_\_\_\/\\\\_\_\_/\\\/\_\_\_\_\_\_\_\_\_\_\_
\_\/\\\\_\_\_\_\_\_\_\_\_\_\_\_\_\/\\\\_\_\_\_\_\_\_\_\_\_\_\_\_\/\\\\_\_/\\\\\\\\\\\\\\\\_
\_\///\_\_\_\_\_\_\_\_\_\_\_\_\_\_\///\_\_\_\_\_\_\_\_\_\_\_\_\_\_\///\_\_\///////////////\_\_
Runtime Edition
PM2 is a Production Process Manager for Node.js applications
with a built-in Load Balancer.
Start and Daemonize any application:
$ pm2 start app.js
Load Balance 4 instances of api.js:
$ pm2 start api.js -i 4
Monitor in production:
$ pm2 monitor
Make pm2 auto-boot at server restart:
$ pm2 startup
To go further checkout:
http://pm2.io/
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