安装配置
pm2是一个带有负载均衡功能的应用进程管理器，类似有Supervisor，forever，详细参数见官网：http://pm2.keymetrics.io
1、安装 nodejs 和 pm2
curl -sL https://rpm.nodesource.com/setup_8.x | bash - wget https://nodejs.org/dist/latest-v12.x/node-v12.22.8-linux-x64.tar.gz tar zxvf node-v12.22.8-linux-x64.tar.gz mv node-v12.22.8-linux-x64 /usr/local/node ln -sv /usr/local/node/bin/node /usr/local/bin/node ln -sv /usr/local/node/bin/npm /usr/local/bin/npm npm config set registry https://registry.npm.taobao.org yum install -y nodejs npm install pm2@latest -g
常用指令
启动
pm2 start app.js pm2 start app.js --name my-api #my-api为PM2进程名称 pm2 start app.js -i 0 #根据CPU核数启动进程个数 pm2 start app.js --watch #实时监控app.js的方式启动，当app.js文件有变动时，pm2会自动reload
查看进程
pm2 list pm2 show 0 或者 # pm2 info 0 #查看进程详细信息，0为PM2进程id
监控
pm2 monit
停止
pm2 stop all pm2 stop 0
重新加载
pm2 reload all pm2 reload 0
重启
pm2 restart all pm2 restart 0
删除
pm2 delete 0 pm2 delete all
日志操作
pm2 logs [–raw] pm2 flush pm2 reloadlogs
升级版本
npm install pm2@lastest -g pm2 updatePM2
自启动
sudo -u postgres pm2 start app.js --name konga sudo -u postgres pm2 startup sudo -u postgres pm2 save
启动和管理 jar
配置文件编写
vim datax-admin.json
{
"apps" : {
"name":"datax-admin",
"script":"java",
"args":[
"-Xmx1024M",
"-Xms1024M",
"-Xmn448M",
"-XX:MaxMetaspaceSize=192M",
"-XX:MetaspaceSize=192M",
"-jar",
"datax-admin-2.1.1.jar",
],
"error_file":"./log/datax-admin-err.log",
"out_file":"./log/datax-admin-out.log",
"merge_logs":true,
"log_date_format":"YYYY/MM/DD HH:mm:ss",
"min_uptime": "60s",
"max_restarts": 30,
"autorestart": true,
"restart_delay": "60"
}
}
带变量的配置文件
node build/app.js server --port=8081 /usr/bin/nohup /usr/local/node/bin/node /var/lib/grafana/plugins/grafana-image-renderer/build/app.js server --port=8081 &
{
"apps" : {
"name":"image-renderer",
"script":"node",
"args":[
"/var/lib/grafana/plugins/grafana-image-renderer/build/app.js",
"server",
"--port=8081",
],
"error_file":"/tmp/image-renereer-err.log",
"merge_logs":true,
"log_date_format":"YYYY/MM/DD HH:mm:ss",
"min_uptime": "60s",
"max_restarts": 30,
"autorestart": true,
"restart_delay": "60"
}
}
启动
pm2 start datax-admin.json
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