标签：into 家目录 appear min wait 方式 pid man 实时
http://www.cnblogs.com/laien/p/5826080.html
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。
Linux Binaries下载地址：https://nodejs.org/dist
PS: 如果你的主机无法连接公网，先找到能连公网的主机安装上面的方法安装pm2，然后拷贝到你要安装的主机。拷贝如下目录：
再创建相关软连接
假设你现在已经写好了一个app.js的文件，需要启动，你可以使用pm2进行管理
默认的目录是：当前用于的家目录下的.pm2目录（此目录可以自定义，请参考：五、自定义启动文件），详细信息如下：
创建一个test.json的示例文件，格式如下：
说明：
apps：json结构，apps是一个数组，每一个数组成员就是对应一个pm2中运行的应用
name：应用程序的名称
cwd：应用程序所在的目录
script：应用程序的脚本路径
exec_interpreter：应用程序的脚本类型，这里使用的shell，默认是nodejs
min_uptime：最小运行时间，这里设置的是60s即如果应用程序在60s内退出，pm2会认为程序异常退出，此时触发重启max_restarts设置数量
max_restarts：设置应用程序异常退出重启的次数，默认15次（从0开始计数）
exec_mode：应用程序启动模式，这里设置的是cluster_mode（集群），默认是fork
error_file：自定义应用程序的错误日志文件
out_file：自定义应用程序日志文件
pid_file：自定义应用程序的pid文件
watch：是否启用监控模式，默认是false。如果设置成true，当应用程序变动时，pm2会自动重载。这里也可以设置你要监控的文件。
详细参数列表：见附件八
已上面的test.json为例
其他可参数见官网：http://pm2.keymetrics.io
| Field | Type | Example | Description |
| name | string | "myAPI" | name your app will have in PM2 |
| script | string | "bin/app.js" | path of your app |
| args | list | ["--enable-logs", "-n", "15"] | arguments given to your app when it is launched |
| node_args | list | ["--harmony", "--max-stack-size=1024"] | arguments given to node when it is launched |
| cwd | string | "/var/www/app/prod" | the directory from which your app will be launched |
| exec_mode | string | "cluster" | "fork" mode is used by default, "cluster" mode can be configured with instances field |
| instances | number | 4 | number of instances for your clustered app, 0 means as much instances as you have CPU cores. a negative value means CPU cores - value (e.g -1 on a 4 cores machine will spawn 3 instances) |
| exec_interpreter | string | "node" | defaults to "node". can be "python", "ruby", "bash" or whatever interpreter you wish to use. "none" will execute your app as a binary executable |
| log_date_format | string | "YYYY-MM-DD HH:mm Z" | format in which timestamps will be displayed in the logs |
| error_file | string | "/var/log/node-app/node-app.stderr.log" | path to the specified error log file. PM2 generates one by default if not specified and you can find it by typing pm2 desc <app id> |
| out_file | string | "/var/log/node-app/node-app.stdout.log" | path to the specified output log file. PM2 generates one by default if not specified and you can find it by typing pm2 desc <app id> |
| pid_file | string | "pids/node-geo-api.pid" | path to the specified pid file. PM2 generates one by default if not specified and you can find it by typing pm2 desc <app id> |
| merge_logs | boolean | false | defaults to false. if true, it will merge logs from all instances of the same app into the same file |
| cron_restart | string | "1 0 * * *" | a cron pattern to restart your app. only works in "cluster" mode for now. soon to be avaible in "fork" mode as well |
| watch | boolean | true | enables the watch feature, defaults to "false". if true, it will restart your app everytime a file change is detected on the folder or subfolder of your app. |
| ignore_watch | list | ["[\/\\]\./", "node_modules"] | list of regex to ignore some file or folder names by the watch feature |
| min_uptime | number | 1000 | min uptime of the app to be considered started (i.e. if the app crashes in this time frame, the app will only be restarted the number set in max_restarts (default 15), after that it‘s errored) |
| max_restarts | number | 10 | number of consecutive unstable restarts (less than 1sec interval or custom time via min_uptime) before your app is considered errored and stop being |
| max_memory_restart | string | "150M" | your app will be restarted by PM2 if it exceeds the amount of memory specified. human-friendly format : it can be "10M", "100K", "2G" and so on... |
| env | object | {"NODE_ENV": "production", "ID": "42"} | env variables which will appear in your app |
| autorestart | boolean | false | true by default. if false, PM2 will not restart your app if it crashes or ends peacefully |
| vizion | boolean | false | true by default. if false, PM2 will start without vizion features (versioning control metadatas) |
| post_update | list | ["npm install", "echo launching the app"] | a list of commands which will be executed after you perform a Pull/Upgrade operation from Keymetrics dashboard |
| force | boolean | true | defaults to false. if true, you can start the same script several times which is usually not allowed by PM2 |
| next_gen_js | boolean | true | defaults to false. if true, PM2 will launch your app using embedded BabelJS features which means you can run ES6/ES7 javascript code |
| restart_delay | number | 4000 | time to wait before restarting a crashed app (in milliseconds). defaults to 0. |
标签：into 家目录 appear min wait 方式 pid man 实时
原文地址：http://www.cnblogs.com/zaifeng0108/p/7226488.html
