javascript PM2 (Node.js) 不监听指定端口
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PM2 (Node.js) not listening on specified port
提问by JamesE
I am trying to get a Node/Express application up and running on PM2. I can start the application fine with this command: npm start
我正在尝试在 PM2 上启动并运行 Node/Express 应用程序。我可以使用以下命令正常启动应用程序：npm start
This starts the app fine on port 3000.
这将在端口 3000 上正常启动应用程序。
If I try to start the application with pm2 start app.jsI get the following in the log:
如果我尝试启动应用程序，pm2 start app.js我会在日志中得到以下信息：
{ online: true, success: true, pid: 10714, pm2_version: '0.8.15' }
2014-06-12T19:52:06.789Z : [[[[ PM2/God daemon launched ]]]]
2014-06-12T19:52:06.800Z : RPC interface [READY] on 6666:localhost
2014-06-12T19:52:06.801Z : BUS system [READY] on 6667:localhost
2014-06-12T19:52:06.978Z : Entering in node wrap logic (cluster_mode) for script /home/user/test/app.js
2014-06-12T19:52:07.115Z : /home/user/test/app.js - id0 worker online
In my bin/www file I have the following specifying the port:
在我的 bin/www 文件中，我指定了以下端口：
app.set('port', process.env.PORT || 3000);
I have also tried running export PORT=3000
我也试过跑步 export PORT=3000
As well as the following in bin/www:
以及 bin/www 中的以下内容：
app.set('port', 3000);
If I run a netstat -an | grep 3000I get nothing back.
如果我运行 anetstat -an | grep 3000我什么也得不到。
回答by JamesE
The answer to this, for anyone using Express, is to run this command:
对于任何使用 Express 的人来说，答案是运行以下命令：
pm2 start ./bin/www
pm2 start ./bin/www
I had been running pm2 start app.jswhich did not work.
我一直在运行pm2 start app.js，但没有用。
回答by Peter Lyons
Your app.set('port'...calls are not directly relevant. app.setis just a place to store key/value settings but it provides zero functionality in and of itself. What you want to look at is where you call app.listensince that function is what accepts a port as an argument.
您的app.set('port'...电话没有直接关系。app.set只是一个存储键/值设置的地方，但它本身提供零功能。您要查看的是您调用的位置，app.listen因为该函数接受端口作为参数。
回答by Pavlo Sadovyi
I had a similar problem, with nginx configured as proxy server I couldn't see the Express app running by PM2. When I removed my ~/.pm2folder it worked.
我有一个类似的问题，将 nginx 配置为代理服务器，我看不到 PM2 运行的 Express 应用程序。当我删除我的~/.pm2文件夹时，它起作用了。
回答by Дмитрий И
I use this
我用这个
pm2.json
pm2.json
[
{
"exec_mode": "fork_mode",
"cwd" : "/opt/acme_service",
"script": "acme_service.js",
"name": "acme_service",
"restart_delay":"9000",
"port" : 8081,
"node_args": [ "--acme" ],
"error_file": "/var/log/acme_service.err.log",
"out_file": "/var/log/acme_service.out.log"
}
]
"port" : 8081 - accept port connection. same in app
“端口”：8081 - 接受端口连接。在应用程序中相同
var server = app.listen(8081 , '0.0.0.0');
