PM2和nextjs在几个正常运行时间后停止响应请求

Question

我当前的设置是nginx->反向代理-> nextjs。我正在将pm2与集群模式一起用于nextjs。问题是nextjs正常运行约10分钟后，它停止响应而没有出现任何错误，但是当我使用pm2重新启动nextjs应用程序时，此问题得以解决。 nextjs应用程序只能运行10分钟，之后我必须重新启动。因此，我必须运行cron作业才能执行此操作。

pm2日志输出

2020-01-14T09:40:02: PM2 log: App [npm:0] starting in -cluster mode-
2020-01-14T09:40:02: PM2 log: App [npm:0] online
2020-01-14T09:40:02: PM2 log: App [npm:1] starting in -cluster mode-
2020-01-14T09:40:02: PM2 log: App [npm:1] online
2020-01-14T09:40:02: PM2 log: App [npm:2] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:2] online
2020-01-14T09:40:03: PM2 log: App [npm:3] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:3] online
2020-01-14T09:40:03: PM2 log: App [npm:4] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:4] online
2020-01-14T09:40:03: PM2 log: App [npm:5] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:5] online
2020-01-14T09:40:03: PM2 log: App [npm:6] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:6] online
2020-01-14T09:40:03: PM2 log: App [npm:7] starting in -cluster mode-
2020-01-14T09:40:03: PM2 log: App [npm:7] online
> Server started at http://localhost:3000 with development ? false
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (net.js:1306:14)
    at listenInCluster (net.js:1354:12)
    at Server.listen (net.js:1442:7)
    at /Users/username/Data/Projects/reactjs/ssr/server.js:90:8
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1333:8)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3000
}

Answer 1

尽管您没有提到使用npm，但我通过从ecosystem.config.json文件中删除npm的使用来解决了类似的问题。

之前（不起作用）：

{
  "apps": [
    {
      ...
      "script": "/usr/bin/npm",
      "args" : "start",
      ...
    }
  ]
}

工作后：

{
  "apps": [
    {
      ...
      "script": "./node_modules/.bin/next",
      "args" : "start -p 3000",
      ...
    }
  ]
}

我没有花时间去研究npm的问题。

我在这里找到了解决方案：express server port configuration issue with pm2 cluster mode