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以下是 pm2 process.json配置文件。该应用程序使用命令凝视

pm2 开始 /root/src/sample_v2/deploy-scripts/processes.json 

{
  "apps" : [{
    "name"        : "sample_app_v2",
    "script"      : "bin/www",
    "log_date_format"  : "YYYY-MM-DD HH:mm Z",
    "node_args"   : "--harmony",
    "cwd"         : "/root/src/sample_v2",
    "env": {
        "NODE_ENV": "production",
        "AWESOME_SERVICE_API_TOKEN": "xxx",
        "TZ": "Europe/Amsterdam"
    }
  }]
}

输出

PM2: 2015-03-31 17:58:58: Starting execution sequence in -fork mode- for app name:sample id:10
PM2: 2015-03-31 17:58:58: App name:sample id:10 online
sample-10 (out): 2015-02-06 21:38 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:38 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:38 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:38 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:39 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:39 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:39 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:39 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:39 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:39 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:39 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:39 +04:00: mongoclient.connect
sample-10 (out): 2015-02-06 21:39 +04:00: Started...[object Object]
sample-10 (out): 2015-02-06 21:39 +04:00: mongoclient.connect
sample-10 (out): 2015-03-31 17:59 +04:00: Started...[object Object]
sample-10 (err):     at Object.274:1 (cluster.js:594:5)
sample-10 (err):     at handleResponse (cluster.js:171:41)
sample-10 (err):     at respond (cluster.js:192:5)
sample-10 (err):     at handleMessage (cluster.js:202:5)
sample-10 (err):     at process.emit (events.js:117:20)
sample-10 (err):     at handleMessage (child_process.js:322:10)
sample-10 (err):     at child_process.js:396:7
sample-10 (err):     at process.handleConversion.net.Native.got (child_process.js:91:7)
sample-10 (err):     at process.<anonymous> (child_process.js:395:13)
sample-10 (err): TypeError: Cannot read property 'getsockname' of undefined
sample-10 (err):     at net.js:1083:27
sample-10 (err):     at Object.274:1 (cluster.js:594:5)
sample-10 (err):     at handleResponse (cluster.js:171:41)
sample-10 (err):     at respond (cluster.js:192:5)
sample-10 (err):     at handleMessage (cluster.js:202:5)
sample-10 (err):     at process.emit (events.js:117:20)
sample-10 (err):     at handleMessage (child_process.js:322:10)
sample-10 (err):     at child_process.js:396:7
sample-10 (err):     at process.handleConversion.net.Native.got (child_process.js:91:7)
sample-10 (err):     at process.<anonymous> (child_process.js:395:13)

看起来该过程已尝试启动10次。如何要求pm2不启动多个实例？

编辑2：

添加属性

"instances"   : 1

到 json 文件按预期工作，并且只启动一个进程。但它会引发警告

[WARN] You should not use the cluster_mode (-i) in production, it's still a beta feature. A front HTTP load balancer or interaction with NGINX will be developped in the future.

如何在fork 模式下启动进程并且仍然有单个实例。

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1 回答 1

2

在 json 设置中指定 exec_mode 和 instances 键：

{
  "apps" : [{
  "exec_mode": "fork",
  "instances": 1
  }]
}
于 2015-04-20T19:41:24.467 回答