Make pm2 log to console

问题

I am running a node webserver using pm2. Since pm2 spawns another process and redirects stdout and stderr to files, I have to look somewhere else for the logs. Ideally, I would like to have the node process output to the same console window that I've run pm2 from. Otherwise, I would settle for pm2 run the node process with an active console window and have stdout and stderr of the node process write to that console window. How can this be achieved? I'm on a windows machine.

回答1:

I believe you can also see the stdout and stderr of a process that is running daemonized by the command pm2 logs or pm2 logs [app-name].

回答2:

Found the answer (their documentation is not that great), just added the --no-daemon flag, seems to have done it. Although, it appears that it's still logging to the file (even when using the flag) on the first uptime. Once the process gets restarted (I'm watching for file changes) it starts logging out to the console

回答3:

programmatically you can do something like this:

const pm2 = require('pm2')

pm2.connect(function(err) {
  if (err) {
    console.error(err);
    process.exit(2);
  }
  pm2.start([
    {
      script             : "server.js",
      output: "/dev/stdout",
      error: "/dev/stderr",
    },
  ]
    , function(err, proc) {
      if(err) {
        throw err
      }
    });
})

来源：https://stackoverflow.com/questions/36075460/make-pm2-log-to-console