问题
I can read in the Meteor mup documentation that it uses forever to restart a process if it crashes:
https://github.com/arunoda/meteor-up
At the command line if I issue a "forever list" it reports
info: No forever processes running
I have a Meteor app that keeps hanging and was wondering if I was using mup correctly, or if Forever would help.
Any advice would be appreciated. Please let me know if there is more information that I can provide.
- Also someone with a higher reputation please tag this question with "mup" if that's possible.
回答1:
Forever should list the process if it's running.
Check logs of that server with: tail -f /var/log/upstart/meteor.log
回答2:
I was able to see the forever processes by adding the -H flag to sudo. sudo by itself was not revealing the processes.
ubuntu@ip-123-45-67-890:~$ sudo -H forever list
info: Forever processes running
data: uid command script forever pid logfile uptime
data: [0] Jaj_ userdown app/main.js 13041 13047 /root/.forever/Jaj_.log 0:16:56:27.894
Looks like forever stores process information in the user's home directory, and somewhere in the mup process it was elevated to root and used that home directory. -H evidently made it look there.
来源：https://stackoverflow.com/questions/26821631/how-does-meteor-mup-use-forever