Making an Ubuntu daemon out of a release while using heart
Sat Mar 12 20:22:23 CET 2011
I wrote a blog entry on how I do it...
Maybe not the easiest, but it works for me.
On Mar 9, 10:32 am, ori brost <> wrote:
> I have a release of a server program in Erlang that I would like to turn
> into a daemon. Currently I did this by writing a script (based on the
> release management script generated by rebar) which runs the Erlang VM
> synchronously, and writing an upstart .conf file which runs the script).
> My problem is that I want to use erl -heart. I have noticed that the
> whenever the VM dies, the heart process restarts it, but then the VM starts
> a new heart process and kills the old one. This means I have no permanent
> PIDs to follow. I was thinking of implementing my solution by having the
> script run a while-loop that will only exit if there is no heart process in
> the system (for now, assume there is no other erlang program running on the
> machine), and have upstart think that the script is the daemon.
> Does anyone have recommendation for a better solution? Or some general
> recommendation on how to make a daemon out of an Erlang server? Preferably
> using upstart?
> Best Regards,
> Ori Bar, Software Engineer
> Nivertech Ltd
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