I’m using the Daemon gem, and I’d like to trap the TERM signal so that
I can have graceful termination of my main execution loop:
$running = true;
Signal.trap(“TERM”) do
$running = false
end
while($running) do
#some operations that could take a few seconds
sleep(5)
end
However, I get some memory errors when I stop the process, and I can
sometimes get an extra process after a ‘restart’ is issued, that I
can’t kill with a ‘stop’
I looked at the source to the Daemon gem, and it warns not to trap the
TERM signal in your script. So how can I gracefully end my loop if I
don’t trap TERM?
On 9/28/07, Dean H. [email protected] wrote:
sleep(5)
end
However, I get some memory errors when I stop the process, and I can
sometimes get an extra process after a ‘restart’ is issued, that I
can’t kill with a ‘stop’
I looked at the source to the Daemon gem, and it warns not to trap the
TERM signal in your script. So how can I gracefully end my loop if I
don’t trap TERM?
You can trap any signal and use that to terminate your script. Try
the interrupt signal.
Signal.trap(‘INT’) do
end
To send this to your daemon process on a *NIX host …
kill -SIGINT pid
Blessings,
TwP
well I’d want the ‘daemonized’ script stopped when I issue
mydaemon_ctl stop, I think under the hood, daemons gem issues a TERM
to the controlled script.
not sure if you’re familiar with the daemons gem, but you typically
create a _ctl file that controls a ruby script (with an infinite
loop):
mydaemon_ctl:
Daemons.run File.dirname(FILE) + ‘/orderprocessor.rb’, options
mydaemon.rb:
while(true) do
end