2011/6/2 Alexander Farber <alexander.farber@xxxxxxxxx>:
> On Thu, Jun 2, 2011 at 10:10 PM, Les Mikesell <lesmikesell@xxxxxxxxx> wrote:
>> On 6/2/2011 2:46 PM, Alexander Farber wrote:
>>>
>>> The Perl server poll()s TCP-sockets and forks
>>> only once - at the startup by calling this method:
>>>
>>> sub daemonize {
>>> die "Can not fork: $!\n" unless defined (my $child = fork());
>>> # the parent should die
>>> exit 0 if $child;
>>
>> [....]
>>
>>> Since I'm tired of restarting the server manually,
>>> I've tried to add it to the /etc/inittab:
>>>
>>> pref:3:respawn:/bin/su -c '/usr/local/pref/pref.pl' nobody
>>>
>>> (and I've added a nightly cronjob to
>>> "pkill pref.pl" in the hope to refresh perl this way).
>>>
>>> Unfortunately this does not work as expected -
>>> in the /var/log/messages I see that the script
>>> is being started again and again every 5 mins:
>>>
>>> Jun 2 18:55:56 myhost init: Id "pref"
>>> respawning too fast: disabled for 5 minutes
>>>
>>> What am I doing wrong here?
>>
>> It needs to not fork/exit on its own if you want init to respawn when it
>> exits.
>
> Thank you Les, so init does the forking for me?
>
> I'll try it in few hours, when I have less users online.
>
> And I wonder how often does init try to run
> a program, before it stops for 5 minutes...
>
> Mark, my pref.pl is 80 lines long, the rest is in few modules.
>
> Yes, perl interpreter 5.8.8 crashes for me once a week,
> but I don't really have a chance to solve it - I'm not a
> perl interpreter developer myself, I don't have an easy
> test case for them to try, I don't have a 2nd server or time
> to reproduce it myself. I need to solve this problem now
> (going to vacation on Sunday).
how about using monit to monitor/restart your perl server?
http://mmonit.com/monit/
--
Eero
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