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Re: 2 copies started at once
From: |
Nick Upson |
Subject: |
Re: 2 copies started at once |
Date: |
Fri, 27 Jul 2007 13:22:16 +0100 |
I use
set daemon 120
I wondered if it was related to using restart into the script, which,
standard behaviour, attempts to stop the pid and removes the pid file
anyway. I need this in case the process crashed as a simple "start"
stops if the pid file exists.
does monit distinguish between start and restart if the command?
On 27/07/07, Jan-Henrik Haukeland <address@hidden> wrote:
> Monit simply does an exec of the script to create one process and
> there is nothing I can think of in monit's code that should be able
> to create this problem. The only thing I can think of is if, monit
> has a very short poll cycle (e.g. 1-5 sec) and the script does not
> write a pid file before monit polls again. So unless you use a very
> short poll cycle[1] I think you need to investigate and debug the
> start script to find the cause of the problem.
>
> [1] If you do use a short poll cycle, try "set daemon 60" instead.
>
> On 26. jul. 2007, at 16.16, Nick Upson wrote:
>
> > here is the config file entry
> >
> > check process bs1 with pidfile "/var/run/bs1.pid"
> > start program = "/opt/unb/bin/bs.sh 1 restart"
> > stop program = "/opt/unb/bin/bs.sh 1 stop"
> >
> > (I use restart in case it crashed, leaving the old pid file)
> >
> > I can see how restart could cause a problem if I called it twice in
> > very quick sucession but I didn't.
> >
> > On 26/07/07, Nick Upson <address@hidden> wrote:
> >> This may be related to the issue I asked about yesterday (turns
> >> out to
> >> be a bug in monit) or may not.
> >>
> >> Sometimes, even rarely, I do "monit start bs1" where bs1 is one of my
> >> processes and 2 are started at once (same start time shown from ps
> >> command, pid very close even).
> >>
> >> How can I avoid this?
> >>
> >> The config file entry is a normal one, nothing unusual. The script
> >> executed to start/stop was originally in /etc/init.d and worked fine
>
>
> --
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> http://lists.nongnu.org/mailman/listinfo/monit-general
>
- 2 copies started at once, Nick Upson, 2007/07/26
- Re: 2 copies started at once, Nick Upson, 2007/07/26
- Re: 2 copies started at once, Jan-Henrik Haukeland, 2007/07/27
- Re: 2 copies started at once,
Nick Upson <=
- Re: 2 copies started at once, Jan-Henrik Haukeland, 2007/07/27
- Re: 2 copies started at once, Nick Upson, 2007/07/27
- Re: 2 copies started at once, Jan-Henrik Haukeland, 2007/07/27
- Re: 2 copies started at once, Martin Pala, 2007/07/27
- Re: 2 copies started at once, Nick Upson, 2007/07/28
- Re: 2 copies started at once, Martin Pala, 2007/07/29
- Re: 2 copies started at once, Nick Upson, 2007/07/30
- Re: 2 copies started at once, Nick Upson, 2007/07/30
- Re: 2 copies started at once, Martin Pala, 2007/07/30
- Re: 2 copies started at once, Martin Pala, 2007/07/30