Re: [Condor-users] SYSTEM_PERIODIC_HOLD

[Dan Bradley <dan@xxxxxxxxxxxx>]

In Condor, SIGHUP tells a daemon to reread the configuration files.  
This shouldn't cause the daemon to restart unless there is an error in 
the configuration file.

--Dan

Mag Gam wrote:
> if I do a -HUP to the shadow's won't that restart other things?
>
> I am always worried about restarting stuff on condor. Is there a table
> in the manual that shows what is safe to restart and what isn't?
>
>
>
> On Thu, Nov 5, 2009 at 10:09 AM, Dan Bradley <dan@xxxxxxxxxxxx> wrote:
>   
> > Todd Tannenbaum wrote:
> >     
> > > Steven Timm wrote:
> > >
> > >       
> > > > system_periodic_hold is executed on the machine that reruns
> > > > the condor_schedd.  I think you have to restart the condor_schedd.
> > > >
> > > > Steve
> > > >
> > > >         
> > > Restarting the schedd will certainly work, but a reconfig is all that is
> > > required.  So you could reconfigure "on the fly" by making the change in
> > > the config file and then doing
> > >    condor_reconfig <name of submit machine>
> > > from a machine with ADMINISTRATOR authorization according to the config
> > > file (by default this means the central manager).
> > >
> > >       
> > That's true for idle jobs but not for running jobs.  (Perhaps this is an
> > oversight.)
> >
> > The workaround is to send SIGHUP to all running shadows in addition to
> > running condor_reconfig.
> >
> > --Dan
> >
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