[LON-CAPA-admin] Regular Server Restarts

[Bynum, Lee Hamilton]

Stuart,

Thanks for the quick response.  About once a month seems about right.

> Which temporary files are you considering clearing?

I was considering the files in the /home/httpd/perl/tmp/ folder on the access servers.

Lee


> -----Original Message-----
> From: lon-capa-admin-bounces at mail.lon-capa.org [mailto:lon-capa-admin-
> bounces at mail.lon-capa.org] On Behalf Of Stuart Raeburn
> Sent: Wednesday, October 07, 2015 3:48 PM
> To: lon-capa-admin at mail.lon-capa.org
> Subject: Re: [LON-CAPA-admin] Regular Server Restarts
> 
> Lee,
> 
> For the LON-CAPA domains I manage, I find that I typically need to
> restart my LON-CAPA VMs about once a month because of kernel security
> updates for the Linux distros I use.  The individual VMs restart very
> rapidly as compared with the time needed for the host itself to
> restart when I reboot that.
> 
> I typically restart the VMs between 5.30 am and 6.30 am so users are
> not impacted, but I avoid taking the MSU LON-CAPA library instance
> offline around 5.10 am and 6.10 am local time, as it is one of the
> authoritative "DNS servers" in the LON-CAPA network contacted daily by
> other servers to retrieve information about cluster membership when
> /home/httpd/perl/loncron runs.
> 
> > If we are shutting down apache and lon-capa anyway, we are also
> > considering clearing the temporary files on the access servers.
> 
> Which temporary files are you considering clearing?
> 
> Stuart Raeburn
> LON-CAPA Academic Consortium
> 
> Quoting "Bynum, Lee Hamilton" <leebynum at illinois.edu>:
> 
> > Hello Everyone,
> >
> > We are discussing implementing a cron job that will restart our
> > lon-capa servers every so often in order to flush out any issues
> > that pop up over time.  How often do other domains do this, if at
> > all?  Is this a reasonable idea or crazy?
> >
> > If we are shutting down apache and lon-capa anyway, we are also
> > considering clearing the temporary files on the access servers.
> > What are your thoughts on that?
> >
> > Thanks,
> >
> > Lee
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