mirrors monitoring tools

[Ewoud Kohl van Wijngaarden]

On Tue, Oct 06, 2015 at 05:41:48PM +0200, Sandro Bonazzola wrote:
> On Tue, Oct 6, 2015 at 5:18 PM, Nadav Goldin <ngoldin at redhat.com> wrote:
> 
> > Hi,
> > I've been reviewing 3 solutions suggested for monitoring oVirt's mirror
> > sites: mirmon(used by CentOS), Debian Mirror Checker, MirrorManager(used by
> > Fedora). I've put what I gathered so far here(google docs)
> > <https://docs.google.com/a/redhat.com/document/d/1NErdN07kSLZQ_ystxsp9-6Fwq_6zhZMF8VxKO3w2oys/edit?usp=sharing>
> > .
> >
> > imo, there are 2 main problems:
> > 1. monitoring that the mirrors are up and synced( logs and http access)
> > 2. updating the mirrorlist(../yum-repo/mirrorlist) file automatically when
> > a mirror site is not synced after X amount of time.
> >
> > so far installing only mirmon, it seems like the simpler tool that can
> > address problem 1 easily, in order to handle problem 2 another script that
> > filters the log file needs to be written.
> > MirrorManager needs further inspection(has many other features which I am
> > not sure if we need?)
> > and Debian Mirror Checker, i think, is not worth it(incomplete docs, not
> > maintained, debian infra specific - assuming I found the correct repository)
> >
> > what do you think?
> >
> >
> I'd like to have mirmon running as a first step. it won't help if rsync
> fails in the middle but at least it will give us an hint of the health of
> the mirrors.

Failing in the middle could be solved by moving to a 2-step rsync: first
all but a file with a timestamp and the last one only the timestamp, but
I agree that partial monitoring is better than no monitoring.

> You can add bouncer to your list: https://wiki.mozilla.org/Bouncer