CI fails

[Eyal Edri]

On Wed, Apr 20, 2016 at 10:20 AM, Barak Korren <bkorren at redhat.com> wrote:

> On 20 April 2016 at 10:16, Eyal Edri <eedri at redhat.com> wrote:
> >
> >
> > On Wed, Apr 20, 2016 at 9:28 AM, Barak Korren <bkorren at redhat.com>
> wrote:
> >>
> >> > I'd try that approach first, though the mirror is a good idea that
> will
> >> > probably have to be implemented anyhow once we start adding slaves,
> >> > having real
> >> > info on the network usage/errors will give us insight to actually
> >> > determine
> >> > what's the issue, and thus, what's the best solution.
> >> >
> >> > @infra what do you think?
> >> >
> >>
> >> The issue with mirroring is how can you make sure that you mirror fast
> >> enough to enable CI. Even if Gerrit can push to the mirror on patch
> >> submission, there will still be some time delta between the submission
> >> happening (and the patch event showing up in Jenins) and the mirror
> >> being synced. This looks like a nasty race condition.
> >> What the mirror essentially does is make sure that bits are copied
> >> from Amazom to PHX just once. I wonder if we can get the same benefit
> >> with a simple HTTP proxy, how proxy-able is the Git HTTP protocol?
> >>
> >
> > I think we should prioritize mirroring the GIT (not gerrit) repos to PHX,
> > this will help:
> >
> > Speed up all post merge jobs and reduce potential of errors from git
> clone
> > (they will be in the same network)
> > Reduce load (?) from the gerrit server and perhaps reduce errors of the
> per
> > patch jobs that will still run from gerrit.ovirt.org (AMAZON)
> > A longer goal will be either to migrate the gerrit server to PHX or to
> find
> > away to properly mirror the gerrit server (but then i fear there might be
> > race/problem as mentioned)
> >
>
> Please look at my comment about possible race conditions caused by
> mirroring. Simple mirroring may cause more trouble then its worth. We
> need to consider proxying instead.
>

I don't see how a race condition can occur with a merge commit,
Can you elaborate?




-- 
Eyal Edri
Associate Manager
RHEV DevOps
EMEA ENG Virtualization R&D
Red Hat Israel

phone: +972-9-7692018
irc: eedri (on #tlv #rhev-dev #rhev-integ)
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