Losing 4 months of mozregression does sort of suck though. Being able
to bisect down to a specific push is a lot more helpful than a
specific nightly. I have it often enough that I'm annoyed by only
having 1 year of builds.

What percentage of the space used for artifacts is actually builds
that are used for mozregression vs other stuff (like debug builds)? Is
there a way that we could somehow have different expiraries for the
different kinds of data? 1 year for logs, debug symbols and debug
builds seems very generous but 8 months for builds for mozregression
seems stingy.

-Jeff

On Fri, Jun 26, 2020 at 3:01 PM Kartikaya Gupta <kgu...@mozilla.com> wrote:
>
> Thanks for clarifying. If nightlies are still available for that
> period then I guess that's ok. It will be a slight inconvenience but
> probably not worth the effort to and save those builds for a few
> months.
>
> On Fri, Jun 26, 2020 at 9:53 AM Chris Cooper <c...@mozilla.com> wrote:
> >
> > I've received multiple replies about mozregression, so I'll provide
> > some more context.
> >
> > Taskcluster artifacts expire by default after one year. This means the
> > legacy cluster currently provides access to artifacts from June 26 to
> > Nov 9, 2019 (Nov 9 was the cutover date to the new deployment). By
> > shutting down the legacy cluster on July 3, we will be removing access
> > to just over 4 months of artifacts. Note that this won't affect
> > separate release archives like
> > http://archive.mozilla.org/pub/firefox/. The end result for
> > mozregression is that it will have fewer choices for intermediate
> > builds while bisecting if it needs to reach back into that 4-month
> > window and will need to rely on the nightlies.
> >
> > I looked at the specific S3 stats for older artifacts. I can't break
> > mozregression usage out specifically, but over the past year we (all
> > parties) have only accessed 19.04 GB of the 971.77 TB that are older
> > than 180 days.
> >
> > cheers,
> > --
> > coop
> >
> > On Fri, Jun 26, 2020 at 6:41 AM Kartikaya Gupta <kgu...@mozilla.com> wrote:
> > >
> > > Do these legacy artifacts include firefox builds that are used by
> > > mozregression? It looks like there's still a reference to the old
> > > taskcluster.net URL at
> > > https://github.com/mozilla/mozregression/blob/3df977cf7b9c50bdbe8495cde17baeb6c5724be2/mozregression/config.py#L23
> > > which gets used. It would be valuable to ensure mozregression can
> > > continue bisecting old builds after this decommissioning happens.
> > >
> > > On Thu, Jun 25, 2020 at 5:13 PM Chris Cooper <c...@mozilla.com> wrote:
> > > >
> > > > Hey all,
> > > >
> > > > You may recall that last fall we redeployed Taskcluster into two
> > > > distinct clusters, one to support Firefox CI and another to handle
> > > > Community projects[1]. We left the legacy deployment running to
> > > > provide access to CI artifacts that would only be reachable via the
> > > > old taskcluster.net interface.
> > > >
> > > > It turns out that we (Mozilla) don't access the legacy data very
> > > > often: we are storing close to a petabyte of older artifacts in AWS
> > > > and yet we access less than 25 GB of it. It costs us thousands of
> > > > dollars every month for that storage, and several hundred dollars more
> > > > to continue running the services to access it, so we've made a
> > > > decision to decommission the legacy Taskcluster deployment a few
> > > > months earlier than planned.
> > > >
> > > > We'll be shutting down the legacy services on July 3rd, 2020. That's
> > > > one week from today. A week later on July 10, we will begin deleting
> > > > the old artifacts.
> > > >
> > > > If you are one of the few individuals who does access artifacts from
> > > > the legacy cluster and haven't already spoken to us about
> > > > alternatives, please reach out before next Thursday.
> > > >
> > > > Note: this will *not* affect day-to-day CI on either the Firefox CI or
> > > > Community clusters at all.
> > > >
> > > > Thanks,
> > > > --
> > > > Chris Cooper
> > > > Manager, Taskcluster @ Mozilla
> > > > <c...@mozilla.com>
> > > >
> > > > 1. 
> > > > https://groups.google.com/g/mozilla.dev.platform/c/QhZFDhlQjxU/m/ngk8z6j1AgAJ
> > > > _______________________________________________
> > > > firefox-dev mailing list
> > > > firefox-...@mozilla.org
> > > > https://mail.mozilla.org/listinfo/firefox-dev
> > _______________________________________________
> > firefox-dev mailing list
> > firefox-...@mozilla.org
> > https://mail.mozilla.org/listinfo/firefox-dev
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