Plan for Sunsetting MozReview

Eric Shepherd (Sheppy) eshepherd at
Mon Aug 27 22:17:00 UTC 2018

We've noticed that attachment links are no longer working because they're
still trying to go to reviewboard, and there don't appear to be redirects.
See for example this bug: It has two
attachments. Clicking either one of them gives you a hard-hat page instead
of the changes.

On Fri, Jul 27, 2018 at 1:30 PM Mark Côté <mcote at> wrote:

> To follow up on my follow up, there were some good suggestions on
> dev-platform, so we're going to amend our plan somewhat.
> On August 20, we will remove public access to MozReview and move all the
> repositories on to (exact
> location TBD). We will create a simple redirection service that will map
> each of the following:
> * review-request diff to appropriate changeset in the review repo on
> * review request to associated bug
> * review to the associated BMO comment
> Only diffs that have “stub attachments” will be redirected, which means
> the most recent diffs on review requests. This includes any abandoned or
> obsoleted diffs.
> This will ensure that all stub attachments redirect to diffs, and that any
> links in docs, browser histories, etc., will
> redirect to equivalent content. It was also preserve any unpublished
> commits that were part of a diff's history.
> There is no change to the update-only period from August 6 to August 20.
> Mark
> On Thu, Jul 26, 2018 at 2:37 PM, Mark Côté <mcote at> wrote:
>> To follow up on some previous threads, here is the plan for deprecating,
>> archiving, and decommissioning MozReview.
>> The MozReview shutdown deadline is approaching. Although enhanced
>> commit-series support is still in progress (see update below), MozReview
>> users should start familiarizing themselves with Phabricator now. We have a
>> guide specifically for MozReview users to ease the transition (which will
>> be updated when the commit-series work is finalized):
>> From August 6 to August 20, use of MozReview will be restricted to
>> updates to existing reviews. In other words, review cycles in progress will
>> be given until August 20 to be completed, but no new commit series will be
>> permitted.
>> On August 20, we will remove public access to MozReview and archive
>> patches. Every landed, in-progress, and abandoned patch will be downloaded
>> from MozReview and stored in an S3 bucket. The “stub attachments” in
>> Bugzilla that currently redirect to MozReview will be updated to link to
>> the appropriate S3 bucket. Review flags and bug comments will be preserved.
>> After archiving is complete and verified, the MozReview servers will be
>> decommissioned.
>> We will also be writing a simple redirection service to map specific
>> MozReview reviews to associated BMO comments, review requests to associated
>> bugs, and review-request diffs to the appropriate S3 buckets. This service
>> will be up shortly after MozReview is decommissioned.
>> We realize and apologize that this is a fairly short timeline; however,
>> the current location of the MozReview servers is in the process of being
>> shut down, and thus it is urgent that we decommission this service soon to
>> allow an orderly exit.
>> As for enhanced support for series of commits in Phabricator, the new
>> command-line interface to submit, update, and apply series (bug 1471678) is
>> currently in review. The first release will support Mercurial only, but
>> git-cinnabar support will follow shortly (the code is designed with it in
>> mind). Work on series support in Lando (bug 1457525) is progressing; we
>> will be posting screenshots of the new UI shortly. It should be ready in
>> 2-3 weeks.
>> Please note that we eventually plan to decommission Splinter as well;
>> however, we know we need some time to work out the kinks in Phabricator.
>> Splinter will remain operational near-term, but we ask everybody to
>> familiarize themselves with Phabricator and file bugs when things don't
>> work. *Please do not wait for Splinter EOL to try Phabricator; we need your
>> feedback before then in order to act on it.*
>> Mark
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Eric Shepherd
Senior Technical Writer
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