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From Todd Lipcon <t...@cloudera.com>
Subject Re: "89-fb" patches and HBase development workflow at Facebook
Date Mon, 06 Feb 2012 19:52:44 GMT
Hi Mikhail,

What you ask makes sense from your perspective but is difficult from
the community perspective. We're not familiar with your code base, so
it can be difficult to do a quality review on a non-trunk patch,
unless it's primarily new code.

Perhaps when there is a large patch with mostly new code, you can ping
the dev list or a few individual committers to ask them to take a


On Mon, Feb 6, 2012 at 11:36 AM, Mikhail Bautin
<bautin.mailing.lists@gmail.com> wrote:
> Hello Everyone,
> Some of you have probably been wondering about what these "[89-fb]" patches
> that our team submits for review are, so I would like to clarify that a
> little bit. We run a custom version of HBase based on 0.89 at Facebook,
> codenamed "0.89-fb", but we do our best effort to submit all of our
> improvements to the trunk as well. As a result, we frequently put an 89-fb
> version of a patch for review first, go through a review loop, and only
> then put the trunk patch out for review. We have noticed that in such
> situations our trunk patches sometimes receive many more comments than the
> earlier 89-fb versions of the same patches, which complicates our
> development workflow, because we have to go back and make these additional
> changes as a follow-up patch to 89-fb.
> It would greatly simplify our workflow if people treated 89-fb patches just
> like any other patches, and submitted most of their feedback on our code
> contributions (consisting of an 89-fb patch and a trunk patch) as part of
> whatever patch is published first. In other words, I would like to ask you
> to treat 89-fb patches just the same as trunk patches, because a trunk
> patch is likely to follow. That was our hope when we open-sourced our
> internal version of HBase and moved our code review workflow to the
> externally-visible review system at http://reviews.facebook.net. The only
> kind of 89-fb patches that we are not planning to port to trunk are tagged
> [master], containing custom changes to the 89-fb master code.
> It would be great to hear what you think about the above and how we can
> make it easier for you to give us early feedback on our code contributions.
> Thank you!
> --Mikhail

Todd Lipcon
Software Engineer, Cloudera

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