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Hadoop, mail # dev - [VOTE] Merge HDFS-4949 to trunk


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Andrew Wang 2013-10-17, 22:01
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Colin McCabe 2013-10-17, 22:07
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Chris Nauroth 2013-10-18, 17:48
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Colin McCabe 2013-10-18, 18:15
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Re: [VOTE] Merge HDFS-4949 to trunk
Chris Nauroth 2013-10-18, 20:37
+1

Sounds great!

Regarding testing caching+federation, this is another thing that I had
intended to pick up as part of HDFS-5149.  I'm not sure if I can get this
done in the next 7 days, so I'll keep you posted.

Chris Nauroth
Hortonworks
http://hortonworks.com/

On Fri, Oct 18, 2013 at 11:15 AM, Colin McCabe <[EMAIL PROTECTED]>wrote:

> Hi Chris,
>
> I think it's feasible to complete those tasks in the next 7 days.
> Andrew is on HDFS-5386.
>
> The test plan document is a great idea.  We'll try to get that up
> early next week.  We have a lot of unit tests now, clearly, but some
> manual testing is important too.
>
> If we discover any issues during testing, then we can push out the
> merge timeframe.  For example, one area that probably needs more
> testing is caching+federation.
>
> I would like to get HDFS-5378 and HDFS-5366 in as well.
>
> The other subtasks are "nice to have" but not really critical, and I
> think it would be just as easy to do them in trunk.  We're hoping that
> having this in trunk will make it easier for us to collaborate on
> HDFS-2832 and other ongoing work.
>
> > Also, I want to confirm that this vote only covers trunk.
> > I don't see branch-2 mentioned, so I assume that we're
> > not voting on merge to branch-2 yet.
>
> Yeah, this vote is only to merge to trunk.
>
> cheers.
> Colin
>
> On Fri, Oct 18, 2013 at 10:48 AM, Chris Nauroth
> <[EMAIL PROTECTED]> wrote:
> > I agree that the code has reached a stable point.  Colin and Andrew,
> thank
> > you for your contributions and collaboration.
> >
> > Throughout development, I've watched the feature grow by running daily
> > builds in a pseudo-distributed deployment.  As of this week, the full
> > feature set is working end-to-end.  I also think we've reached a point of
> > API stability for clients who want to control caching programmatically.
> >
> > There are several things that I'd like to see completed before the merge
> as
> > pre-requisites:
> >
> > - HDFS-5203: Concurrent clients that add a cache directive on the same
> path
> > may prematurely uncache from each other.
> > - HDFS-5385: Caching RPCs are AtMostOnce, but do not persist client ID
> and
> > call ID to edit log.
> > - HDFS-5386: Add feature documentation for datanode caching.
> > - Standard clean-ups to satisfy Jenkins pre-commit on the merge patch.
> >  (For example, I know we've introduced some Javadoc warnings.)
> > - Full test suite run on Windows.  (The feature is not yet implemented on
> > Windows.  This is just intended to catch regressions.)
> > - Test plan posted to HDFS-4949, similar in scope to the snapshot test
> plan
> > that was posted to HDFS-2802.  For my own part, I've run the new unit
> > tests, and I've tested end-to-end in a pseudo-distributed deployment.
>  It's
> > unlikely that I'll get a chance to test fully distributed before the vote
> > closes, so I'm curious to hear if you've done this on your side yet.
> >
> > Also, I want to confirm that this vote only covers trunk.  I don't see
> > branch-2 mentioned, so I assume that we're not voting on merge to
> branch-2
> > yet.
> >
> > Before I cast my vote, can you please discuss whether or not it's
> feasible
> > to complete all of the above in the next 7 days?  For the issues assigned
> > to me, I do expect to complete them.
> >
> > Thanks again for all of your hard work!
> >
> > Chris Nauroth
> > Hortonworks
> > http://hortonworks.com/
> >
> >
> >
> > On Thu, Oct 17, 2013 at 3:07 PM, Colin McCabe <[EMAIL PROTECTED]
> >wrote:
> >
> >> +1.  Thanks, guys.
> >>
> >> best,
> >> Colin
> >>
> >> On Thu, Oct 17, 2013 at 3:01 PM, Andrew Wang <[EMAIL PROTECTED]>
> >> wrote:
> >> > Hello all,
> >> >
> >> > I'd like to call a vote to merge the HDFS-4949 branch (in-memory
> caching)
> >> > to trunk. Colin McCabe and I have been hard at work the last 3.5
> months
> >> > implementing this feature, and feel that it's reached a level of
> >> stability
> >> > and utility where it's ready for broader testing and integration.

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Chris Nauroth 2013-10-23, 20:03
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Andrew Wang 2013-10-23, 21:18
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Chris Nauroth 2013-10-24, 20:45
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Aaron T. Myers 2013-10-25, 06:29
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Suresh Srinivas 2013-10-25, 17:07
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Chris Nauroth 2013-10-25, 16:51
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Colin McCabe 2013-10-24, 23:02
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Aaron T. Myers 2013-10-24, 20:32