Hi Eric.

A branch merge has happened during that time, and hence you might have seen
some old commits from that branch. If you go down further, you could see
those commits.

Copied from my git log:

commit 40b0045ebe0752cd3d1d09be00acbabdea983799
Author: Weiwei Yang <w...@apache.org>
Date:   Wed Dec 6 17:52:41 2017 +0800

    YARN-7610. Extend Distributed Shell to support launching job with
opportunistic containers. Contributed by Weiwei Yang.

commit 56b1ff80dd9fbcde8d21a604eff0babb3a16418f
Author: Xiao Chen <x...@apache.org>
Date:   Tue Dec 5 20:48:02 2017 -0800

    HDFS-12872. EC Checksum broken when BlockAccessToken is enabled.

commit 05c347fe51c01494ed8110f8f116a01c90205f13
Author: Weiwei Yang <w...@apache.org>
Date:   Wed Dec 6 12:21:52 2017 +0800

    YARN-7611. Node manager web UI should display container type in
containers page. Contributed by Weiwei Yang.

commit 73b86979d661f4ad56fcfc3a05a403dfcb2a860e
Author: Kai Zheng <zhengkai...@alibaba-inc.com>
Date:   Wed Dec 6 12:01:36 2017 +0800

    HADOOP-15039. Move SemaphoredDelegatingExecutor to hadoop-common.
Contributed by Genmao Yu

commit 44b06d34a537f8b558007cc92a5d1a8e59b5d86b
Author: Akira Ajisaka <aajis...@apache.org>
Date:   Wed Dec 6 11:40:33 2017 +0900

    HDFS-12889. Router UI is missing robots.txt file. Contributed by Bharat
Viswanadham.

commit 0311cf05358cd75388f48f048c44fba52ec90f00
Author: Wangda Tan <wan...@apache.org>
Date:   Tue Dec 5 13:09:49 2017 -0800

    YARN-7381. Enable the configuration:
yarn.nodemanager.log-container-debug-info.enabled by default in
yarn-default.xml. (Xuan Gong via wangda)

    Change-Id: I1ed58dafad5cc276eea5c0b0813cf04f57d73a87

commit 6555af81a26b0b72ec3bee7034e01f5bd84b1564
Author: Aaron Fabbri <fab...@apache.org>
Date:   Tue Dec 5 11:06:32 2017 -0800

    HADOOP-14475 Metrics of S3A don't print out when enabled. Contributed
by Younger and Sean Mackrory.



- Sunil


On Fri, Dec 15, 2017 at 12:29 AM Eric Yang <ey...@hortonworks.com> wrote:

> Hi all,
>
> While troubleshooting a trunk build failure, I notice the commit history
> for trunk between Nov 30th to Dec 6th are squashed or disappeared for no
> reason.  This seems to have taken place in the last 24 hours.  I can see
> the commit logs from github UI.  When doing a new clone from Apache Git and
> Github, the commit histories between those dates are gone.  I usually
> maintain two git repositories, one for testing and one for development.
> Both repositories were sync up with github frequently, and only test
> repository was updated today and the missing history only reflect in test
> repository.  This is the reason that I have the impression that this might
> have happened in the last 24 hours.  I did some spot check to see if the
> missing commits are in trunk.  The code seems to be in place, and only
> commit history is gone.
>
> Is there any way to fix the commit history?  Hopefully this is not a git
> bug, but some peer review might find out the root cause that could help to
> understand the damage.  Thank you
>
> Regards,
> Eric
>
>

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