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From Allen Wittenauer ...@apache.org>
Subject Re: [VOTE] Merge feature branch HADOOP-12930
Date Sat, 14 May 2016 17:33:20 GMT

This vote closes in 2 days and the only response has been from a non-committer and one of
the 137 other committers on the project…. it’d be great if some others could take a look.


> On May 12, 2016, at 6:07 PM, Andrew Wang <andrew.wang@cloudera.com> wrote:
> +1. I looked at the patches on the branch, wasn't too bad to review. As
> Allen said, there's some code movement, assorted other nice doc and shell
> fixups.
> Found one extra typo, which I added to HADOOP-13129.
> Best,
> Andrew
> On Wed, May 11, 2016 at 1:14 AM, Sean Busbey <busbey@cloudera.com> wrote:
>> +1 (non-binding)
>> reviewed everything, filed an additional subtask for a very trivial
>> typo in the docs. should be fine to make a full issue after close and
>> then fix.
>> tried merging locally, tried running through new shell tests (both
>> with and without bats installed), tried making an example custom
>> command (valid and malformed). everything looks great.
>> On Mon, May 9, 2016 at 1:26 PM, Allen Wittenauer <aw@apache.org> wrote:
>>>        Hey gang!
>>>        I’d like to call a vote to run for 7 days (ending May 16 at
>> 13:30 PT) to merge the HADOOP-12930 feature branch into trunk. This branch
>> was developed exclusively by me as per the discussion two months ago as a
>> way to make what would be a rather large patch hopefully easier to review.
>> The vast majority of the branch is code movement in the same file,
>> additional license headers, maven assembly hooks for distribution, and
>> variable renames. Not a whole lot of new code, but a big diff file
>> none-the-less.
>>>        This branch modifies the ‘hadoop’, ‘hdfs’, ‘mapred’, and ‘yarn’
>> commands to allow for subcommands to be added or modified at runtime.  This
>> allows for individual users or entire sites to tweak the execution
>> environment to suit their local needs.  For example, it has been a practice
>> for some locations to change the distcp jar out for a custom one.  Using
>> this functionality, it is possible that the ‘hadoop distcp’ command could
>> run the local version without overwriting the bundled jar and for existing
>> documentation (read: results from Internet searches) to work as written
>> without modification. This has the potential to be a huge win, especially
>> for:
>>>                * advanced end users looking to supplement the Apache
>> Hadoop experience
>>>                * operations teams that may be able to leverage existing
>> documentation without having to remain local “exception” docs
>>>                * development groups wanting an easy way to trial
>> experimental features
>>>        Additionally, this branch includes the following, related
>> changes:
>>>                * Adds the first unit tests for the ‘hadoop’ command
>>>                * Adds the infrastructure for hdfs script testing and
>> the first unit test for the ‘hdfs’ command
>>>                * Modifies the hadoop-tools components to be dynamic
>> rather than hard coded
>>>                * Renames the shell profiles for hdfs, mapred, and yarn
>> to be consistent with other bundled profiles, including the ones introduced
>> in this branch
>>>        Documentation, including a ‘hello world’-style example, is in
>> the UnixShellGuide markdown file.  (Of course!)
>>>         I am at ApacheCon this week if anyone wants to discuss in-depth.
>>>        Thanks!
>>> P.S.,
>>>        There are still two open sub-tasks.  These are blocked by other
>> issues so that we may add unit testing to the shell code in those
>> respective areas.  I’ll covert to full issues after HADOOP-12930 is closed.
>>> ---------------------------------------------------------------------
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>> --
>> busbey
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