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From Eli Collins <...@cloudera.com>
Subject Re: Heads up - merge branch-trunk-win to trunk
Date Fri, 08 Feb 2013 02:46:00 GMT
Thanks for the update Suresh.  Has any testing been done on the branch on
Linux aside from running the unit tests?


On Thu, Feb 7, 2013 at 5:42 PM, Suresh Srinivas <suresh@hortonworks.com>wrote:

> The support for Hadoop on Windows was proposed in
> HADOOP-8079<https://issues.apache.org/jira/browse/HADOOP-8079> almost
> a year ago. The goal was to make Hadoop natively integrated, full-featured,
> and performance and scalability tuned on Windows Server or Windows Azure.
> We are happy to announce that a lot of progress has been made in this
> regard.
> Initial work started in a feature branch, branch-1-win, based on branch-1.
> The details related to the work done in the branch can be seen in
> CHANGES.txt<
> http://svn.apache.org/viewvc/hadoop/common/branches/branch-1-win/CHANGES.branch-1-win.txt?view=markup
> >.
> This work has been ported to a branch, branch-trunk-win, based on trunk.
> Merge patch for this is available on
> HADOOP-8562<https://issues.apache.org/jira/browse/HADOOP-8562>
> .
> Highlights of the work done so far:
> 1. Necessary changes in Hadoop to run natively on Windows. These changes
> handle differences in platforms related to path names, process/task
> management etc.
> 2. Addition of winutils tools for managing file permissions and ownership,
> user group mapping, hardlinks, symbolic links, chmod, disk utilization, and
> process/task management.
> 3. Added cmd scripts equivalent to existing shell scripts hadoop-daemon.sh,
> start and stop scripts.
> 4. Addition of block placement policy implemnation to support cloud
> enviroment, more specifically Azure.
> We are very close to wrapping up the work in branch-trunk-win and getting
> ready for a merge. Currently the merge patch is passing close to 100% of
> unit tests on Linux. Soon I will call for a vote to merge this branch into
> trunk.
> Next steps:
> 1. Call for vote to merge branch-trunk-win to trunk, when the work
> completes and precommit build is clean.
> 2. Start a discussion on adding Jenkins precommit builds on windows and how
> to integrate that with the existing commit process.
> Let me know if you have any questions.
> Regards,
> Suresh

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