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From Jitendra Pandey <jiten...@hortonworks.com>
Subject Re: [VOTE] Merge HDFS-6584 Archival Storage to trunk
Date Mon, 08 Sep 2014 06:17:04 GMT
+1. Great work by Nicholas and Jing.


On Sun, Sep 7, 2014 at 8:09 PM, Vinayakumar B <vinayakumarb@apache.org>
wrote:

> I have closely observed all work done in this. This featute is very
> important for the storage only problems.
>
> Major work done by Nicholas and later Jing.
>
> Thanks to everyone who has participated in this.
>
> I feel the code is in good state to be merged to trunk.
> +1 for the merge.
>
> Regards,
> Vinay
> On Sep 8, 2014 1:29 AM, "Tsz Wo Sze" <szetszwo@yahoo.com.invalid> wrote:
>
> > Hi HDFS dev,
> >
> > We would like to propose merging the development branch
> > HDFS-6584 back to trunk.
> >
> > The work of HDFS-6584 is to support Archival Storage in
> > HDFS.  Hadoop needs a solution to
> > decouple growing storage capacity from compute capacity. Nodes with
> higher
> > density and less expensive storage with low compute power are becoming
> > available and can be used as cold storage in the clusters. Based on
> > policy, the
> > data from hot can be moved to the cold. Adding more nodes to the cold
> > storage
> > can grow the storage independent of the compute capacity in the cluster.
> >
> > The Archival Storage feature introduces a new concept of
> > storage policies (Hot, Warm, Cold) to HDFS and allows files to be stored
> in
> > different storage medias (DISK, ARCHIVE) according to the storage policy.
> > A new data migration tool is added for
> > archiving data.  For more details, please
> > see the design doc posted in HDFS-6584.
> >
> > There are currently 22 sub-tasks in HDFS-6584.  The main feature of
> > HDFS-6584 is implemented
> > and tested.  The remaining work is adding
> > user documentation, adding a test plan doc, adding more tests and fixing
> > some
> > minor bugs.  We will finish all of the
> > remaining work before merging the branch to trunk.
> >
> > The contributors of this work include Jing Zhao, Arpit
> > Agarwal, Vinayakumar B, Suresh Srinivas, Sanjay Radia, Jitendra Pandey,
> > Haohui
> > Mai and Tsz-Wo Nicholas Sze.  We thank
> > the community for giving valuable comments and feedbacks on the design of
> > this
> > work.
> >
> > The vote will last for 7 days.  Of course, I am +1 on it.
> >
> > Regards,
> > Tsz-Wo
> >
>



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