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From jason hadoop <jason.had...@gmail.com>
Subject Re: [ANN] HBase 0.20.0-alpha available for download
Date Wed, 17 Jun 2009 11:32:55 GMT
Is there a requirement for hadoop 0.20 for HBase 0.20?


On Wed, Jun 17, 2009 at 1:44 AM, Andrew Purtell <apurtell@apache.org> wrote:

> Minor correction/addition: "Stargate" is undergoing shared development in
> two github trees:
>     http://github.com/macdiesel/stargate/tree/master
>     http://github.com/apurtell/stargate/tree/master
> The github network view can show which branch is leading at any point in
> time:
>    http://github.com/apurtell/stargate/network
>
>   - Andy
>
>
>
>
> ________________________________
> From: stack <stack@duboce.net>
> To: hbase-user@hadoop.apache.org; core-user@hadoop.apache.org
> Sent: Tuesday, June 16, 2009 10:23:20 PM
> Subject: [ANN] HBase 0.20.0-alpha available for download
>
> An alpha version of HBase 0.20.0 is available for download at:
>
>  http://people.apache.org/~stack/hbase-0.20.0-alpha/<http://people.apache.org/%7Estack/hbase-0.20.0-alpha/>
>
> We are making this release available to preview what is coming in HBase
> 0.20.0.  In short, 0.20.0 is about performance and high-availability.
>  Also,
> a new, richer API has been added and the old deprecated.  Here is a list of
> almost 300 issues addressed so far in 0.20.0: http://tinyurl.com/ntvheo
>
> This alpha release contains known bugs.  See http://tinyurl.com/kvfsft for
> the current list.  In particular, this alpha release is without a migration
> script to bring your 0.19.x era data forward to work on hbase 0.20.0.  A
> working, well-tested migration script will be in place before we cut the
> first HBase 0.20.0 release candidate some time in the next week or so.
>
> After download, please take the time to review the 0.20.0 'Getting Started'
> also available here:
>
> http://people.apache.org/~stack/hbase-0.20.0-alpha/docs/api/overview-summary.html#overview_description<http://people.apache.org/%7Estack/hbase-0.20.0-alpha/docs/api/overview-summary.html#overview_description>
> .
> HBase 0.20.0 has new dependencies, in particular it now depends on
> ZooKeeper.  With ZooKeeper in the mix a few core HBase configurations have
> been removed and replaced with ZooKeeper configurations instead.
>
> Also of note, HBase 0.20.0 will include "Stargate", an improved REST
> connector for HBase.  The old, bundled REST connector will be deprecated.
> Stargate is implemented using the Jersey framework.  It includes protobuf
> encoding support, has caching proxy awareness, supports batching for
> scanners and updates, and in general has the goal of enabling Web scale
> storage systems (a la S3) backed by HBase.  Currently its only available up
> on github, http://github.com/macdiesel/stargate/tree/master.  It will be
> added to a new contrib directory before we cut a release candidate.
>
> Please let us know if you have difficulty with the install, if you find the
> documentation missing or, if you trip over bugs hbasing.
>
> Yours,
> The HBasistas
>
>
>
>
>



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