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From Stack <st...@duboce.net>
Subject Re: [VOTE] First hbase-2.0.0-alpha-3 Release Candidate is available
Date Sat, 16 Sep 2017 21:31:30 GMT
+1

St.Ack

On Fri, Sep 15, 2017 at 11:03 AM, Stack <stack@duboce.net> wrote:

> The first release candidate for HBase 2.0.0-alpha-3 is up at:
>
>   https://dist.apache.org/repos/dist/dev/hbase/hbase-2.0.0-alpha-3RC0/
>
> Maven artifacts are available from a staging directory here:
>
>   https://repository.apache.org/content/repositories/orgapachehbase-1175
>
> All was signed with my key at y 8ACC93D2
> <http://pgp.mit.edu/pks/lookup?op=get&search=0x9816C7FC8ACC93D2>
>
> I tagged the RC as 2.0.0-alpha-3RC0.2 (a5c8461ca87d6324f16ffd126b7651
> 46fdd5315a)
>
> hbase-2.0.0-alpha-3 is our third alpha release on our march toward an
> hbase-2.0.0. It includes all that was in previous alphas (new assignment
> manager, offheap read/write path, in-memory compactions, etc.), but had a
> focus on polishing our public API: old API that had been deprecated since
> hbase-1.0.0 or before was purged and new API was added with sympathetic
> deprecation of the previous. Along the Admin plane, incompatible changes
> were unavoidable; you will not be able to administer a hbase2 cluster using
> an hbase1 client (see adjacent "[DISCUSS] hbase-2.0.0 compatibility
> expectations" thread for discussion and see [1] for current list of
> Incompatibles).
>
> What is here will be our public API for 2.0.0 unless we get pushback from
> our gracious downstreamers. Please try it out. Shout now if you find a
> problem so we can fix it before we get to beta.
>
> Alpha-3 does not have the final version of our Coprocessor API. Finishing
> the Coprocessor API for hbase-2.0.0 is the topic of our last planned alpha,
> 2.0.0-alpha-4. The Coprocessor API changes pretty radically in hbase-2.0.0
> (though Coprocessor Endpoints will continue to work across an upgrade). See
> [2] for why and why it was unavoidable. Input now from Coprocessor API
> users before alpha-4 would be especially effective (I've cc'd our Phoenix
> brothers and sisters toward this end).
>
> hbase-2.0.0-alpha-3RC0 is a rough cut ('alpha'), not-for-production
> preview of what hbase-2.0.0 will look like. It is meant for devs and
> downstreamers to test drive and flag us early if we messed up anything
> ahead of our rolling GAs.
>
> The list of features addressed in 2.0.0 so far can be found here [3].
> There are about 2700+. The list of ~500 fixes in 2.0.0 exclusively can be
> found here [3].
>
> I've updated our overview doc. on the state of 2.0.0 [6] but JIRA 2.0.0
> label [5] has undergone extensive weeding and presents a fairly good
> picture on what is yet to do before we 2.0.0. Check it out.
>
> Please take it for a spin and vote on whether it ok to put out as our
> first alpha (bar is low for an 'alpha'). Let the VOTE be open for 72
> hours (Sunday)
>
> Thanks,
> St.Ack
>
> 1. Current list of Incompatibles: https://docs.google.com/document/d/
> 1WCsVlnHjJeKUcl7wHwqb4z9iEu_ktczrlKHK8N4SZzs/edit#heading=h.723jjn18p2jr
> 2. Why CPs are Incompatible: https://docs.google.com/document/d/
> 1WCsVlnHjJeKUcl7wHwqb4z9iEu_ktczrlKHK8N4SZzs/edit#heading=h.9k7mjbauv0wj
> 3. goo.gl/Gcrp4f
> 4. goo.gl/6dPqzG
> 5. https://issues.apache.org/jira/projects/HBASE/versions/12327188
> 6. https://docs.google.com/document/d/1WCsVlnHjJeKUcl7wHwqb4z9iEu_
> ktczrlKHK8N4SZzs/
>

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