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From Stack <st...@duboce.net>
Subject Re: The 3rd HBase 0.98.0 release candidate (RC2) is available for download
Date Fri, 07 Feb 2014 23:06:21 GMT

I added a 0.98.0RC2 RS and M to a 6-node 0.96.x cluster under load.  All
kept going and all looks good digging in logs.  Its been running for the
last few hours.

I checked the md5.

Poked around the untar and it looks right.  Docs have right labels and
links basically work.


On Thu, Feb 6, 2014 at 6:14 PM, Andrew Purtell <apurtell@apache.org> wrote:

> The 3rd HBase 0.98.0 release candidate (RC2) is available for download at
> http://people.apache.org/~apurtell/0.98.0RC2/<
> http://people.apache.org/~apurtell/0.98.0RC1/>
> and
> Maven artifacts are also available in the temporary repository
> https://repository.apache.org/content/repositories/orgapachehbase-1005<
> https://repository.apache.org/content/repositories/orgapachehbase-1003>
> Signed with my code signing key D5365CCD.
> HBase 0.98.0 is the next major release after HBase 0.96. It is expected to
> be wire compatible with HBase 0.96, so clients and servers mixed between
> these versions will seamlessly interoperate, provided new features
> available in 0.98 are not enabled. However, the HBase 0.98.0 release is not
> intended to be binary compatible at the Java API level with any HBase 0.96
> release or earlier. You may need to recompile applications which reference
> the HBase JARs. Users of HBase 0.94 will have to perform an offline data
> migration procedure during upgrade. Consult the HBase Online Manual for
> more information. It is not necessary to migrate data from 0.94 to 0.98
> through 0.96, you can upgrade from 0.94 to 0.98 directly if desired
> following the same procedure for upgrading from 0.94 to 0.96.
> This release includes several new security features like per-cell
> visibility labels, per-cell ACLs, transparent encryption, and related
> changes to the coprocessor framework. Please see the Security section of
> the HBase Online Manual for more information. There are significant
> performance improvements, such as a change to the write ahead log (WAL)
> threading model that provides higher transaction throughput under high
> load, reverse scanners, MapReduce over snapshot files, and striped
> compaction. The list of changes in this release can be found here:
> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12310753&version=12323143
> Please try out the candidate and vote +1/-1 by midnight Pacific Time (00:00
> -0800 GMT) on February 13 on whether or not we should release this as
> 0.98.0.
> --
> Best regards,
>    - Andy
> Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)

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