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From Ted Yu <yuzhih...@gmail.com>
Subject Re: [VOTE] Merge branch hbase-11339 HBase MOB to trunk
Date Mon, 20 Jul 2015 20:53:35 GMT
Tuesday July 21 PDT is coming up soon.

I noticed that Jingcheng's email has Jon, Annop and Ram's names at the
bottom.
Does this mean that Jon, Anoop and Ram already gave (implicit) +1 ?

Cheers

On Fri, Jul 17, 2015 at 3:33 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> QA run for HBASE-11339 <https://issues.apache.org/jira/browse/HBASE-11339> is
> green.
>
> IntegrationTestIngestWithMOB has been run which passes.
>
> +1 on merging to master branch.
>
> On Fri, Jul 17, 2015 at 2:01 AM, Jingcheng Du <jingcheng.du@intel.com>
> wrote:
>
>> Hi all,
>>
>> The Moderate Object Storage (MOB) feature (HBASE-11339[1]) is modified I/O
>> and compaction path that allows individual moderately sized values
>> (100KB-10MB) to be stored so that write amplification is reduced when
>> compared to the normal I/O path. MOB is defined in the column family
>> and it is almost isolated with other components, the features and
>> performance
>> cannot be effected in normal columns. A detailed design doc and user guide
>> can
>> be found on the hbase-11339 jira. The code reside in the feature branch
>> hbase-11339[2], and now the latest mega patch for trunk is
>> available in RB[3].
>>
>> Jon had brought this in another DISCUSSION thread some days ago. We
>> collected
>> all the feedbacks there and had tried to incorporate them.
>>
>> Some improvements, like encryption of mob files, finding
>> corrupt mob files and dangling reference cells, have been implemented.
>>
>> The other point that was discussed is the use of MR for doing the MOB
>> compaction in phase-1
>> of the implementation. Now the dependency is removed, we have an inbuilt
>> MOB
>> compaction that
>> can be run automatically and it does not need MR anymore. Still the MR
>> compaction is provided
>> as a tool for users.
>>
>> Considering the fact that the concerns from the discussion thread have
>> been
>> addressed, we are putting
>> the merge to trunk up for a vote.
>> [] +1 proceed with merge to trunk.
>> [] 0 no opinion
>> [] -1 do not merge to trunk, because ...
>>
>> Our current merge vote policy requires at least 3 +1s from committers to
>> move forward[4]. The vote runs for 72 hours (the weekends are excluded),
>> and
>> it will be closed at the midnight of
>> Tuesday July 21 PDT.
>>
>> Thanks,
>> Jingcheng, Jon, Ram and Anoop.
>>
>> [1]: https://issues.apache.org/jira/browse/HBASE-11339
>> [2]: https://github.com/apache/hbase/tree/hbase-11339
>> [3]: https://reviews.apache.org/r/36391/
>> [4]: https://hbase.apache.org/book.html#_decisions
>>
>>
>>
>> --
>> View this message in context:
>> http://apache-hbase.679495.n3.nabble.com/VOTE-Merge-branch-hbase-11339-HBase-MOB-to-trunk-tp4073308.html
>> Sent from the HBase Developer mailing list archive at Nabble.com.
>>
>
>

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