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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10592) Refactor PerformanceEvaluation tool
Date Sun, 23 Feb 2014 02:23:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13909641#comment-13909641
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stack commented on HBASE-10592:
-------------------------------

+1 on making a testing tool easier to customize.  +1 on 0.96.

> Refactor PerformanceEvaluation tool
> -----------------------------------
>
>                 Key: HBASE-10592
>                 URL: https://issues.apache.org/jira/browse/HBASE-10592
>             Project: HBase
>          Issue Type: Improvement
>          Components: test
>    Affects Versions: 0.96.2, 0.98.1, 0.99.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>            Priority: Minor
>             Fix For: 0.99.0
>
>         Attachments: HBASE-10592.00-0.96.patch, HBASE-10592.00-0.98.patch, HBASE-10592.00.patch
>
>
> PerfEval is kind of a mess. It's painful to add new features because the test options
are itemized and passed as parameters to internal methods. Serialization is hand-rolled and
tedious. Ensuring support for mapreduce mode is a chore because of it.
> This patch refactors the tool. Options are now passed around to methods and such as a
POJO instead of one-by-one. Get rid of accessors that don't help anyone. On the mapreduce
side, serialization is now handled using json (jackson is a dependency anyway) instead of
the hand-rolled regex we used before. Also do away with custom InputSplit and FileFormat,
instead using Text and NLineInputFormat. On the local mode side, combine 1 client and N clients
into the same implementation. That implementation now uses an ExecutorService, so we can later
decouple number of client workers from number of client tasks. Finally, drop a bunch of confusing
local state, instead use the new TestOptions POJO as a parameter to static methods.



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