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https://issues.apache.org/jira/browse/HADOOP-6332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12867221#action_12867221
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Konstantin Boudnik commented on HADOOP-6332:
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I made the move from 0.21 to 0.22 to emphasize that the working is getting done
on trunk. All patches should be applicable to 0.21 as well. Sorry for the
confusion. I have just checked - the patch is applicable for 0.21 and will be
committed in both 0.21 and trunk. I'll fix the JIRA's target.
y20 is the Yahoo! internal release of Hadoop 0.20 where the initial work on
this framework has been performed. The original framework patches were
published against that source code hence the forward port work.
Herriot is the 'working' name of the framework. It came after James Herriot, a
veterinarian :)
> Large-scale Automated Test Framework
> ------------------------------------
>
> Key: HADOOP-6332
> URL: https://issues.apache.org/jira/browse/HADOOP-6332
> Project: Hadoop Common
> Issue Type: New Feature
> Components: test
> Affects Versions: 0.22.0
> Reporter: Arun C Murthy
> Assignee: Konstantin Boudnik
> Fix For: 0.22.0
>
> Attachments: 6332-phase2.fix1.patch, 6332-phase2.fix2.patch,
> 6332-phase2.patch, 6332.patch, 6332.patch, 6332.patch, 6332_v1.patch,
> 6332_v2.patch, HADOOP-6332-MR.patch, HADOOP-6332-MR.patch,
> HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch,
> HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch,
> HADOOP-6332.0.22.patch, HADOOP-6332.0.22.patch, HADOOP-6332.patch,
> HADOOP-6332.patch
>
>
> Hadoop would benefit from having a large-scale, automated, test-framework.
> This jira is meant to be a master-jira to track relevant work.
> ----
> The proposal is a junit-based, large-scale test framework which would run
> against _real_ clusters.
> There are several pieces we need to achieve this goal:
> # A set of utilities we can use in junit-based tests to work with real,
> large-scale hadoop clusters. E.g. utilities to bring up to deploy, start &
> stop clusters, bring down tasktrackers, datanodes, entire racks of both etc.
> # Enhanced control-ability and inspect-ability of the various components in
> the system e.g. daemons such as namenode, jobtracker should expose their
> data-structures for query/manipulation etc. Tests would be much more relevant
> if we could for e.g. query for specific states of the jobtracker, scheduler
> etc. Clearly these apis should _not_ be part of the production clusters -
> hence the proposal is to use aspectj to weave these new apis to
> debug-deployments.
> ----
> Related note: we should break up our tests into at least 3 categories:
> # src/test/unit -> Real unit tests using mock objects (e.g. HDFS-669 &
> MAPREDUCE-1050).
> # src/test/integration -> Current junit tests with Mini* clusters etc.
> # src/test/system -> HADOOP-6332 and it's children
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