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https://issues.apache.org/jira/browse/HADOOP-6332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12787127#action_12787127
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Konstantin Boudnik commented on HADOOP-6332:
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Great, thanks for putting it together, Stephen! And you're correct about the
deployment: it should be out of the scope of this JIRA.
> 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
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Fix For: 0.21.0
>
> Attachments: 6332_v1.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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