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https://issues.apache.org/jira/browse/HADOOP-6248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12761781#action_12761781
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Allen Wittenauer commented on HADOOP-6248:
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For performance testing, I am not seeing what this gives me over gridmix.  
There simply isn't enough here to generate a load that can be measured and 
compared and contrasted.

For QA testing of my application, why wouldn't I just try to run my job on a 
smaller chunk of representative data that has a known outcome?  Also: if I've 
already written a mapreduce job, surely I'm competent enough to run 
get/put/mkdir/etc.

The fact that it requires python: that's a big fail in my book.  Maybe I missed 
it, but I'm not seeing anything that couldn't be handled in shell, never mind 
the fact that perl is much more universally installed everywhere. [Yes, I'm on 
a portability kick. ;) ]

At this point, I don't think this is ready and/or has a clear goal in mind.

> Circus: Proposal and Preliminary Code for a Hadoop System Testing Framework
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-6248
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6248
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: test
>         Environment: Python, bash
>            Reporter: Alex Loddengaard
>         Attachments: HADOOP-6248.diff, HADOOP-6248_v2.diff, 
> HADOOP-6248_v3.diff
>
>
> This issue contains a proposal and preliminary source code for Circus, a 
> Hadoop system testing framework.  At a high level, Circus will help Hadoop 
> users and QA engineers to run system tests on a configurable Hadoop cluster, 
> or distribution of Hadoop.  See the comment below for the proposal itself.

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