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https://issues.apache.org/jira/browse/HDFS-708?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joshua Harlow updated HDFS-708:
-------------------------------

    Attachment: slive.patch

Updated with unit test that tries various operations, selection, range, config 
merging and checks to ensure that it is done in a acceptable fashion, also it 
runs the setup locally and does basic validation that it worked. Junit 4 
compatible. Some other small updates to data write and data verification.  
Added optional "dfs.write.packet.size" option as packetSize which just 
overrides the configuration value when merging. 

> A stress-test tool for HDFS.
> ----------------------------
>
>                 Key: HDFS-708
>                 URL: https://issues.apache.org/jira/browse/HDFS-708
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: test, tools
>    Affects Versions: 0.22.0
>            Reporter: Konstantin Shvachko
>            Assignee: Joshua Harlow
>             Fix For: 0.22.0
>
>         Attachments: slive.patch, SLiveTest.pdf
>
>
> It would be good to have a tool for automatic stress testing HDFS, which 
> would provide IO-intensive load on HDFS cluster.
> The idea is to start the tool, let it run overnight, and then be able to 
> analyze possible failures.

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