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https://issues.apache.org/jira/browse/HDFS-708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12862396#action_12862396
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Joshua Harlow commented on HDFS-708:
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1. Done
2. Done
3. These methods have meanings for null (mainly for default checks for
existence for merging) and a random seed meaning null means no seed which is
possible. Duration for milliseconds can return an int though. Just that null
has a meaning if the default value for a config option is set to be a null
object. Which it is in a couple of cases.
4 & 5. Done (we are no measuring only the time around readByte and write())
6. Done
7. Done
8. Done
9 & 10. Done
11. Done and most classes made package private
15. Will add some tests.
> 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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