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https://issues.apache.org/jira/browse/HADOOP-3694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12618533#action_12618533
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Doug Cutting commented on HADOOP-3694:
--------------------------------------

The overall test runtime was over 10% faster than most other recent successful 
runs (1:25 from ~1:36).  Not huge, but something...  Should we commit this?

> if MiniDFS startup time could be improved, testing time would be reduced
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-3694
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3694
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: test
>    Affects Versions: 0.19.0
>            Reporter: Steve Loughran
>            Assignee: Doug Cutting
>             Fix For: 0.19.0
>
>         Attachments: HADOOP-3694.patch, HADOOP-3694.patch, HADOOP-3694.patch, 
> HADOOP-3694.patch
>
>
> Its taking me 140 minutes to run a test build; looking into the test results 
> its the 20s startup delay of every MiniDFS cluster that is slowing things 
> down. If we could find out why it is taking so long and cut it down, every 
> test case that relied on a cluster would be speeded up. 

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