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https://issues.apache.org/jira/browse/HADOOP-7335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HADOOP-7335:
--------------------------------

    Attachment: hadoop-7335.txt

Here's a patch to pass that flag to tests.

I'd appreciate if someone can test this on Windows/OSX to make sure it doesn't 
break their platforms.

> Force entropy to come from non-true random for tests
> ----------------------------------------------------
>
>                 Key: HADOOP-7335
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7335
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: build, test
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Minor
>         Attachments: hadoop-7335.txt
>
>
> Passing the system property {{-Djava.security.egd=file:///dev/urandom}} 
> forces the JVM to seed its PRNG from non-true random (/dev/urandom) instead 
> of the true random (/dev/random). This makes the tests run faster, since 
> without it they often hang waiting for entropy while Jetty is initializing.
> We should turn this on for the test targets by default, so developers/hudson 
> boxes don't have to make this change system-wide or use workarounds like 
> rngtools.

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