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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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Konstantin Shvachko updated HADOOP-7335:
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Fix Version/s: 0.22.0
> 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
> Fix For: 0.22.0
>
> 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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