Force entropy to come from non-true random for tests
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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
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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