Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: common-issues@hadoop.apache.org
Date: Mon, 6 Jun 2011 09:44:59 +0000 (UTC)
From: "Hudson (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <2118717856.53.1307353499360.JavaMail.tomcat@hel.zones.apache.org>
In-Reply-To: 
 <314496369.49888.1306530467371.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Commented] (HADOOP-7335) Force entropy to come from
 non-true random for tests
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


    [ https://issues.apache.org/jira/browse/HADOOP-7335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13044762#comment-13044762 ] 

Hudson commented on HADOOP-7335:
--------------------------------

Integrated in Hadoop-Common-22-branch #62 (See [https://builds.apache.org/hudson/job/Hadoop-Common-22-branch/62/])
    HADOOP-7335. svn merge -c 1132511 from trunk

eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1132512
Files : 
* /hadoop/common/branches/branch-0.22/src/docs
* /hadoop/common/branches/branch-0.22
* /hadoop/common/branches/branch-0.22/src/test/core
* /hadoop/common/branches/branch-0.22/src/test/core/org/apache/hadoop/io/TestSequenceFile.java
* /hadoop/common/branches/branch-0.22/CHANGES.txt
* /hadoop/common/branches/branch-0.22/src/java
* /hadoop/common/branches/branch-0.22/build.xml


> 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.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira