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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7596) Enable jsvc to work with Hadoop RPM package
Date Thu, 01 Sep 2011 16:00:10 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095369#comment-13095369
] 

Eric Yang commented on HADOOP-7596:
-----------------------------------

bq. /usr/lib/jvm/java-6-sun is not valid on my machine (I have the JDK package installed).
So why this path?

Using update-alternatives prompts user for selection of java, if there are multiple java installed.
 This can cause the installer to hang.  Hadoop only works with Sun Java.  Therefore, this
change was made in trunk to set to /usr/lib/jvm/java-6-sun for debian system.  Part of this
patch brings 0.20.2xx to be in sync with trunk code.

bq. +  DN_USER="-c hdfs"

Good catch, I made a mistake in my patch.  Glad the mistake was caught.  Thank you.

> Enable jsvc to work with Hadoop RPM package
> -------------------------------------------
>
>                 Key: HADOOP-7596
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7596
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.20.204.0
>         Environment: Java 6, RedHat EL 5.6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>             Fix For: 0.20.205.0
>
>         Attachments: HADOOP-7596.patch
>
>
> For secure Hadoop 0.20.2xx cluster, datanode can only run with 32 bit jvm because Hadoop
only packages 32 bit jsvc.  The build process should download proper jsvc versions base on
the build architecture.  In addition, the shell script should be enhanced to locate hadoop
jar files in the proper location.

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