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From "Hitesh Shah (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3890) Change to nodemanager build now requires 32-bit libraries
Date Wed, 22 Feb 2012 01:44:49 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3890?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13213183#comment-13213183
] 

Hitesh Shah commented on MAPREDUCE-3890:
----------------------------------------

@Ralph, this was from MAPREDUCE-3880 to get the RC build unblocked but yes, the right fix
would be to use an env flag that could be handled in the configure step.
                
> Change to nodemanager build now requires 32-bit libraries
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-3890
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3890
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 0.23.1
>         Environment: Centos 6, x86_64
>            Reporter: Ralph H Castain
>
> Sometime during the last week, someone committed a change to:
> hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/pom.xml
> that inserted a -m32 in:
>                <configureEnvironment>
>                  <property>
>                    <name>CFLAGS</name>
>                   <value>-DHADOOP_CONF_DIR=${container-executor.conf.dir} -m32</value>
> This breaks the build on 64-bit systems that do not have 32-bit libraries installed.
The change was actually not required as 64-bit support for JNI and JVMs is readily available
and installed by default on many 64-bit systems. Removing the flag results in a completed
and functional build.
> If mandating 32-bit builds is desired, then a better solution would be to provide a configure
flag such as -DHADOOP_32bit_MODE, perhaps with a corresponding flag for 64-bit. Regardless,
locking the system to 32-bit builds seems a tad extreme.

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