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https://issues.apache.org/jira/browse/HADOOP-12081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14635070#comment-14635070
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Hudson commented on HADOOP-12081:
---------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #993 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/993/])
HADOOP-12081. Fix UserGroupInformation.java to support 64-bit zLinux.
(aajisaka) (aajisaka: rev 773c670943757681feeafb227a2d0c29d48f38f1)
*
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java
* hadoop-common-project/hadoop-common/CHANGES.txt
> Fix UserGroupInformation.java to support 64-bit zLinux
> ------------------------------------------------------
>
> Key: HADOOP-12081
> URL: https://issues.apache.org/jira/browse/HADOOP-12081
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.6.0
> Environment: zLinux
> Reporter: Adam Roberts
> Assignee: Akira AJISAKA
> Labels: zlinux
> Fix For: 2.8.0
>
> Attachments: HADOOP-12081.001.patch
>
>
> Currently the 64 bit check in security/UserGroupInformation.java uses os.arch
> and checks for "64". s390x is returned on IBM's z platform: s390x is 64 bit.
> Without this change, if we try to use HDFS with Spark, we get a fatal error
> (unable to login as we can't find a login class).
> This address fixes said issue by identifying s390x as a 64 bit platform and
> thus allowing Spark to run on zLinux. A simple fix with very big implications!
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