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Posted to common-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2016/08/30 05:40:21 UTC
[jira] [Updated] (HADOOP-12081) Fix UserGroupInformation.java to
support 64-bit zLinux
[ https://issues.apache.org/jira/browse/HADOOP-12081?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Wang updated HADOOP-12081:
---------------------------------
Flags: (was: Important)
> 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, 3.0.0-alpha1
>
> 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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