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Posted to mapreduce-issues@hadoop.apache.org by "Purvesh Patel (JIRA)" <ji...@apache.org> on 2015/07/08 20:03:05 UTC

[jira] [Updated] (MAPREDUCE-6429) running M/R tasks under a security policy

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Purvesh Patel updated MAPREDUCE-6429:
-------------------------------------
    Attachment: Patch.pdf

> running M/R tasks under a security policy
> -----------------------------------------
>
>                 Key: MAPREDUCE-6429
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6429
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 2.5.0
>            Reporter: Purvesh Patel
>            Priority: Minor
>         Attachments: Patch.pdf
>
>
> When running M/R tasks under a security policy without the 'java.lang.reflect.ReflectPermission suppressAccessChecks' granted to the user code, we are unable to instantiate new keys for a WritableComparator. This patch wraps the WritableComparator#newKey in a doPrivileged block handling non-public key constructors. Please see attached file.



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