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From "Thomas Weise (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2388) Make shim for Hadoop 0.20 and 0.23 support dynamic
Date Tue, 29 Nov 2011 01:45:40 GMT

     [ https://issues.apache.org/jira/browse/PIG-2388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Thomas Weise updated PIG-2388:
------------------------------

    Attachment: PIG-2388_branch-0.9.patch
    
> Make shim for Hadoop 0.20 and 0.23 support dynamic
> --------------------------------------------------
>
>                 Key: PIG-2388
>                 URL: https://issues.apache.org/jira/browse/PIG-2388
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.10, 0.9.2
>            Reporter: Thomas Weise
>            Assignee: Thomas Weise
>             Fix For: 0.10, 0.9.2
>
>         Attachments: PIG-2388_branch-0.9.patch
>
>
> We need a single Pig installation that works with both Hadoop versions. The current shim
implementation assumes different builds for each version. We can solve this statically through
internal build/installation system or by making the shim dynamic so that pig.jar will work
on both version with runtime detection. Attached patch is to convert the static shims into
a shim interface with 2 implementations, each of which will be compiled against the respective
Hadoop version and included into single pig.jar (similar to what Hive does).
> The default build behavior remains unchanged, only the shim for ${hadoopversion} will
be compiled. Both shims can be built via:  ant -Dbuild-all-shims=true

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