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https://issues.apache.org/jira/browse/PIG-32?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antonio Magnaghi updated PIG-32:
--------------------------------

    Attachment: patch2007_12_27.diff

This patch includes yesterday's patch (as it has not been committed yet) plus 
the changes below.

With these changes I was able to get a full pass on the Pig test suite.

- Fixed the implementation of PigServer::capacity: it was still explicitly 
using Hadoop DFS, instead should use the abstract data storage class provided 
as part of the abstraction API and there was a dynamic cast that is now wrong.

- Added keys to the DataStorage interface for collecting statistics on capacity 
and provided support for those in the HDataStorage

- Fixed POMapredeuce: specifically, the copy operation was not properly 
handling the copy of the physical Op table

- Fixed implementation of openDFSFile in FileLocalizer: it was not 
instantiating a DataStorage object to access distributed data when running as 
part of a map-reduce job, causing the job to fail.

- Have also cleaned up some source files removing packages that were imported 
but now not used anymore.



> Abstraction Layer to decouple Pig from Back-End
> -----------------------------------------------
>
>                 Key: PIG-32
>                 URL: https://issues.apache.org/jira/browse/PIG-32
>             Project: Pig
>          Issue Type: New Feature
>          Components: impl
>            Reporter: Antonio Magnaghi
>            Assignee: Antonio Magnaghi
>         Attachments: DataStorage.diff, DataStorage20071212.diff, 
> patch2007_12_26.diff, patch2007_12_26_II.diff, patch2007_12_27.diff
>
>
> I'm opening a new issue to track the development work to support an 
> abstraction layer for Pig as defined at 
> http://wiki.apache.org/pig/PigAbstractionLayer

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