[jira] Commented: (PIG-120) support hadoop map reduce in loal mode

["Alan Gates (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573340#action_12573340 ] 

Alan Gates commented on PIG-120:
--------------------------------

Based on your comments in https://issues.apache.org/jira/browse/PIG-119, my understanding is that you want to be able to run the existing pig tests in hadoop's local mode.  But this patch provides a different test that runs in local mode.  Is this not a step in the wrong direction?

> support hadoop map reduce in loal mode
> --------------------------------------
>
>                 Key: PIG-120
>                 URL: https://issues.apache.org/jira/browse/PIG-120
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Stefan Groschupf
>         Attachments: PIG-120_v_1.patch
>
>
> Currently pig support mapreduce and local as execution modes. LocalExecutionEngine is used for local and HExecutionEngine for map reduce. HExecutionEngine always expect that hadoop runs as cluster with a name node and jobtracker listing on a port. 
> Though, hadoop can also run in a local mode (LocalJobRunner) this would give several advantages. 
> First it would speed up the test suite significant. Second it would be possible to debug map reduce plans easily.
> For example we was able to debug and reproduce PIG-110 with this method.

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