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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1589) Need streaming examples in mapred/src/examples/streaming
Date Sun, 25 Apr 2010 02:09:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Chris Douglas updated MAPREDUCE-1589:

    Status: Open  (was: Patch Available)

* Rather than setting environment variables, the driver script should probably accept command-line
+export INDIR=/user/aloks/bigrams/input/
+export TMPDIR=/user/aloks/bigrams/tmpdir
+export OUTDIR=/user/aloks/bigrams/outdir
+export QUEUENAME=grideng
* The driver should probably not include validation.

In general, this seems like it would make a better blog post or addition to the wiki/documentation
than an example in the repository. Streaming examples are certainly helpful for users exploring
the framework, but the Java/pipes examples are included to show new users how to use APIs.
In contrast, the API for streaming is comparably universal. Do you agree?

> Need streaming examples in mapred/src/examples/streaming
> --------------------------------------------------------
>                 Key: MAPREDUCE-1589
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1589
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: examples
>            Reporter: Alok Singh
>            Assignee: Alok Singh
>            Priority: Minor
>             Fix For: 0.22.0
>         Attachments: streaming_example_bigrams.patch, streaming_example_bigrams.patch
> The examples directory contains the examples for pipes, java mapred but not for the streaming.
> We are planning to add the test cases for the streaming in the examples respository

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