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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MAPREDUCE-1350) Streaming should allow TextInputFormat keys to be passed through
Date Wed, 02 Jun 2010 05:04:39 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Amareshwari Sriramadasu resolved MAPREDUCE-1350.

    Resolution: Duplicate

Duplicate of MAPREDUCE-1785

> Streaming should allow TextInputFormat keys to be passed through
> ----------------------------------------------------------------
>                 Key: MAPREDUCE-1350
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1350
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/streaming
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
> Streaming's PipeMapper automatically ignores the key (LongWritable file offset) coming
from TextInputFormat. This is usually what the user wants, but occasionally the file offsets
are useful - for example, after grepping a large file for a particular pattern, you may want
to look at the offset in the file where the pattern matched. There should be a boolean configuration
variable which overrides ignoreKey in PipeMapper.java:86

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