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Posted to mapreduce-dev@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2010/06/02 07:04:39 UTC
[jira] Resolved: (MAPREDUCE-1350) Streaming should allow
TextInputFormat keys to be passed through
[ https://issues.apache.org/jira/browse/MAPREDUCE-1350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amareshwari Sriramadasu resolved MAPREDUCE-1350.
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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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