You are viewing a plain text version of this content. The canonical link for it is here.
Posted to mapreduce-issues@hadoop.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2013/08/14 06:26:48 UTC
[jira] [Updated] (MAPREDUCE-5457) Add a KeyOnlyTextOutputFormat to
enable streaming to write out text files without separators
[ https://issues.apache.org/jira/browse/MAPREDUCE-5457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sandy Ryza updated MAPREDUCE-5457:
----------------------------------
Summary: Add a KeyOnlyTextOutputFormat to enable streaming to write out text files without separators (was: Add a KeyOnlyTextOutputFormat to enable streaming write out text files without separators)
> Add a KeyOnlyTextOutputFormat to enable streaming to write out text files without separators
> --------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5457
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5457
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 2.1.0-beta
> Reporter: Sandy Ryza
>
> MR jobs sometimes want to just output lines of text, not key/value pairs. TextOutputFormat handles this by, if a null value is given, outputting only the key with no separator. Streaming jobs are unable to take advantage of this, because they can't output null values. A text output format that ignores values and only outputs keys would allow streaming jobs to output lines of text.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira