Sandy Ryza created MAPREDUCE-5457:
-------------------------------------
Summary: Add a KeyOnlyTextOutputFormat to enable streaming 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
