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