[ http://issues.apache.org/jira/browse/HADOOP-542?page=all ]
Michel Tourn updated HADOOP-542:
--------------------------------
Attachment: bigmux.patch2
> on-the-fly merge sort, HADOOP-540, reformat
> -------------------------------------------
>
> Key: HADOOP-542
> URL: http://issues.apache.org/jira/browse/HADOOP-542
> Project: Hadoop
> Issue Type: New Feature
> Components: contrib/streaming
> Environment: Tested on Linux and Windows
> Reporter: Michel Tourn
> Attachments: bigmux.patch2
>
>
> A large patch for streaming. Changes:
> Support for on-the-fly merge sort of multiple map input files.
> This supposes that the inputs are already sorted.
> Support for reducer-NONE side-effects to a single local output with DFS
> inputs.
> This can be used to do an on-the-fly merge-sort of remote sorted files.
> (Compare to DFSShell -getmerge which does *catenation* of remote sorted files)
> The single output can be a regular file, a named pipe or a socket.
> URI Syntax: -mapsideoutput [file:/C:/win|file:/unix/|socket://host:port]
> Add an optional JUnit test for on-the-fly merge-sort.
> It requires Unix tools. It also works with cygwin.
> If it has been more than 10 secs since last time we did this:
> call reporter.setStatus() when consuming a stderr line from the Application.
> Calling setStatus with reducer-NONE was already done as part of HADOOP-413.
> So overall this resolves HADOOP-540.
> Reformat streaming code to conform to Hadoop conventions
> (indent 2 spaces, opening bracket on same-line)
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
