[ http://issues.apache.org/jira/browse/HADOOP-76?page=comments#action_12444960 ] Devaraj Das commented on HADOOP-76: -----------------------------------
Regarding the PhasedRecordWriter class, I think this should provide the option of creating a file, write to them and then call commit or abort. The current implementation binds it to a RecordWriter, but this should cater to things like Sequence files also (for e.g., RandomWriter should be able to use this functionality). > Implement speculative re-execution of reduces > --------------------------------------------- > > Key: HADOOP-76 > URL: http://issues.apache.org/jira/browse/HADOOP-76 > Project: Hadoop > Issue Type: Improvement > Components: mapred > Affects Versions: 0.1.0 > Reporter: Doug Cutting > Assigned To: Sanjay Dahiya > Priority: Minor > Attachments: Hadoop-76.patch, spec_reducev.patch > > > As a first step, reduce task outputs should go to temporary files which are > renamed when the task completes. -- 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
