[ http://issues.apache.org/jira/browse/HADOOP-76?page=comments#action_12447830 ] Devaraj Das commented on HADOOP-76: -----------------------------------
One more comment - need to document somewhere how exactly (what config params) a user of the PhasedFileSystem (a map method) can access the JobId, TaskId and TIPId when he wants to create an instance of PhasedFileSystem. Better yet, add a new constructor in PhasedFileSystem that takes a JobConf object. Inside that constructor, you can get the JobId, TaskId and TIPId values and proceed. The user doesn't have to bother about details in this case. > 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, Hadoop-76_1.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
