[ http://issues.apache.org/jira/browse/HADOOP-76?page=comments#action_12451490 ] Sanjay Dahiya commented on HADOOP-76: -------------------------------------
4. Why did you remove the "/ reduces.length" in computing the avgProgress in JobInProgress.java line 357? That seems wrong. JobInProgress.java:313 already divides the progressDelta of a task by no of tasks before adding it to reduce progress. That averages it out over reduces, or am I missing something there? > 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, Hadoop-76_2.patch, > Hadoop-76_3.patch, Hadoop-76_4.patch, Hadoop-76_5.patch, Hadoop-76_6.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
