[ http://issues.apache.org/jira/browse/HADOOP-343?page=comments#action_12419349 ]
Owen O'Malley commented on HADOOP-343: -------------------------------------- I have concerns about this patch. It might have unintended consequences. In particular, if a node is slow you'll drop what you know about that node and put more load on the job tracker. This patch is certainly addressing a real problem, though. > In case of dead task tracker, the copy mapouts try copying all mapoutputs > from this tasktracker > ----------------------------------------------------------------------------------------------- > > Key: HADOOP-343 > URL: http://issues.apache.org/jira/browse/HADOOP-343 > Project: Hadoop > Type: Bug > Components: mapred > Versions: 0.5.0 > Reporter: Mahadev konar > Assignee: Mahadev konar > Attachments: bugfix.patch > > In case of a dead task tracker, the reduces which do not have the updated map > out locations try copygin files from this node and since there are failures > on copying, this leads to backoff and slowing down of the copy pahse. -- 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
