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Jonathan Eagles commented on MAPREDUCE-2666: -------------------------------------------- Please give initial feedback on the jobhistory storage approach. After getting feedback on the initial approach, will start implementing the recovery service portion of the fix. > MR-279: Need to retrieve shuffle port number on ApplicationMaster restart > ------------------------------------------------------------------------- > > Key: MAPREDUCE-2666 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-2666 > Project: Hadoop Map/Reduce > Issue Type: Sub-task > Components: mrv2 > Affects Versions: 0.23.0 > Reporter: Robert Joseph Evans > Assignee: Jonathan Eagles > Priority: Blocker > Fix For: 0.23.0 > > Attachments: MAPREDUCE-2666.patch > > > MAPREDUCE-2652 allows ShuffleHandler to return the port it is operating on. > In the case of an ApplicationMaster crash where it needs to be restarted that > information is lost. We either need to re-query it from each of the > NodeManagers or to persist it to the JobHistory logs and retrieve it again. > The job history logs is probably the simpler solution. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira