[ https://issues.apache.org/jira/browse/MAPREDUCE-3812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinod Kumar Vavilapalli updated MAPREDUCE-3812: ----------------------------------------------- Status: Patch Available (was: Open) > Change default memory slot sizes to be 1.5GB > -------------------------------------------- > > Key: MAPREDUCE-3812 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3812 > Project: Hadoop Map/Reduce > Issue Type: Sub-task > Components: mrv2, performance > Affects Versions: 0.23.0 > Reporter: Vinod Kumar Vavilapalli > Assignee: Vinod Kumar Vavilapalli > Fix For: 0.23.1 > > Attachments: MAPREDUCE-3812-20120205.txt, MAPREDUCE-3812-20120206.txt > > > After a few performance improvements tracked at MAPREDUCE-3561, like > MAPREDUCE-3511 and MAPREDUCE-3567, even a 100K maps job can also run within > 1GB vmem. We earlier increased AM slot size from 1 slot to two slots to work > around the issues with AM heap. Now that those are fixed, we should go back > to 1GB. > This is just a configuration change. -- 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