[ https://issues.apache.org/jira/browse/MAPREDUCE-3813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinod Kumar Vavilapalli updated MAPREDUCE-3813: ----------------------------------------------- Status: Patch Available (was: Open) > RackResolver should maintain a cache to avoid repetitive lookups. > ----------------------------------------------------------------- > > Key: MAPREDUCE-3813 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3813 > 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-3813-20120205.txt > > > With the current code, during task creation, we repeatedly resolve hosts and > RackResolver doesn't cache any of the results. Caching will improve > performance. -- 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