[ https://issues.apache.org/jira/browse/MAPREDUCE-1485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer resolved MAPREDUCE-1485. ----------------------------------------- Resolution: Fixed user limits were implemented. > CapacityScheduler should have prevent a single job taking over large parts of > a cluster > --------------------------------------------------------------------------------------- > > Key: MAPREDUCE-1485 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-1485 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Components: capacity-sched > Reporter: Arun C Murthy > Assignee: Arun C Murthy > > The proposal is to have a per-queue limit on the number of concurrent tasks a > job can run on a cluster. > We've seen cases where a single, large, job took over a majority of the > cluster - worse, it meant that any bug in it caused issues for both the > NameNode _and_ the JobTracker. -- This message was sent by Atlassian JIRA (v6.2#6252)