[ https://issues.apache.org/jira/browse/MAPREDUCE-763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sreekanth Ramakrishnan reassigned MAPREDUCE-763: ------------------------------------------------ Assignee: rahul k singh (was: Sreekanth Ramakrishnan) > Capacity scheduler should clean up reservations if it runs tasks on nodes > other than where it has made reservations > ------------------------------------------------------------------------------------------------------------------- > > Key: MAPREDUCE-763 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-763 > Project: Hadoop Map/Reduce > Issue Type: Bug > Components: contrib/capacity-sched > Affects Versions: 0.21.0 > Reporter: Hemanth Yamijala > Assignee: rahul k singh > Fix For: 0.21.0 > > > Currently capacity scheduler makes a reservation on nodes for high memory > jobs that cannot currently run at the time. It could happen that in the > meantime other tasktrackers become free to run the tasks of this job. Ideally > in the next heartbeat from the reserved TTs the reservation should be > removed. Otherwise it could unnecessarily block capacity for a while (until > the TT has enough slots free to run a task of this job). -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.