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Carlo Curino commented on YARN-568: ----------------------------------- Following a conversation with Sandy, we post a new version of the patch adding a better ordering (reverse priority + reverse appid + reverse contid). Sandy will edit this further to implement the "kill previously listed containers first". > FairScheduler: support for work-preserving preemption > ------------------------------------------------------ > > Key: YARN-568 > URL: https://issues.apache.org/jira/browse/YARN-568 > Project: Hadoop YARN > Issue Type: Sub-task > Components: scheduler > Reporter: Carlo Curino > Assignee: Carlo Curino > Attachments: YARN-568-1.patch, YARN-568.patch, YARN-568.patch > > > In the attached patch, we modified the FairScheduler to substitute its > preemption-by-killling with a work-preserving version of preemption (followed > by killing if the AMs do not respond quickly enough). This should allows to > run preemption checking more often, but kill less often (proper tuning to be > investigated). Depends on YARN-567 and YARN-45, is related to YARN-569. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira