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Mayank Bansal updated YARN-2055: -------------------------------- Assignee: (was: Sunil G) > Preemtion: Jobs are failing due to AMs are getting launched and killed > multiple times > ------------------------------------------------------------------------------------- > > Key: YARN-2055 > URL: https://issues.apache.org/jira/browse/YARN-2055 > Project: Hadoop YARN > Issue Type: Sub-task > Components: resourcemanager > Affects Versions: 2.4.0 > Reporter: Mayank Bansal > Fix For: 2.1.0-beta > > > Cluster Size = 16GB [2NM's] > Queue A Capacity = 50% > Queue B Capacity = 50% > Consider there are 3 applications running in Queue A which has taken the full > cluster capacity. > J1 = 2GB AM + 1GB * 4 Maps > J2 = 2GB AM + 1GB * 4 Maps > J3 = 2GB AM + 1GB * 2 Maps > Another Job J4 is submitted in Queue B [J4 needs a 2GB AM + 1GB * 2 Maps ]. > Currently in this scenario, Jobs J3 will get killed including its AM. > It is better if AM can be given least priority among multiple applications. > In this same scenario, map tasks from J3 and J2 can be preempted. > Later when cluster is free, maps can be allocated to these Jobs. -- This message was sent by Atlassian JIRA (v6.2#6252)