Eric Payne created YARN-7496: -------------------------------- Summary: CS Intra-queue preemption user-limit calculations are not in line with LeafQueue user-limit calculations Key: YARN-7496 URL: https://issues.apache.org/jira/browse/YARN-7496 Project: Hadoop YARN Issue Type: Bug Affects Versions: 2.8.2 Reporter: Eric Payne Assignee: Eric Payne
Only a problem in 2.8. Preemption could oscillate due to the difference in how user limit is calculated between 2.8 and later releases. Basically (ignoring ULF, MULP, and maybe others), the calculation for user limit on the Capacity Scheduler side in 2.8 is {{total used resources / number of active users}} while the calculation in later releases is {{total active resources / number of active users}}. When intra-queue preemption was backported to 2.8, it's calculations for user limit were more aligned with the latter algorithm, which is in 2.9 and later releases. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-dev-h...@hadoop.apache.org