Zian Chen created YARN-8178: ------------------------------- Summary: [Umbrella] Resource Over-commitment Based on Opportunistic Container Preemption Key: YARN-8178 URL: https://issues.apache.org/jira/browse/YARN-8178 Project: Hadoop YARN Issue Type: New Feature Components: capacity scheduler Reporter: Zian Chen
We want to provide an opportunistic container-based solution to achieve more aggressive preemption with shorter preemption monitoring interval. Instead of allowing applications to allocate resources with a mix of guaranteed and opportunistic containers, we allow newly submitted applications to only contain guaranteed containers. Meanwhile, we change the preemption logic to, instead of killing containers, demote guaranteed containers into opportunistic ones, so that when there are new applications submitted, we can ensure that these containers can be launched by preempting opportunistic containers. This approach is related to YARN-1011 but achieves ver-commitment in a different way, however, we rely on opportunistic container part implemented in YARN-1011 to make our design work well. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org