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Weiwei Yang commented on YARN-7494: ----------------------------------- Thanks [~jutia] for the comments. I agree current ResourceUsageMultiNodeLookupPolicy might be too naive. I had similar discussion before with [~sunilg] and [~Tao Yang]. We should partition sorted nodes by a range of scores, and in each range of score, we do a shuffle and let some random nodes within the same range score have the chance to be picked up by allocation thread. We need to continue to improve these policies. > Add muti-node lookup mechanism and pluggable nodes sorting policies to > optimize placement decision > -------------------------------------------------------------------------------------------------- > > Key: YARN-7494 > URL: https://issues.apache.org/jira/browse/YARN-7494 > Project: Hadoop YARN > Issue Type: Sub-task > Components: capacity scheduler > Reporter: Sunil Govindan > Assignee: Sunil Govindan > Priority: Major > Fix For: 3.2.0 > > Attachments: YARN-7494.001.patch, YARN-7494.002.patch, > YARN-7494.003.patch, YARN-7494.004.patch, YARN-7494.005.patch, > YARN-7494.006.patch, YARN-7494.007.patch, YARN-7494.008.patch, > YARN-7494.009.patch, YARN-7494.010.patch, YARN-7494.11.patch, > YARN-7494.12.patch, YARN-7494.13.patch, YARN-7494.14.patch, > YARN-7494.15.patch, YARN-7494.16.patch, YARN-7494.17.patch, > YARN-7494.18.patch, YARN-7494.19.patch, YARN-7494.20.patch, > YARN-7494.v0.patch, YARN-7494.v1.patch, multi-node-designProposal.png > > > Instead of single node, for effectiveness we can consider a multi node lookup > based on partition to start with. -- 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