[ https://issues.apache.org/jira/browse/YARN-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vinod Kumar Vavilapalli updated YARN-3487: ------------------------------------------ Fix Version/s: 2.6.1 Pulled this into 2.6.1. Ran compilation before the push. Patch applied cleanly. > CapacityScheduler scheduler lock obtained unnecessarily when calling getQueue > ----------------------------------------------------------------------------- > > Key: YARN-3487 > URL: https://issues.apache.org/jira/browse/YARN-3487 > Project: Hadoop YARN > Issue Type: Sub-task > Components: capacityscheduler > Affects Versions: 2.6.0 > Reporter: Jason Lowe > Assignee: Jason Lowe > Priority: Critical > Labels: 2.6.1-candidate > Fix For: 2.6.1, 2.7.1 > > Attachments: YARN-3487.001.patch, YARN-3487.002.patch, > YARN-3487.003.patch > > > Recently saw a significant slowdown of applications on a large cluster, and > we noticed there were a large number of blocked threads on the RM. Most of > the blocked threads were waiting for the CapacityScheduler lock while calling > getQueueInfo. -- This message was sent by Atlassian JIRA (v6.3.4#6332)