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https://issues.apache.org/jira/browse/YARN-4519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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MENG DING reassigned YARN-4519:
-------------------------------
Assignee: MENG DING
> potential deadlock of CapacityScheduler between decrease container and assign
> containers
> ----------------------------------------------------------------------------------------
>
> Key: YARN-4519
> URL: https://issues.apache.org/jira/browse/YARN-4519
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacityscheduler
> Reporter: sandflee
> Assignee: MENG DING
>
> In CapacityScheduler.allocate() , first get FiCaSchedulerApp sync lock, and
> may be get CapacityScheduler's sync lock in decreaseContainer()
> In scheduler thread, first get CapacityScheduler's sync lock in
> allocateContainersToNode(), and may get FiCaSchedulerApp sync lock in
> FicaSchedulerApp.assignContainers().
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