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From "sandflee (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-4519) potential deadlock of CapacityScheduler between decrease container and assign containers
Date Mon, 28 Dec 2015 03:51:49 GMT
sandflee created YARN-4519:
------------------------------

             Summary: 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


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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