Brook Zhou created YARN-4677: -------------------------------- Summary: RMNodeResourceUpdateEvent update from scheduler can lead to race condition Key: YARN-4677 URL: https://issues.apache.org/jira/browse/YARN-4677 Project: Hadoop YARN Issue Type: Improvement Components: graceful, resourcemanager, scheduler Affects Versions: 2.7.1 Reporter: Brook Zhou
When a node is in decommissioning state, there is time window between completedContainer() and RMNodeResourceUpdateEvent get handled in scheduler.nodeUpdate (YARN-3223). So if a scheduling effort happens within this window, the new container could still get allocated on this node. Even worse case is if scheduling effort happen after RMNodeResourceUpdateEvent sent out but before it is propagated to SchedulerNode - then the total resource is lower than used resource and available resource is a negative value. -- This message was sent by Atlassian JIRA (v6.3.4#6332)