Ray Chiang created YARN-5128:
--------------------------------
Summary: Investigate potential race condition in the scheuduler
nodeUpdate() method
Key: YARN-5128
URL: https://issues.apache.org/jira/browse/YARN-5128
Project: Hadoop YARN
Issue Type: Task
Reporter: Ray Chiang
This section of code exists in the various schedulers in the method
nodeUpdate():
{code}
// If the node is decommissioning, send an update to have the total
// resource equal to the used resource, so no available resource to
// schedule.
// TODO: Fix possible race-condition when request comes in before
// update is propagated
if (nm.getState() == NodeState.DECOMMISSIONING) {
this.rmContext
.getDispatcher()
.getEventHandler()
.handle(
new RMNodeResourceUpdateEvent(nm.getNodeID(), ResourceOption
.newInstance(getSchedulerNode(nm.getNodeID())
.getAllocatedResource(), 0)));
}
{code}
Investigate the TODO section.
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