Tao Yang created YARN-6714:
------------------------------
Summary: RM crashed with IllegalStateException while handling
APP_ATTEMPT_REMOVED event when async-scheduling enabled in CapacityScheduler
Key: YARN-6714
URL: https://issues.apache.org/jira/browse/YARN-6714
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 3.0.0-alpha3, 2.9.0
Reporter: Tao Yang
Assignee: Tao Yang
Currently in async-scheduling mode of CapacityScheduler, after AM failover and
unreserve all reserved containers, it still have chance to get and commit the
outdated reserve proposal of the failed app attempt. This problem happened on
an app in our cluster, when this app stopped, it unreserved all reserved
containers and compared these appAttemptId with current appAttemptId, if not
match it will throw IllegalStateException and make RM crashed.
Error log:
{noformat}
2017-06-08 11:02:24,339 FATAL [ResourceManager Event Processor]
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in
handling event type APP_ATTEMPT_REMOVED to the scheduler
java.lang.IllegalStateException: Trying to unreserve for application
appattempt_1495188831758_0121_000002 when currently reserved for application
application_1495188831758_0121 on node host: node1:45454 #containers=2
available=... used=...
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerNode.unreserveResource(FiCaSchedulerNode.java:123)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.common.fica.FiCaSchedulerApp.unreserve(FiCaSchedulerApp.java:845)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.LeafQueue.completedContainer(LeafQueue.java:1787)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.completedContainerInternal(CapacityScheduler.java:1957)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.completedContainer(AbstractYarnScheduler.java:586)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.doneApplicationAttempt(CapacityScheduler.java:966)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:1740)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.handle(CapacityScheduler.java:152)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:822)
at java.lang.Thread.run(Thread.java:834)
{noformat}
When async-scheduling enabled, CapacityScheduler#doneApplicationAttempt and
CapacityScheduler#tryCommit both need to get write_lock before executing, so we
can check the app attempt state in commit process to avoid committing outdated
proposals.
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