Anubhav Dhoot created YARN-3675:
-----------------------------------
Summary: FairScheduler: RM quits when node removal races with
continousscheduling on the same node
Key: YARN-3675
URL: https://issues.apache.org/jira/browse/YARN-3675
Project: Hadoop YARN
Issue Type: Bug
Components: fairscheduler
Reporter: Anubhav Dhoot
Assignee: Anubhav Dhoot
With continuous scheduling, scheduling can be done on a node thats just removed
causing errors like below.
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12:28:53.782 AM FATAL
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager
Error in handling event type APP_ATTEMPT_REMOVED to the scheduler
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSAppAttempt.unreserve(FSAppAttempt.java:469)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.completedContainer(FairScheduler.java:815)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.removeApplicationAttempt(FairScheduler.java:763)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:1217)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:111)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:684)
at java.lang.Thread.run(Thread.java:745)
12:28:53.783 AM INFO
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager Exiting, bbye..
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