Lohit Vijayarenu created YARN-351: ------------------------------------- Summary: ResourceManager NPE during allocateNodeLocal Key: YARN-351 URL: https://issues.apache.org/jira/browse/YARN-351 Project: Hadoop YARN Issue Type: Bug Components: resourcemanager Affects Versions: 2.0.2-alpha Reporter: Lohit Vijayarenu Priority: Critical
ResourceManager seem to die due to NPE shown below on FairScheduler. This is easily reproduced on a cluster with multiple racks and nodes within each rack. Simple job with multiple tasks on each node triggers NPE in RM. Without understanding actual workings, I tried to do a null check which looked like it solved problem. But I am not sure if that is the right behavior yet. I feel this is serious enough to be marked as blocker, what do you guys think? {noformat} 2013-01-22 20:07:45,073 DEBUG org.apache.hadoop.yarn.server.resourcemanager.scheduler.AppSchedulingInfo: allocate: applicationId=application_1358885180585_0001 container=container_1358885180585_0001_01_000830 host=x.x.x.x:36186 2013-01-22 20:07:45,074 FATAL org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Error in handling event type NODE_UPDATE to the scheduler java.lang.NullPointerException at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AppSchedulingInfo.allocateNodeLocal(AppSchedulingInfo.java:259) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AppSchedulingInfo.allocate(AppSchedulingInfo.java:220) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSSchedulerApp.allocate(FSSchedulerApp.java:544) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:250) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AppSchedulable.assignContainer(AppSchedulable.java:318) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FSLeafQueue.assignContainer(FSLeafQueue.java:180) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.nodeUpdate(FairScheduler.java:796) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:859) at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.handle(FairScheduler.java:98) at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$SchedulerEventDispatcher$EventProcessor.run(ResourceManager.java:375) at java.lang.Thread.run(Thread.java:662) 2013-01-22 20:07:45,075 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Exiting, bbye.. {noformat} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira