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https://issues.apache.org/jira/browse/HADOOP-15738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16609314#comment-16609314
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Jason Lowe commented on HADOOP-15738:
-------------------------------------
A "Fixed" resolution should only be used for cases where a patch has been
committed. Marking this as a duplicate of MAPREDUCE-7137. Note that in the
future JIRAs can be moved between projects rather than refiling them from
scratch. See the "Move" action under the "More" tab at the top of the JIRA.
> MRAppBenchmark.benchmark1() fails with NullPointerException
> -----------------------------------------------------------
>
> Key: HADOOP-15738
> URL: https://issues.apache.org/jira/browse/HADOOP-15738
> Project: Hadoop Common
> Issue Type: Bug
> Components: test
> Reporter: Oleksandr Shevchenko
> Priority: Minor
>
> MRAppBenchmark.benchmark1() fails with NullPointerException:
> 1. We do not set any queue for this test. As the result we got the following
> exception:
> {noformat}
> 2018-09-10 17:04:23,486 ERROR [Thread-0] rm.RMCommunicator
> (RMCommunicator.java:register(177)) - Exception while registering
> java.lang.NullPointerException
> at org.apache.avro.util.Utf8$2.toUtf8(Utf8.java:123)
> at org.apache.avro.util.Utf8.getBytesFor(Utf8.java:172)
> at org.apache.avro.util.Utf8.<init>(Utf8.java:39)
> at
> org.apache.hadoop.mapreduce.jobhistory.JobQueueChangeEvent.<init>(JobQueueChangeEvent.java:35)
> at
> org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.setQueueName(JobImpl.java:1167)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator.register(RMCommunicator.java:174)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator.serviceStart(RMCommunicator.java:122)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.serviceStart(RMContainerAllocator.java:280)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
> at
> org.apache.hadoop.service.CompositeService.serviceStart(CompositeService.java:121)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.serviceStart(MRAppMaster.java:1293)
> at org.apache.hadoop.service.AbstractService.start(AbstractService.java:194)
> at org.apache.hadoop.mapreduce.v2.app.MRApp.submit(MRApp.java:301)
> at org.apache.hadoop.mapreduce.v2.app.MRApp.submit(MRApp.java:285)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppBenchmark.run(MRAppBenchmark.java:72)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppBenchmark.benchmark1(MRAppBenchmark.java:194)
> {noformat}
> 2. We override createSchedulerProxy method and do not set application
> priority that was added later by MAPREDUCE-6515. We got the following error:
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.handleJobPriorityChange(RMContainerAllocator.java:1025)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.getResources(RMContainerAllocator.java:880)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.heartbeat(RMContainerAllocator.java:286)
> at
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator$AllocatorRunnable.run(RMCommunicator.java:280)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
> In both cases, the job never will be run and the test stuck and will not be
> finished.
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