Wilfred Spiegelenburg created YARN-7689:
-------------------------------------------
Summary: TestRMContainerAllocator fails after YARN-6124
Key: YARN-7689
URL: https://issues.apache.org/jira/browse/YARN-7689
Project: Hadoop YARN
Issue Type: Bug
Components: scheduler
Affects Versions: 3.1.0
Reporter: Wilfred Spiegelenburg
Assignee: Wilfred Spiegelenburg
After the change that was made for YARN-6124 multiple tests in the
TestRMContainerAllocator from MapReduce fail with the following NPE:
{code}
java.lang.NullPointerException
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.reinitialize(AbstractYarnScheduler.java:1437)
at
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fifo.FifoScheduler.reinitialize(FifoScheduler.java:320)
at
org.apache.hadoop.mapreduce.v2.app.rm.TestRMContainerAllocator$ExcessReduceContainerAllocateScheduler.<init>(TestRMContainerAllocator.java:1808)
at
org.apache.hadoop.mapreduce.v2.app.rm.TestRMContainerAllocator$MyResourceManager2.createScheduler(TestRMContainerAllocator.java:970)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceInit(ResourceManager.java:659)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.createAndInitActiveServices(ResourceManager.java:1133)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:316)
at
org.apache.hadoop.yarn.server.resourcemanager.MockRM.serviceInit(MockRM.java:1334)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
at
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:162)
at
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:141)
at
org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:137)
at
org.apache.hadoop.mapreduce.v2.app.rm.TestRMContainerAllocator$MyResourceManager.<init>(TestRMContainerAllocator.java:928)
{code}
In the test we just call reinitiaize on a scheduler and never call init.
The stop of the service is guarded and so should the start and the re-init.
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