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https://issues.apache.org/jira/browse/YARN-6150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16098007#comment-16098007
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Akira Ajisaka commented on YARN-6150:
-------------------------------------
In branch-2, the following error messages are shown many times:
{noformat}
2017-07-24 15:13:22,921 ERROR [Node Status Updater]
nodemanager.NodeStatusUpdaterImpl (NodeStatusUpdaterImpl.java:run(883)) -
Caught exception in status-updater
java.lang.IncompatibleClassChangeError: Found interface
org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse, but
class was expected
at
org.apache.hadoop.yarn.server.utils.YarnServerBuilderUtils.newNodeHeartbeatResponse(YarnServerBuilderUtils.java:56)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceTrackerService.nodeHeartbeat(ResourceTrackerService.java:539)
at
org.apache.hadoop.yarn.server.MiniYARNCluster$ShortCircuitedNodeManager$1$1.nodeHeartbeat(MiniYARNCluster.java:684)
at
org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl$1.run(NodeStatusUpdaterImpl.java:793)
at java.lang.Thread.run(Thread.java:745)
{noformat}
YARN-3732 changed NodeHeartbeatResponse from interface to abstract class, so
the error does not happen. I cherry-picked YARN-3732 to branch-2 locally and
the test passed.
> TestContainerManagerSecurity tests for Yarn Server are flakey
> -------------------------------------------------------------
>
> Key: YARN-6150
> URL: https://issues.apache.org/jira/browse/YARN-6150
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Daniel Sturman
> Assignee: Daniel Sturman
> Attachments: YARN-6150.001.patch, YARN-6150.002.patch,
> YARN-6150.003.patch, YARN-6150.004.patch, YARN-6150.005.patch,
> YARN-6150.006.patch, YARN-6150.007.patch
>
>
> Repeated runs of
> {{org.apache.hadoop.yarn.server.TestContainerManagedSecurity}} can either
> pass or fail on repeated runs on the same codebase. Also, the two runs (one
> in secure mode, one without security) aren't well labeled in JUnit.
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