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https://issues.apache.org/jira/browse/MAPREDUCE-3976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223320#comment-13223320
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Jason Lowe commented on MAPREDUCE-3976:
---------------------------------------
I manually ran the TestRMContainerAllocator tests, and they pass after applying
the patch. I also re-ran the metrics tests to verify the ResourceManager is
still reporting JVM metrics.
Not sure why Jenkins didn't catch this failure back on MAPREDUCE-3964.
Apparently it doesn't run these tests?
> TestRMContainerAllocator failing
> --------------------------------
>
> Key: MAPREDUCE-3976
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3976
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.2
> Reporter: Bikas Saha
> Assignee: Jason Lowe
> Attachments: MAPREDUCE-3976.patch
>
>
> The following stack trace is being generated
> ========
> org.apache.hadoop.metrics2.MetricsException: Metrics source JvmMetrics
> already exists!
> at
> org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:126)
> at
> org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:107)
> at
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:216)
> at
> org.apache.hadoop.metrics2.source.JvmMetrics.create(JvmMetrics.java:80)
> at
> org.apache.hadoop.mapreduce.v2.app.metrics.MRAppMetrics.create(MRAppMetrics.java:58)
> at
> org.apache.hadoop.mapreduce.v2.app.metrics.MRAppMetrics.create(MRAppMetrics.java:54)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.<init>(MRAppMaster.java:186)
> at
> org.apache.hadoop.mapreduce.v2.app.MRAppMaster.<init>(MRAppMaster.java:170)
> at org.apache.hadoop.mapreduce.v2.app.MRApp.<init>(MRApp.java:160)
> at
> org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator$1.<init>(TestRMContainerAllocator.java:372)
> at
> org.apache.hadoop.mapreduce.v2.app.TestRMContainerAllocator.testReportedAppProgress(TestRMContainerAllocator.java:371)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> ========
> This test fails when git trunk is reset to - commit
> 6689d99b38c7c562e8cae484207ad30ad7b56eb5
> but passes when git trunk is reset to - commit
> f429fdaf78a02211c4faee54b1ee92822edc5741
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