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https://issues.apache.org/jira/browse/MAPREDUCE-7136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleksandr Shevchenko updated MAPREDUCE-7136:
--------------------------------------------
Description:
TestMRAppMetrics should invoke shutdown method in DefaultMetricsSystem after
completion. Since it can lead to failing other tests. For example,
TestRMContainerAllocator#testReportedAppProgress fails when run after
TestMRAppMetrics#testNames with the following error:
{noformat}
org.apache.hadoop.metrics2.MetricsException: Metrics source MRAppMetrics
already exists!
{noformat}
!image-2018-09-10-14-39-57-992.png!
We do not catch this on the trunk since the test
TestRMContainerAllocator#testUnsupportedMapContainerRequirement run first and
"DefaultMetricsSystem.shutdown();" invokes after completion. But since JUnit
does not guarantee the order of the tests we should fix it.
Also, this is affected by previous versions which run testReportedAppProgress
first (I faced it on 2.7.0 version). And reproduced on the trunk.
was:
TestMRAppMetrics should invoke shutdown method in DefaultMetricsSystem after
completion. Since it can lead to failing other tests. For example,
TestRMContainerAllocator#testReportedAppProgress fails when run after
TestMRAppMetrics#testNames with the following error:
{noformat}
org.apache.hadoop.metrics2.MetricsException: Metrics source MRAppMetrics
already exists!
{noformat}
!image-2018-09-10-14-39-57-992.png!
We do not catch this on the trunk since the test
TestRMContainerAllocator#testUnsupportedMapContainerRequirement run first and
"DefaultMetricsSystem.shutdown();" invokes after completion. But since JUnit
does not guarantee the order of the tests we should fix it.
Also, this is affected by previous versions which run testReportedAppProgress
first (I faced it on 2.7.0 version).
> TestMRAppMetrics should shutdown DefaultMetricsSystem after completion
> ----------------------------------------------------------------------
>
> Key: MAPREDUCE-7136
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7136
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: test
> Reporter: Oleksandr Shevchenko
> Priority: Minor
> Attachments: MAPREDUCE-7136.001.patch,
> image-2018-09-10-14-39-57-992.png
>
>
> TestMRAppMetrics should invoke shutdown method in DefaultMetricsSystem after
> completion. Since it can lead to failing other tests. For example,
> TestRMContainerAllocator#testReportedAppProgress fails when run after
> TestMRAppMetrics#testNames with the following error:
> {noformat}
> org.apache.hadoop.metrics2.MetricsException: Metrics source MRAppMetrics
> already exists!
> {noformat}
> !image-2018-09-10-14-39-57-992.png!
> We do not catch this on the trunk since the test
> TestRMContainerAllocator#testUnsupportedMapContainerRequirement run first and
> "DefaultMetricsSystem.shutdown();" invokes after completion. But since JUnit
> does not guarantee the order of the tests we should fix it.
> Also, this is affected by previous versions which run
> testReportedAppProgress first (I faced it on 2.7.0 version). And reproduced
> on the trunk.
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