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https://issues.apache.org/jira/browse/MAPREDUCE-5598?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Kanter updated MAPREDUCE-5598:
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Status: Patch Available (was: Open)
> TestUserDefinedCounters.testMapReduceJob is flakey
> --------------------------------------------------
>
> Key: MAPREDUCE-5598
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5598
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: test
> Affects Versions: 2.2.0, trunk
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Attachments: MAPREDUCE-5598.patch
>
>
> {{TestUserDefinedCounters.testMapReduceJob}} is flakey.
> We sometimes see it fail:
> {noformat}
> junit.framework.AssertionFailedError
> at junit.framework.Assert.fail(Assert.java:48)
> at junit.framework.Assert.assertTrue(Assert.java:20)
> at junit.framework.Assert.assertTrue(Assert.java:27)
> at
> org.apache.hadoop.mapred.TestUserDefinedCounters.testMapReduceJob(TestUserDefinedCounters.java:113)
> {noformat}
> Upon investigation, the problem is that the input for the MR job in this test
> is at {{System.getProperty("test.build.data", "/tmp") + "/input"}}. If an
> earlier test wrote some files there, this test will use them as part of its
> input. This can cause all sorts of problems with this test because its not
> expecting the additional input data.
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