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https://issues.apache.org/jira/browse/HDFS-13481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16444096#comment-16444096
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Gabor Bota commented on HDFS-13481:
-----------------------------------
Patch tested: When the patch was applied, there were no failures in 4000 runs
of TestRollingFileSystemSinkWithHdfs.
> TestRollingFileSystemSinkWithHdfs#testFlushThread: test failed intermittently
> -----------------------------------------------------------------------------
>
> Key: HDFS-13481
> URL: https://issues.apache.org/jira/browse/HDFS-13481
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs
> Affects Versions: 3.0.1
> Reporter: Gabor Bota
> Assignee: Gabor Bota
> Priority: Major
> Attachments: HDFS-13481.001.patch
>
>
> The test fails very rarely on a laptop, but very commonly during Jenkins runs.
> {noformat}
> Error Message
> Flush thread did not run within 10 seconds
> Stacktrace
> java.lang.AssertionError: Flush thread did not run within 10 seconds
> at
> org.apache.hadoop.metrics2.sink.TestRollingFileSystemSinkWithHdfs.testFlushThread(TestRollingFileSystemSinkWithHdfs.java:291)
> {noformat}
> According to my test, this breaks about 0.3% locally.
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