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https://issues.apache.org/jira/browse/HADOOP-18784?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17738279#comment-17738279
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Steve Loughran commented on HADOOP-18784:
-----------------------------------------
seen this myself now when I did a non-parallel test run. yes, looks like
filesystem recycling
> ITestS3AFileSystemStatistic failure on mvn verify
> -------------------------------------------------
>
> Key: HADOOP-18784
> URL: https://issues.apache.org/jira/browse/HADOOP-18784
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: test
> Reporter: Moditha Hewasinghage
> Priority: Minor
>
> But succeeds when running by itself. Most likely fs might be reused between
> tests and we count the fsStats.getBytesRead()
> ```
> [ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.393
> s <<< FAILURE! - in
> org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic
> [ERROR]
> testBytesReadWithStream(org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic)
> Time elapsed: 2.392 s <<< FAILURE!
> java.lang.AssertionError: Mismatch in number of FS bytes read by InputStreams
> expected:<2048> but was:<69944985>
> at org.junit.Assert.fail(Assert.java:89)
> at org.junit.Assert.failNotEquals(Assert.java:835)
> at org.junit.Assert.assertEquals(Assert.java:647)
> at
> org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic.testBytesReadWithStream(ITestS3AFileSystemStatistic.java:72)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)
> ```
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