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https://issues.apache.org/jira/browse/HADOOP-18531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17755627#comment-17755627
 ] 

Steve Loughran commented on HADOOP-18531:
-----------------------------------------

aaha, seen this again nearby


{code}
ITestS3APrefetchingInputStream

Tests run: 5, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 231.874 s <<< 
FAILURE! - in org.apache.hadoop.fs.s3a.ITestS3APrefetchingInputStream
[ERROR] 
testReadLargeFileFully(org.apache.hadoop.fs.s3a.ITestS3APrefetchingInputStream) 
 Time elapsed: 80.709 s  <<< FAILURE!
java.lang.AssertionError: 
[Maxiumum named action_executor_acquired.max] 
Expecting:
<0L>
to be greater than:
<0L> 
       at 
org.apache.hadoop.fs.s3a.ITestS3APrefetchingInputStream.testReadLargeFileFully(ITestS3APrefetchingInputStream.java:147)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
       at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke(Method.java:498)
       at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
       at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
       at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
       at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
       at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
       at 
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
       at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:61)
       at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:299)
       at 
org.junit.internal.runners.statements.FailOnTimeout$CallableStatement.call(FailOnTimeout.java:293)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.lang.Thread.run(Thread.java:750)


{code}

will fix in my unbuffer pr

> assertion failure in ITestS3APrefetchingInputStream
> ---------------------------------------------------
>
>                 Key: HADOOP-18531
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18531
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3, test
>    Affects Versions: 3.4.0
>            Reporter: Steve Loughran
>            Assignee: Ashutosh Gupta
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0, 3.3.6
>
>
> assert failure in 
> {{ITestS3APrefetchingInputStream.testReadLargeFileFullyLazySeek}}; looks like 
> the executor was acquired faster than the test expected.
> {code}
> java.lang.AssertionError: 
> [Maxiumum named action_executor_acquired.max] 
> Expecting:
>  <0L>
> to be greater than:
>  <0L> 
> {code}
> proposed: cut that assert as it doesn't seem needed



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