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https://issues.apache.org/jira/browse/HADOOP-18231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ahmar Suhail updated HADOOP-18231:
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    Summary: tests in ITestS3AInputStreamPerformance are failing   (was: 
ITestS3AInputStreamPerformance is failing )

> tests in ITestS3AInputStreamPerformance are failing 
> ----------------------------------------------------
>
>                 Key: HADOOP-18231
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18231
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Ahmar Suhail
>            Priority: Minor
>
> The following tests are failing when prefetching is enabled:
> testRandomIORandomPolicy - expects stream to be opened 4 times (once for 
> every random read), but prefetching will only open twice. 
> testDecompressionSequential128K - expects stream to be opened once, but 
> prefetching will open once for each block the file has. landsat file used in 
> the test has size 42MB, prefetching block size = 8MB, expected open count is 
> 6.
>  testReadWithNormalPolicy - same as above. 
> testRandomIONormalPolicy - executes random IO, but with a normal policy. 
> S3AInputStream will abort the stream and change the policy, prefetching 
> handles random IO by caching blocks so doesn't do any of that. 
> testRandomReadOverBuffer - multiple assertions failing here, also depends a 
> lot on readAhead values, not very relevant for prefetching



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