You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "Ahmar Suhail (Jira)" <ji...@apache.org> on 2022/05/10 12:05:00 UTC

[jira] [Created] (HADOOP-18231) ITestS3AInputStreamPerformance is failing

Ahmar Suhail created HADOOP-18231:
-------------------------------------

             Summary: ITestS3AInputStreamPerformance is failing 
                 Key: HADOOP-18231
                 URL: https://issues.apache.org/jira/browse/HADOOP-18231
             Project: Hadoop Common
          Issue Type: Sub-task
            Reporter: Ahmar Suhail


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



--
This message was sent by Atlassian Jira
(v8.20.7#820007)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-dev-help@hadoop.apache.org