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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13993) transient
Date Mon, 16 Jan 2017 17:51:26 GMT
Steve Loughran created HADOOP-13993:
---------------------------------------

             Summary: transient
                 Key: HADOOP-13993
                 URL: https://issues.apache.org/jira/browse/HADOOP-13993
             Project: Hadoop Common
          Issue Type: Bug
          Components: fs/s3
    Affects Versions: 2.8.0
            Reporter: Steve Loughran
            Priority: Minor


logging for the sake of completeness; a transient failure of
{{ITestS3AInputStreamPerformance.testDecompressionSequential128K}} during a parallel test
run over long-haul links.

What I suspect happened is that some network failure triggered the connection being closed
and reopened. The test merely asserts that the number of opens == 1, ignoring the error count.
If this failure keeps happening, maybe that should be used as part of the assertions, asserting
that opencount - errorcount == 1. Though there, as the error count is used for more than just
read+reopen errors, it could maybe be unreliable


{code}
org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformancetestDecompressionSequential128K(org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance)
 Time elapsed: 24.583 sec  <<< FAILURE! java.lang.AssertionError: open operations
innull expected:<1> but was:<2>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:555)
	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.assertOpenOperationCount(ITestS3AInputStreamPerformance.java:188)
	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.assertStreamOpenedExactlyOnce(ITestS3AInputStreamPerformance.java:180)
	at org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance.testDecompressionSequential128K(ITestS3AInputStreamPerformance.java:283)
testRandomReadOverBuffer(org.apache.hadoop.fs.s3a.scale.ITestS3AInputStreamPerformance)  Time
elapsed: 7.428 sec  <<< FAILURE!
{code}



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