Steve Loughran created HADOOP-18384:
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Summary: ITestS3AFileSystemStatistic failure in prefetch feature
branch
Key: HADOOP-18384
URL: https://issues.apache.org/jira/browse/HADOOP-18384
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3, test
Reporter: Steve Loughran
testing the rebased prefetch feature branch; got a failure in
ITestS3AFileSystemStatistic
{code}
tics.ITestS3AFileSystemStatistic
[ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 1.489 s
<<< FAILURE! - in
org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic
[ERROR]
testBytesReadWithStream(org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic)
Time elapsed: 1.489 s <<< FAILURE!
java.lang.AssertionError: Mismatch in number of FS bytes read by InputStreams
expected:<2048> but was:<69537130>
at
org.apache.hadoop.fs.s3a.statistics.ITestS3AFileSystemStatistic.testBytesReadWithStream(ITestS3AFileSystemStatistic.java:72)
{code}
that;s 64MB + ~237 kb, the kind of values you would get from prefetching
but, prefetch was disabled in this test run.
maybe its just the fs stats aren't being reset between test cases
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