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https://issues.apache.org/jira/browse/HADOOP-17018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17095604#comment-17095604
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Mehakmeet Singh commented on HADOOP-17018:
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# I think 404 is representing an assertion got failed, here. I tried failing 
some assertions and got 404, each time.
 # Successful runs don't have any 404s. There is a 404 at the beginning of a 
test and end of a test. I think that is due to setup and teardown as you said.
 # I will add these counters alongside Network statistics. But, in this case, I 
don't think a response(404) is the reason for failures, could be configurations 
or even setup related too as you said. 
This does become hard to reproduce, I'll look into that prefetch scenario and 
see if I can find the reason for the failures.

> Intermittent failing of ITestAbfsStreamStatistics in ABFS
> ---------------------------------------------------------
>
>                 Key: HADOOP-17018
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17018
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>    Affects Versions: 3.2.1
>            Reporter: Mehakmeet Singh
>            Assignee: Mehakmeet Singh
>            Priority: Major
>
> There are intermittent failures of a test inside ITestAbfsStreamStatistics in 
> ABFS.
> Did consecutive runs of the test and failure seemed random. Stack Trace in 
> the comments.
> Propose:
> - Change the assertion of the test for it to be passed, Since the production 
> code seems fine.



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