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https://issues.apache.org/jira/browse/FLINK-2449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14650416#comment-14650416
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Stephan Ewen commented on FLINK-2449:
-------------------------------------

Is that a use case for the distributed cache, to modify the files? Since there 
are so many distributed copies (and they are only temp files which get 
deleted), modifying the file has no use anyways.

Is that over-optimization for a corner case?

> DistCache doesn't work with JavaProgram Collection tests
> --------------------------------------------------------
>
>                 Key: FLINK-2449
>                 URL: https://issues.apache.org/jira/browse/FLINK-2449
>             Project: Flink
>          Issue Type: Bug
>          Components: Tests
>            Reporter: Chesnay Schepler
>            Assignee: Sachin Goel
>            Priority: Minor
>
> When attempting to retrieve a file during the Collection test in 
> JavaProgramTestBase you'll encounter an exception claiming the file was never 
> registered.



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