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https://issues.apache.org/jira/browse/FLINK-2448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14703405#comment-14703405
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ASF GitHub Bot commented on FLINK-2448:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1031#issuecomment-132704210
A call to clear cache files does not hurt, but let's fix the
MultipleProgramsTest base to produce fresh ExecutionEnvironments in its
factory, rather than repeatedly handing out the same one. That is a good fix
anyways.
> registerCacheFile fails with MultipleProgramsTestbase
> -----------------------------------------------------
>
> Key: FLINK-2448
> URL: https://issues.apache.org/jira/browse/FLINK-2448
> Project: Flink
> Issue Type: Bug
> Components: Tests
> Reporter: Chesnay Schepler
> Priority: Minor
>
> When trying to register a file using a constant name an expection is thrown
> saying the file was already cached.
> This is probably because the same environment is reused, and the cacheFile
> entries are not cleared between runs.
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