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https://issues.apache.org/jira/browse/FLINK-1968?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14526631#comment-14526631
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ASF GitHub Bot commented on FLINK-1968:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/645#issuecomment-98705536
This Pull Request does, unfortunately, not build standalone, but
intermingles with #646
I just opened it to give an isolated view at what I proposed to change.
Merging this would require merging #646 as well. Sorry about that...
> Make Distributed Cache more robust
> ----------------------------------
>
> Key: FLINK-1968
> URL: https://issues.apache.org/jira/browse/FLINK-1968
> Project: Flink
> Issue Type: Bug
> Components: Local Runtime
> Affects Versions: 0.9
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.9
>
>
> The distributed cache has a variety of issues at the moment.
> - It does not give a proper exception when a non-cached file is accessed
> - It swallows I/O exceptions that happen during file transfer and later only
> returns null
> - It keeps inonsistently reference counts and attempts to copy often,
> resolving this via file collisions
> - Files are not properly removes on shutdown
> - No shutdown hook to remove files when process is killed
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