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https://issues.apache.org/jira/browse/FLINK-1968?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen resolved FLINK-1968.
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Resolution: Fixed
Fixed via 1c8d866a83065e3d1bc9707dab81117f24c9f678
> 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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