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https://issues.apache.org/jira/browse/FLINK-4910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann resolved FLINK-4910.
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Resolution: Fixed
Fixed via ba8ed263695d16eacb4bdfdf195dd22c83bb53ed
> Introduce safety net for closing file system streams
> ----------------------------------------------------
>
> Key: FLINK-4910
> URL: https://issues.apache.org/jira/browse/FLINK-4910
> Project: Flink
> Issue Type: Improvement
> Reporter: Stefan Richter
> Assignee: Stefan Richter
>
> Streams that are opened through {{FileSystem}} must be closed at the end of
> their life cycle. However, we found hints that some code forgets to close
> such streams.
> We should introduce i) a mechanism that closes leaking unclosed streams after
> usage and ii) provides logging that helps us to track down and fi the sources
> of such leaks.
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