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https://issues.apache.org/jira/browse/FLINK-5925?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15998526#comment-15998526
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Till Rohrmann commented on FLINK-5925:
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Not sure whether this was addressed by any commit so far.
> Clean up extracted RocksDB JNI library
> --------------------------------------
>
> Key: FLINK-5925
> URL: https://issues.apache.org/jira/browse/FLINK-5925
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0, 1.3.0
> Reporter: Till Rohrmann
>
> The {{RocksDBStateBackend}} extracts the RocksDB jni library from the RocksDB
> dependency in a temp directory (see
> {{RocksDBStateBackend#ensureRocksDBIsLoaded}}). This file is, however, never
> removed.
> In general, I think we should add a cleanup mechanism which cleans all
> {{Task}} specific files after the {{Task}} has completed. The same applies to
> the {{TaskManager}}.
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