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https://issues.apache.org/jira/browse/FLINK-6659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16019905#comment-16019905
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Stephan Ewen commented on FLINK-6659:
-------------------------------------

Should we just drop the {{CommonTestUtils.createTempDirectory()}} method, to 
not encourage use of that pattern?

> RocksDBMergeIteratorTest, SavepointITCase leave temporary directories behind
> ----------------------------------------------------------------------------
>
>                 Key: FLINK-6659
>                 URL: https://issues.apache.org/jira/browse/FLINK-6659
>             Project: Flink
>          Issue Type: Bug
>          Components: Tests
>    Affects Versions: 1.2.0, 1.3.0, 1.2.1, 1.2.2
>            Reporter: Nico Kruber
>            Assignee: Nico Kruber
>
> {{RocksDBMergeIteratorTest}} uses a newly created temporary directory (via 
> {{CommonTestUtils.createTempDirectory()}}) for its RocksDB instance but does 
> not delete is when finished. We should better replace this pattern with a 
> proper {{@Rule}}-based approach



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