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https://issues.apache.org/jira/browse/FLINK-4960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15632401#comment-15632401
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ASF GitHub Bot commented on FLINK-4960:
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Github user kl0u commented on the issue:
https://github.com/apache/flink/pull/2747
R: @aljoscha
> Allow the AbstractStreamOperatorTestHarness to test scaling down
> ----------------------------------------------------------------
>
> Key: FLINK-4960
> URL: https://issues.apache.org/jira/browse/FLINK-4960
> Project: Flink
> Issue Type: New Feature
> Components: Tests
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Fix For: 1.2.0
>
>
> Currently the AbstractStreamOperatorTestHarness allows for testing an
> operator when scaling up, through snapshot and restore. This is not enough
> as many interesting corner cases arise when scaling down or during
> arbitrary combinations of scaling up and down.
> This issue targets to add this functionality so that an operator can snapshot
> its state, restore with different parallelism, and later scale down or
> further up.
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