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https://issues.apache.org/jira/browse/FLINK-3980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15318624#comment-15318624
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ASF GitHub Bot commented on FLINK-3980:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/2064
> Remove ExecutionConfig.PARALLELISM_UNKNOWN
> ------------------------------------------
>
> Key: FLINK-3980
> URL: https://issues.apache.org/jira/browse/FLINK-3980
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.1.0
> Reporter: Greg Hogan
> Assignee: Greg Hogan
> Priority: Minor
> Fix For: 1.1.0
>
>
> FLINK-3589 added {{ExecutionConfig.PARALLELISM_DEFAULT}} and
> {{ExecutionConfig.PARALLELISM_UNKNOWN}}. The former gave a name to the
> contant {{-1}} and the latter was used as a default no-op when setting the
> parallelism.
> It's nice to keep these intents separate but given the current implementation
> of Operator parallelism users can get by using {{PARALLELISM_DEFAULT}}.
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