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https://issues.apache.org/jira/browse/FLINK-13641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16902787#comment-16902787
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Stephan Ewen commented on FLINK-13641:
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Can you explain a bit what would be the benefit of that?
> Consider removing UnknownInputChannel in NettyShuffleEnvironment
> ----------------------------------------------------------------
>
> Key: FLINK-13641
> URL: https://issues.apache.org/jira/browse/FLINK-13641
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: Andrey Zagrebin
> Priority: Minor
>
> UnknownInputChannel basically is a place holder while the producer is unknown
> which contains some partition parameters to use later for creation of the
> known channel.
> If NettyShuffleEnvironment#updatePartitionInfo provides enough information to
> add the known channel, one could consider removing UnknownInputChannel and
> refactoring indexed channel array into a dynamic list.
> Initially suggested in
> [https://github.com/apache/flink/pull/8362#discussion_r290308989]
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