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https://issues.apache.org/jira/browse/FLINK-19855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224496#comment-17224496
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Arvid Heise commented on FLINK-19855:
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Merged into master as 6b5d4c0c795d50f8ff988b98c2800511b745ecdd .
> Incompatible semantics of channelIndex in UnionInputGate.resumeConsumption
> and its clients
> ------------------------------------------------------------------------------------------
>
> Key: FLINK-19855
> URL: https://issues.apache.org/jira/browse/FLINK-19855
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.12.0
> Reporter: Roman Khachatryan
> Assignee: Roman Khachatryan
> Priority: Minor
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> Given channelIndex only, UnionInputGate has to guess which wrapped input
> gate this channel belongs to. For that, UnionInputGate expects channel
> index with an inputGate offset. This contradicts with the contract of
> other resumeConsumption() implementations.
> UnionInputGate.resumeConsumption isn't used currently but is planned to
> be used in FLINK-19856.
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