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https://issues.apache.org/jira/browse/FLINK-20721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253458#comment-17253458
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Zhu Zhu edited comment on FLINK-20721 at 12/22/20, 12:31 PM:
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cc [~trohrmann] [~pnowojski]
was (Author: zhuzh):
cc [~trohrmann][~pnowojski]
> Remove unknown input channels and process to update partitions
> --------------------------------------------------------------
>
> Key: FLINK-20721
> URL: https://issues.apache.org/jira/browse/FLINK-20721
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination, Runtime / Network
> Affects Versions: 1.13.0
> Reporter: Zhu Zhu
> Priority: Major
> Fix For: 1.13.0
>
>
> With the latest pipelined region scheduling, Flink no longer launch a task
> before knowing the locations of all the partitions it consumes.
> `scheduleOrUpdateConsumers` is no longer needed so we removed it in
> FLINK-20439.
> Unknown input channels and the process to update it is also no longer needed.
> I'd propose to remove them and the benefits are:
> 1. simplifying the code of both scheduler and shuffle components
> 2. simplifying interfaces of ShuffleEnvironment and ShuffleDescriptor
> 3. ensure the assumptions in InputGate#resumeConsumption() implementations
> 4. allow to remove ScheduleMode#allowLazyDeployment() and later completely
> remove ScheduleMode
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