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https://issues.apache.org/jira/browse/FLINK-10662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhijiang updated FLINK-10662:
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Issue Type: Sub-task (was: Improvement)
Parent: FLINK-10745
> Refactor the ChannelSelector interface for single selected channel
> ------------------------------------------------------------------
>
> Key: FLINK-10662
> URL: https://issues.apache.org/jira/browse/FLINK-10662
> Project: Flink
> Issue Type: Sub-task
> Components: Network
> Affects Versions: 1.5.4, 1.6.1
> Reporter: zhijiang
> Assignee: zhijiang
> Priority: Minor
>
> In the discussion of broadcast improvement, [~pnowojski] pointed out the
> issue of improving the current channel selector.
>
> In {{ChannelSelector#selectChannels}}, it would return an array for selected
> channels. But considering specific implementations, only
> {{BroadcastPartitioner}} would select all the channels, and other
> implementations will select one channel. So we can simple this interface to
> return single channel index for benefiting performance, and specialize the
> {{BroadcastPartitioner}} in a more efficient way.
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