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Posted to dev@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2018/10/24 08:28:00 UTC
[jira] [Created] (FLINK-10662) Refactor the ChannelSelector
interface for single selected channel
zhijiang created FLINK-10662:
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Summary: Refactor the ChannelSelector interface for single selected channel
Key: FLINK-10662
URL: https://issues.apache.org/jira/browse/FLINK-10662
Project: Flink
Issue Type: Improvement
Components: Network
Affects Versions: 1.6.1, 1.5.4
Reporter: zhijiang
Assignee: zhijiang
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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