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Posted to issues@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2019/05/14 10:25:00 UTC
[jira] [Closed] (FLINK-12474) UnionInputGate should be notified
when closing SingleInputGate by canceler thread
[ https://issues.apache.org/jira/browse/FLINK-12474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zhijiang closed FLINK-12474.
----------------------------
Resolution: Invalid
> UnionInputGate should be notified when closing SingleInputGate by canceler thread
> ---------------------------------------------------------------------------------
>
> Key: FLINK-12474
> URL: https://issues.apache.org/jira/browse/FLINK-12474
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Reporter: zhijiang
> Priority: Minor
>
> If task is being canceled, the `SingleInputGate` would be closed by canceler thread. If the `SingleInputGate` is waiting for buffer, `inputChannelWithData` would be notified to wake task thread to exit early. But if the `UnionInputGate` is waiting for buffer, task thread is still stucking in wait when `SingleInputGate` is closed until cancel timeout.
> To make task exit early in this case, we could make `SingleInputGate` further notify `UnionInputGate` after it is closed, then it could also wake task thread to exit during canceling.
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