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https://issues.apache.org/jira/browse/FLINK-10142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-10142:
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Labels: pull-request-available (was: )
> Reduce synchronization overhead for credit notifications
> --------------------------------------------------------
>
> Key: FLINK-10142
> URL: https://issues.apache.org/jira/browse/FLINK-10142
> Project: Flink
> Issue Type: Bug
> Components: Network
> Affects Versions: 1.5.2, 1.6.0, 1.7.0
> Reporter: Nico Kruber
> Assignee: Nico Kruber
> Priority: Major
> Labels: pull-request-available
>
> When credit-based flow control was introduced, we also added some checks and
> optimisations for uncommon code paths that make common code paths
> unnecessarily more expensive, e.g. checking whether a channel was released
> before forwarding a credit notification to Netty. Such checks would have to
> be confirmed by the Netty thread anyway and thus only add additional load for
> something that happens only once (per channel).
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