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https://issues.apache.org/jira/browse/FLINK-19026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arvid Heise updated FLINK-19026:
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Fix Version/s: 1.12.0
> Improve threading model of Unaligner
> ------------------------------------
>
> Key: FLINK-19026
> URL: https://issues.apache.org/jira/browse/FLINK-19026
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Network
> Affects Versions: 1.12.0
> Reporter: Arvid Heise
> Assignee: Arvid Heise
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
>
> Currently, netty threads and task thread are both accessing Unaligner. Netty
> thread access it indirectly through BufferReceivedListener. Thus, we need
> some costly synchronization and weaken the threading model of the Unaligner.
> One possibility would be to introduce priority buffers to the InputGates,
> which overtake other buffers and also are always processable (e.g. they
> bypass non-blocking outputs).
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