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Posted to issues@flink.apache.org by "Flink Jira Bot (Jira)" <ji...@apache.org> on 2022/04/08 10:41:00 UTC
[jira] [Updated] (FLINK-19822) Remove redundant shuffle for streaming
[ https://issues.apache.org/jira/browse/FLINK-19822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Flink Jira Bot updated FLINK-19822:
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Labels: auto-deprioritized-major auto-unassigned pull-request-available stale-minor (was: auto-deprioritized-major auto-unassigned pull-request-available)
I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help the community manage its development. I see this issues has been marked as Minor but is unassigned and neither itself nor its Sub-Tasks have been updated for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is still Minor, please either assign yourself or give an update. Afterwards, please remove the label or in 7 days the issue will be deprioritized.
> Remove redundant shuffle for streaming
> --------------------------------------
>
> Key: FLINK-19822
> URL: https://issues.apache.org/jira/browse/FLINK-19822
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Reporter: godfrey he
> Priority: Minor
> Labels: auto-deprioritized-major, auto-unassigned, pull-request-available, stale-minor
>
> This is similar [FLINK-12575|https://issues.apache.org/jira/browse/FLINK-12575], we could implement {{satisfyTraits}} method for stream nodes to remove redundant shuffle. This could add more possibilities that more operators can be merged into multiple input operator.
> Different batch, stream operators require the shuffle keys and the state keys must be exactly the same, otherwise the state may be not correct.
> We only support a few operators in this issue, such as Join and regular Aggregate. Other operators will be supported in the future.
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