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https://issues.apache.org/jira/browse/FLINK-33316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17778510#comment-17778510
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Rui Fan commented on FLINK-33316:
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The change is subtle, so I push this commit directly.
Merged 1.17: 024fa4776d0246a283a70743f1ce3c04981daeb9
Merged 1.18: 0dd3b4ce9f0b9f193926445bf9c1f8579fa86161
> Avoid unnecessary heavy getStreamOperatorFactory
> ------------------------------------------------
>
> Key: FLINK-33316
> URL: https://issues.apache.org/jira/browse/FLINK-33316
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Configuration
> Affects Versions: 1.17.0, 1.18.0
> Reporter: Rui Fan
> Assignee: Rui Fan
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.19.0
>
>
> See FLINK-33315 for details.
> This Jira focus on avoid unnecessary heavy getStreamOperatorFactory, it can
> optimize the memory and cpu cost of Replica_2 in FLINK-33315.
> Solution: We can store the serializedUdfClassName at StreamConfig, and using
> the getStreamOperatorFactoryClassName instead of the heavy
> getStreamOperatorFactory in OperatorChain#getOperatorRecordsOutCounter.
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