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https://issues.apache.org/jira/browse/KAFKA-10673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Jacot resolved KAFKA-10673.
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Resolution: Fixed
> ConnectionQuotas should cache interbroker listener name
> -------------------------------------------------------
>
> Key: KAFKA-10673
> URL: https://issues.apache.org/jira/browse/KAFKA-10673
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 2.7.0
> Reporter: David Mao
> Assignee: David Mao
> Priority: Minor
> Fix For: 2.8.0
>
> Attachments: Screen Shot 2020-11-03 at 8.34.48 PM.png
>
>
> ConnectionQuotas.protectedListener calls config.interBrokerListenerName. This
> is a surprisingly expensive call that creates a copy of all properties set on
> the config. Given that this method is called multiple times per connection
> created, this is not really ideal.
>
> Profile attached showing allocations in protectedListener()
>
>
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