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https://issues.apache.org/jira/browse/KAFKA-10684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson resolved KAFKA-10684.
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Resolution: Fixed
> Avoid additional copies in envelope path when transmitting over network
> ------------------------------------------------------------------------
>
> Key: KAFKA-10684
> URL: https://issues.apache.org/jira/browse/KAFKA-10684
> Project: Kafka
> Issue Type: Improvement
> Reporter: Jason Gustafson
> Assignee: Jason Gustafson
> Priority: Major
>
> When we send an envelope request or response, we first allocate a buffer for
> the embedded data. When we are ready to transmit the data, we allocate a new
> buffer for the full envelope and copy the embedded data to it. We can skip
> the second copy if we are a little smarter when translating the envelope data
> to the network `Send` object.
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