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https://issues.apache.org/jira/browse/KAFKA-6550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358293#comment-16358293
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ASF GitHub Bot commented on KAFKA-6550:
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huxihx opened a new pull request #4553: KAFKA-6550: UpdateMetadataRequest
should be lazily created
URL: https://github.com/apache/kafka/pull/4553
We should defer to construct UpdateMetadataRequest Builder to the right time
when we really need them.
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*Summary of testing strategy (including rationale)
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### Committer Checklist (excluded from commit message)
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> UpdateMetadataRequest should be lazily created
> ----------------------------------------------
>
> Key: KAFKA-6550
> URL: https://issues.apache.org/jira/browse/KAFKA-6550
> Project: Kafka
> Issue Type: Improvement
> Components: controller
> Affects Versions: 1.0.0
> Reporter: huxihx
> Assignee: huxihx
> Priority: Minor
>
> In ControllerBrokerRequestBatch.sendRequestsToBrokers, there is no need to
> eagerly construct the UpdateMetadataRequest.Builder since sometimes
> updateMetadataRequestBrokerSet is actually empty. In those cases, we should
> defer the construction to the time when we really need them.
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