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https://issues.apache.org/jira/browse/KAFKA-7811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guozhang Wang resolved KAFKA-7811.
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Resolution: Fixed
Fix Version/s: 2.3.0
> Avoid unnecessary lock acquire when KafkaConsumer commits offsets
> -----------------------------------------------------------------
>
> Key: KAFKA-7811
> URL: https://issues.apache.org/jira/browse/KAFKA-7811
> Project: Kafka
> Issue Type: Improvement
> Components: clients
> Affects Versions: 0.10.2.2, 0.11.0.3, 1.0.2, 1.1.1, 2.0.1, 2.1.0
> Reporter: lambdaliu
> Assignee: lambdaliu
> Priority: Major
> Fix For: 2.3.0
>
>
> In KafkaConsumer#commitAsync that does not take offset parameters, we have
> the following logic:
> {code:java}
> public void commitAsync(OffsetCommitCallback callback) {
> acquireAndEnsureOpen();
> try {
> commitAsync(subscriptions.allConsumed(), callback);
> } finally {
> release();
> }
> }
> {code}
> This function calls another commitAsync with default all consumed offset
> which also call `acquireAndEnsureOpen`.
>
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