[jira] [Resolved] (KAFKA-15651) Investigate auto commit guarantees during Consumer.assign()

["Jun Rao (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-15651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jun Rao resolved KAFKA-15651.
-----------------------------
    Resolution: Not A Problem

> Investigate auto commit guarantees during Consumer.assign()
> -----------------------------------------------------------
>
>                 Key: KAFKA-15651
>                 URL: https://issues.apache.org/jira/browse/KAFKA-15651
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: clients, consumer
>            Reporter: Kirk True
>            Assignee: Kirk True
>            Priority: Major
>              Labels: consumer-threading-refactor, kip-848-preview
>
> In the {{assign()}} method implementation, both {{KafkaConsumer}} and {{PrototypeAsyncConsumer}} commit offsets asynchronously. Is this intentional? [~junrao] asks in a [recent PR review|https://github.com/apache/kafka/pull/14406/files/193af8230d0c61853d764cbbe29bca2fc6361af9#r1349023459]:
> {quote}Do we guarantee that the new owner of the unsubscribed partitions could pick up the latest committed offset?
> {quote}
> Let's confirm whether the asynchronous approach is acceptable and correct. If it is, great, let's enhance the documentation to briefly explain why. If it is not, let's correct the behavior if it's within the API semantic expectations.



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