[jira] [Updated] (KAFKA-19295) Remove AsyncKafkaConsumer event ID generation

["Kirk True (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-19295?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kirk True updated KAFKA-19295:
------------------------------
    Fix Version/s: 4.1.0

> Remove AsyncKafkaConsumer event ID generation
> ---------------------------------------------
>
>                 Key: KAFKA-19295
>                 URL: https://issues.apache.org/jira/browse/KAFKA-19295
>             Project: Kafka
>          Issue Type: Improvement
>          Components: clients, consumer
>            Reporter: Kirk True
>            Assignee: Kirk True
>            Priority: Major
>              Labels: consumer-threading-refactor, performance
>             Fix For: 4.1.0
>
>
> The AsyncKafkaConsumer uses a queue-based event mechanism to communicate between the application thread and the background network thread. Unique IDs were added to the events, mostly as a way to disambiguate different events in logs. However, in situations where many events are being created in a tight loop (e.g. polling in the consumer a few records at a time), there is an inordinate amount of CPU time spent achieving the randomness for the event IDs. Since there is no functional benefit to having IDs for events, and little likelihood of individual events being included in logs, ID generation should be removed.



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