Kirk True created KAFKA-19296:
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Summary: Revise AsyncKafkaConsumer event wakeup approach
Key: KAFKA-19296
URL: https://issues.apache.org/jira/browse/KAFKA-19296
Project: Kafka
Issue Type: Improvement
Components: clients, consumer
Reporter: Kirk True
Assignee: Kirk True
Fix For: 4.1.0
The {{AsyncKafkaConsumer}} uses an event queue-based 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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