cadonna commented on code in PR #15369:
URL: https://github.com/apache/kafka/pull/15369#discussion_r1496159485
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clients/src/main/java/org/apache/kafka/clients/consumer/internals/AsyncKafkaConsumer.java:
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@@ -708,14 +709,18 @@ public ConsumerRecords<K, V> poll(final Duration timeout)
{
wakeupTrigger.maybeTriggerWakeup();
updateAssignmentMetadataIfNeeded(timer);
- final Fetch<K, V> fetch = pollForFetches(timer);
- if (!fetch.isEmpty()) {
- if (fetch.records().isEmpty()) {
- log.trace("Returning empty records from `poll()` "
+ if (isGenerationKnown()) {
Review Comment:
The busy loop should not be too bad since the group metadata update event is
added to the queue when also the new assignment is set in the membership
manager.
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