David Jacot created KAFKA-19274:
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Summary: Group Coordinator Shards are not unloaded when
__consumer_offsets topic is deleted
Key: KAFKA-19274
URL: https://issues.apache.org/jira/browse/KAFKA-19274
Project: Kafka
Issue Type: Bug
Affects Versions: 4.0.0
Reporter: David Jacot
Assignee: David Jacot
Group Coordinator Shards are not unloaded when __consumer_offsets topic is
deleted. The unloading is scheduled but it is ignored because the epoch is
equal to the current epoch:
{noformat}
[2025-05-13 08:46:00,883] INFO [GroupCoordinator id=1] Scheduling unloading of
metadata for __consumer_offsets-0 with epoch OptionalInt[0]
(org.apache.kafka.coordinator.common.runtime.CoordinatorRuntime)
[2025-05-13 08:46:00,883] INFO [GroupCoordinator id=1] Scheduling unloading of
metadata for __consumer_offsets-1 with epoch OptionalInt[0]
(org.apache.kafka.coordinator.common.runtime.CoordinatorRuntime)
[2025-05-13 08:46:00,883] INFO [GroupCoordinator id=1] Ignored unloading
metadata for __consumer_offsets-0 in epoch OptionalInt[0] since current epoch
is 0. (org.apache.kafka.coordinator.common.runtime.CoordinatorRuntime)
[2025-05-13 08:46:00,883] INFO [GroupCoordinator id=1] Ignored unloading
metadata for __consumer_offsets-1 in epoch OptionalInt[0] since current epoch
is 0. (org.apache.kafka.coordinator.common.runtime.CoordinatorRuntime){noformat}
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