Justine Olshan created KAFKA-13102:
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Summary: Topic IDs not propagated to metadata cache quickly enough
for Fetch path
Key: KAFKA-13102
URL: https://issues.apache.org/jira/browse/KAFKA-13102
Project: Kafka
Issue Type: Bug
Reporter: Justine Olshan
Currently, the fetch path for replicas relies on the topic IDs in the metadata
cache. However, the propagation of topic ID information is done through the
UpdateMetadata request and is too slow. This has resulted in increased
partitions in error, frequent closing of sessions and made tests like
ConsumerBounceTest#testCloseDuringRebalance extremely flaky.
A quick test with topic IDs stored in the replica manager during the handling
of LISR requests showed that significantly fewer errors and made
ConsumerBounceTest#testCloseDuringRebalance much less flaky (passing 50/50 runs
vs. 11/50 runs).
The task now is figuring out the best strategy to store topic IDs for the fetch
path using the IDs from the LISR request.
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