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Posted to jira@kafka.apache.org by "Justine Olshan (Jira)" <ji...@apache.org> on 2021/07/18 03:09:00 UTC
[jira] [Assigned] (KAFKA-13102) Topic IDs not propagated to
metadata cache quickly enough for Fetch path
[ https://issues.apache.org/jira/browse/KAFKA-13102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Justine Olshan reassigned KAFKA-13102:
--------------------------------------
Assignee: Justine Olshan
> 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
> Assignee: Justine Olshan
> Priority: Major
>
> 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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