mirror of https://github.com/apache/kafka.git
af012e1ec2
Consumers can subscribe to an RE2J SubscriptionPattern that will be resolved and maintained on the server-side (KIP-848). Currently, those regexes are refreshed on the coordinator when a consumer subscribes to a new regex, or if there is a new topic metadata image (to ensure regex resolution stays up-to-date with existing topics) But with [KAFKA-18813](https://issues.apache.org/jira/browse/KAFKA-18813), the topics matching a regex are filtered based on ACLs. This generates a new situation, as regexes resolution do not stay up-to-date as topics become visible (ACLs added/delete). This patch introduces time-based refresh for the subscribed regex by - Adding internal `group.consumer.regex.batch.refresh.max.interval.ms` config that controls the refresh interval. - Schedule a regex refresh when updating regex subscription if the latest refresh is older than the max interval. Reviewers: David Jacot <djacot@confluent.io> |
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