v.25.4Improvement
Support by system
Better permission support bysystem.kafka_consumers. Forward internallibrdkafkaerrors (worth noting that this library is a crap). #77700 (Ilya Golshtein).
Why it matters
To provide better security and transparency when working with Kafka consumers in ClickHouse by improving permission controls on thesystem.kafka_consumers system table and exposing detailed internal errors from the librdkafka library. This helps users diagnose Kafka integration issues more effectively and manage access rights more granularly.How to use it
Users benefit from improved permission controls automatically when queryingsystem.kafka_consumers. Internal librdkafka errors are now forwarded to ClickHouse's error logs without additional configuration, enabling easier troubleshooting of Kafka connection problems.