v.20.3Improvement
Display Zookeeper Exception for system.replicas in Separate Column
If zookeeper exception has happened while fetching data for system.replicas, display it in a separate column. This implements #9137 #9138 (alexey-milovidov)
Why it matters
This feature helps users identify and troubleshoot issues related to ZooKeeper communication errors by explicitly showing exceptions encountered while retrieving replica data, improving observability and debugging.How to use it
Query thesystem.replicas table as usual. If a ZooKeeper exception occurs during data fetching, it will appear in a new dedicated column alongside the replica information.