v.24.2Improvement
Retry Handling for Disconnects and Expired Sessions in system.zookeeper Reads
Retry disconnects and expired sessions when readingsystem.zookeeper. This is helpful when reading many rows fromsystem.zookeepertable especially in the presence of fault-injected disconnects. #59388 (Alexander Gololobov).
Why it matters
This feature improves the reliability and stability of queries that read many rows from thesystem.zookeeper table, especially in environments experiencing fault-injected disconnects or session expirations. It helps to avoid query failures by transparently retrying these interruptions.How to use it
No special configuration is needed to enable this feature; it automatically applies when reading fromsystem.zookeeper, providing automatic retries on disconnects or expired sessions.