v.22.1Improvement

Support in Cluster Configuration

Support <secure/> in cluster configuration, as an alternative form of <secure>1</secure>. Close #33270. #33330 (SuperDJY).
Support for the <secure/> self-closing tag in ClickHouse cluster configuration as an alternative to the <secure>1</secure> syntax.

Why it matters

To provide a more concise and clear way to specify secure connections in cluster configuration files, improving readability and simplifying configuration management.

How to use it

In the cluster configuration XML file, replace or use the self-closing tag <secure/> instead of the full form <secure>1</secure> to enable secure connections.