v.20.6Improvement

Added Replica Priority for Load Balancing

Official CH changelog text
Added replica priority for load_balancing (for manual prioritization of the load balancing). #11995 (Azat Khuzhin).
Added support for assigning a priority to replicas for load balancing in ClickHouse.

Why it matters

This feature allows manual prioritization of replicas during load balancing, enabling more control over query distribution across replicas and optimizing resource usage.

How to use it

Users can specify the priority of replicas by configuring the replica priority setting in ClickHouse, influencing the order in which replicas are selected for query execution during load balancing.

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