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These settings are available in system.settings and are autogenerated from source.

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cluster_for_parallel_replicas

Cluster for a shard in which current server is located Cloud default value: default.

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cluster_function_process_archive_on_multiple_nodes

If set to true, increases performance of processing archives in cluster functions. Should be set to false for compatibility and to avoid errors during upgrade to 25.7+ if using cluster functions with archives on earlier versions.

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cluster_function_wait_for_replica_ms

How long the initiator of a *Cluster table function or of parallel replicas over object storage waits for a replica to ask for tasks before giving the files assigned to that replica to other replicas. 0 disables the wait.