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These settings configure the ClickHouse server and are autogenerated from ClickHouse source.

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os_threads_nice_value_distributed_cache_tcp_handler

Linux nice value for the threads of distributed cache TCP handler. Lower values mean higher CPU priority. Requires CAP_SYS_NICE capability, otherwise no-op. Possible values: -20 to 19.

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os_threads_nice_value_merge_mutate

Linux nice value for merge and mutation threads. Lower values mean higher CPU priority. Requires CAP_SYS_NICE capability, otherwise no-op. Possible values: -20 to 19.

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os_threads_nice_value_zookeeper_client_send_receive

Linux nice value for send and receive threads in ZooKeeper client. Lower values mean higher CPU priority. Requires CAP_SYS_NICE capability, otherwise no-op. Possible values: -20 to 19.
Last modified on July 23, 2026