keeper_cluster.xml

<clickhouse>
  <listen_host>0.0.0.0</listen_host>
  <keeper_server>
    <tcp_port>9181</tcp_port>
    <server_id from_env="KEEPER_ID" />
    <log_storage_path>/var/lib/clickhouse/coordination/log</log_storage_path>
    <snapshot_storage_path>/var/lib/clickhouse/coordination/snapshots</snapshot_storage_path>
    <enable_reconfiguration>true</enable_reconfiguration>

    <coordination_settings>
      <operation_timeout_ms>10000</operation_timeout_ms>
      <session_timeout_ms>30000</session_timeout_ms>
      <raft_logs_level>trace</raft_logs_level>
    </coordination_settings>

    <raft_configuration>
      <server>
        <id>1</id>
        <hostname>zoo1</hostname>
        <port>9234</port>
      </server>
      <server>
        <id>2</id>
        <hostname>zoo2</hostname>
        <port>9234</port>
      </server>
      <server>
        <id>3</id>
        <hostname>zoo3</hostname>
        <port>9234</port>
      </server>
    </raft_configuration>
  </keeper_server>
</clickhouse>