def self.settings
[
:listen, :address, :port, :log, :query_log,
:query_log_format, :read_timeout, :client_timeout, :max_children,
:pid_file, :max_matches, :seamless_rotate, :preopen_indexes,
:unlink_old, :attr_flush_period, :ondisk_dict_default,
:max_packet_size, :mva_updates_pool, :crash_log_path, :max_filters,
:max_filter_values, :listen_backlog, :read_buffer, :read_unhinted,
:max_batch_queries, :subtree_docs_cache, :subtree_hits_cache,
:workers, :dist_threads, :binlog_path, :binlog_flush,
:binlog_max_log_size, :snippets_file_prefix, :collation_server,
:collation_libc_locale, :mysql_version_string,
:rt_flush_period, :thread_stack, :expansion_limit,
:compat_sphinxql_magics, :watchdog, :prefork_rotation_throttle,
:sphinxql_state, :ha_ping_interval, :ha_period_karma,
:persistent_connections_limit, :rt_merge_iops, :rt_merge_maxiosize,
:predicted_time_costs, :snippets_file_prefix, :shutdown_timeout,
:ondisk_attrs_default, :query_log_min_msec, :agent_connect_timeout,
:agent_query_timeout, :agent_retry_count, :agenty_retry_delay,
:client_key
]
end