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, :collation_server,
:collation_libc_locale, :plugin_dir, :mysql_version_string,
:rt_flush_period, :thread_stack, :expansion_limit,
:compat_sphinxql_magics, :watchdog, :client_key
]
end