+ char prefix_key[MEMCACHED_PREFIX_KEY_MAX_SIZE];
+ size_t prefix_key_length;
+ memcached_hash hash_continuum;
+ uint32_t continuum_points_counter;
+ int32_t snd_timeout;
+ int32_t rcv_timeout;
+ uint32_t server_failure_limit;
+ uint32_t io_msg_watermark;
+ uint32_t io_bytes_watermark;