Future improvements for Memcached/HotRod servers:

• Get rid of tuples, they're costly. This would require parameters/header objects to be made mutable.
• In Memcached, Get rid of any String construction and deal directly with byte[]. This would require converting adding validation to String-represented numbers, booleans...etc. This is by far biggest hotspot in our implementation.
• Get rid of any collection (ListBuffer) for parameter parsing in Memcached.