Some parameter limitations in memcached

One: Some parameter limits in the memcached
   Length of key: 250 bytes (binary protocol supports 65,536 bytes)
   The limit of value: 1M, is generally stored some text, such as news headlines and so on this value enough,
   Memory limit: 32-bit Max setting to 2G.
   If you have 30G of data to cache generally will be a single-column 30G (do not put eggs into a basket), it is generally recommended to open multiple instances (can be different machine or different ports on the same machine)
   Note: View memcached there are several running  

Some parameter limitations in memcached