套件： libspymemcached-java (2.12.3+dfsg-2)

simple, asynchronous, single-threaded memcached client

Spymemcached is a simple, asynchronous, single-threaded memcached client written in Java, featuring:

 *   Efficient storage of objects. General serializable objects are stored in
     their serialized form and optionally compressed if they meet criteria.
     Certain native objects are stored as tightly as possible (for example, a
     Date object generally consumes six bytes, and a Long can be anywhere from
     zero to eight bytes).

 *   Resilient to server and network outages. In many cases, a client
     operation can be replayed against a server if it goes away and comes
     back. In cases where it can't, it will communicate that as well. An
     exponential backoff reconnect algorithm is applied when a memcached
     becomes unavailable, but asynchronous operations will queue up for the
     server to be applied when it comes back online.

 *   Operations are asynchronous. It is possible to issue a store and continue
     processing without having to wait for that operation to finish. It is even
     possible to issue a get, do some further processing, check the result of
     the get and cancel it if it doesn't return fast enough.

 *   There is only one thread for all processing. Regardless of the number of
     requests, threads using the client, or servers to which the client is
     connected, only one thread will ever be allocated to a given
     MemcachedClient.

 *   Aggressively optimized. There are many optimizations that combine to
     provide high throughput.