Are there any mature distributed caching solutions available for C++ besides memcached?

Question

Most interested in peer-to-peer solutions - without central server. So, I imagine it like a library that brings to my application a functionality of transparent cache management with feature of remote instances synchronization. It should support cache record timeout and forcing invalidation.

UPDATE: If not completely peer-to-peer - at least with multiple servers feature.

Answer 1

The next best thing after Memcached is Redis:

(+) it support more data types;

(+) has persistent storage;

(-) doesn't have 'real' C++ bindings (has 2 C client libs though).