The Terracotta Server Array (TSA) provides the platform for Terracotta products and the backbone for Terracotta clusters.
It allows, for instance, to use Ehcache in a clustered mode, and benefit of a distributed in-memory cache.
It is available as open source, and you may want to contribute to it, or even just build it yourself (You can also get binaries on the Terracotta web site).
If you want to contribute to the OSS Terracotta server, here are a few pointers to get you started.
To read the full post from Aurelien Broszniowski, please click here