Tech:Prod7

prod7 is a server in London running Ubuntu 14.04 (Trusty).

Redis
We run the latest version of Redis from the Ubuntu repository. Redis is set up to handle cache, sessions and job queues for all wikis. The installation is password protected which is a major advantage of memcached which did not have the security provided by Redis.

NFS
We run an NFS (Network File System) server on this server. It exports two directories contained within,  and allow remote mounting from prod4 and prod8. The idea in future is possible to expand NFS to its own server and remotely host major directories such as  and   so data is more easily available to allow servers, we only need to maintain a single directory for things like private variables and code base remotely. This also provides the advantage of allowing us to run a possibly beefy server (nfs server) and have smaller nodes which only have 20GB available in a better way.