Distributed

http://www.linux-mag.com/cache/7744/1.html detailed article about CEPTH – [client] parts of Cepth were recently accepted into the mainline linux kernel

http://deim.urv.cat/~cpairot/dhts.html collection of links to notes and papers about DHT [Distributed Hash Tables] implementation and various related topics.

http://lwn.net/Articles/377391/ Article covers SCALE8x presentation from Ronald Minnich /Scandia Nat. Labs/ about issues involved running large scale networks [ >10M nodes ] . Article contains a lot of useful links, recommended reading.

http://3.rdrail.net/blog/memcached-based-message-queues/ Blog pots shows and explains how to implement simple queue system on top of memcached

http://wiki.secondlife.com/wiki/Message_Queue_Evaluation_Notes Second Life notes about Message Queue Systems

http://xph.us/software/beanstalkd/ seems to a rare thing: a message queue server, running as a native code

http://highscalability.com/yahoo-s-pnuts-database-too-hot-too-cold-or-just-right writeup on yahoo PTUNS (distributed database ). Also, see the original paper if you are interested.

http://www.metabrew.com/article/anti-rdbms-a-list-of-distributed-key-value-stores/ comparative review of different DHT scalable systems

http://www.gluster.org/docs/index.php/GlusterFS fully-distributed network file system (fully = no separate meta-data servers ). Supports data redundancy (data can be stripped/mirrored across several nodes), supposed to be high performance. supports encryption and can be embedded in app server (i.e. apache won’t need to go through the kernel for FS access )

http://highscalability.com/skype-plans-postgresql-scale-1-billion-users notes about how skype uses partitioning to scale database level,