Distributed cache
In-memory distributed caching is a form of caching that allows the cache to span multiple servers so that it can grow in size and in transactional capacity. Distributed caching[1] has become feasible now for a number of reasons. First, memory has become very cheap, and you can stuff computers with many gigabytes at throwaway prices. Second, network cards have become very fast, with 1Gbit now standard everywhere and 10Gbit gaining traction. Finally, unlike a database server, which usually requires a high-end machine, distributed caching works well on lower cost machines (like those used for Web servers), which allows you to add more machines easily.[2]
Some distributed cache products are AppFabric Caching Service, NCache, Oracle Coherence , IBM WebSphere eXtreme Scale, Memcached and Ehcache.
See also
- Cache algorithms
- Cache coherence
- Cache-oblivious algorithm
- Cache stampede
- Cache language model
- Database cache
- Cache manifest in HTML5
Further reading
- "What Every Programmer Should Know About Memory" by Ulrich Drepper
- "Caching in the Distributed Environment"
References
- ^
Paul, S (2001-02-01). "Distributed caching with centralized control". Computer Communications. 24 (2): 256–268. doi:10.1016/S0140-3664(00)00322-4.
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Khan, Iqbal. "Distributed Caching On The Path To Scalability". MSDN. No. July 2009.
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