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In computing, a distributed cache is an extension of the traditional concept of cache used in a single locale. A distributed cache may span multiple servers so that it can grow in size and in transactional capacity. It is mainly used to store application data residing in database and web session data. The idea of distributed caching〔 〕 has become feasible now because main memory has become very cheap and network cards have become very fast, with 1 Gbit now standard everywhere and 10 Gbit gaining traction. Also, a distributed cache works well on lower cost machines usually employed for web servers as opposed to database servers which require expensive hardware.〔 〕 == Examples == * Aerospike * Couchbase * Ehcache * GigaSpaces * GridGain Systems * Hazelcast * Infinispan * Memcached * NCache * Oracle Coherence * Riak * Redis * SafePeak * Tarantool * Velocity/AppFabric 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「distributed cache」の詳細全文を読む スポンサード リンク
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