A simple introduction to memcachedb

Protocol: New BSD license Author: stvchu, Gary. caokai, forever. sky81 Team: Sina interactiveCommunityBusiness Department-blog Product Web: http://code.google.com/p/memcachedb/ Memcachedb = memcache + Berkeley DB Memcachedb is a distributed persistent storage system that supports high concurrency. For any original memcached client, it is still a memcached, but its data can be stored persistently. Front-end: memcached Network Layer Backend: Berkeley dB Storage Write speed: the local server uses the memcache client (libmemcache) to set 0.2 billion 16-byte key records and 10-byte value records, which takes 16572 seconds, average speed: 12000 records/second. Read speed: Get 1 million 16-byte key records and 10-byte value records from the local server through the memcache client (libmemcache), which takes 103 seconds, average speed: 10000 records/second. • Supported memcache commands Get, set, add, replace Incr, decr Delete Stats Flush_all • Private commands Db_checkpoint, db_archive Db_ismaster, db_whoismaster (for replication) Compilation and installation methods: Http://blog.csdn.net/simonlsy/archive/2008/01/07/2027940.aspx