Redis 是一个高性能的key-value数据库。 redis的出现,很大程度补偿了memcached这类keyvalue存储的不足,在部 分场合可以对关系数据库起到很好的补充作用。它提供了Python,Ruby,Erlang,PHP客户端,使用很方便。
性能测试结果:
SET操作每秒钟 110000 次,GET操作每秒钟 81000 次,服务器配置如下:
Linux 2.6, Xeon X3320 2.5Ghz.
stackoverflow 网站使用 Redis 做为缓存服务器。
2012-03-30 发布2.4.10。上一个版本是2012-03-18的2.4.9 2.6应该快了。
完整改进记录:
UPGRADE URGENCY: High for users using replication with a DB identifier higher than 9, or chaining replication so that slaves are attached to other slaves. Low for all the other users.
* [FEATURE] Redis --test-meory improved with new test testing addressing.
* [BUGFIX] Fixed a memory leak: happens when replication is used with DB > 9.
* [BUGFIX] Fixed a replication bug that happens in chained replicaiton when a slave is attached to a master that is later turned into a slave. Now the chained slave reconnection
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