Redis 4.0.7 发布，高性能 key-value 数据库

内容简介：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...

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。

Redis 4.0.7 解决了许多 bug ，并增加了一些非常有用的功能，包括：

• Many 32 bit overflows were addressed in order to allow to use Redis with a very significant amount of data, memory size permitting. 

• MEMORY USAGE fixed for the list type.

• Allow read-only scripts in Redis Cluster. 

• Fix AOF pipes setup in edge case. 

• AUTH option for MIGRATE. 

• HyperLogLogs are no longer converted from sparse to dense in order to be merged.

• Fix AOF rewrite dead loop under edge cases.

• Fix processing of large bulk strings (>= 2GB). 

• Added RM_UnlinkKey in modules API. 

• Fix Redis Cluster crashes when certain commands with a variable number of arguments are called in an improper way.

• Fix memory leak in lazyfree engine.

• Fix many potentially successful partial synchronizations that end doing a full SYNC, because of a bug destroying the replication backlog on the slave. So after a failover the slave was often not able to PSYNC with masters, and a full SYNC was triggered. The bug only happened after 1 hour of uptime so escaped the unit tests.

• Improve anti-affinity in master/slave allocation for Redis Cluster when the cluster is created. 

• Improve output buffer handling for slaves, by not limiting the amount of writes a slave could receive. 

更多详情请查看发行说明。

下载地址：

• https://redis.io/download

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