One 、Redis Acl

1、 summary

Redis Acl yes redis6 New permission control function ,redis5 Before the version, the security rules were controlled by password and by rename Control high-risk orders , such as flushdb keys* shutdown etc.

2、 command

1、acl cat View the add permission command

2、acl cat string View the available commands of the specified type

3、 Create a new user and set permissions related user commands

Two 、io Multithreading

Not at all redis Multi threading is supported redis Executing commands is still a single thread , Multithreading is specialized in processing network data, protocol parsing, and so on

The default is not on Need configuration

io-threads-do-reads yes

3、 ... and 、 Tool support

Old edition redis If you want to build a cluster, you need to install it separately ruby Environmental Science redis5 take redis-trilb.rb Integrated into redis-cli

Another official redis-benchmark Tool support cluster Pattern Through the way of multithreading, the pressure test is carried out for multiple pieces

Four 、 Other new features

1、RESP3, new redis Communication protocol , Optimize the communication between server and client

2、Client side caching Client cache , be based on RESP3 The client cache function of the protocol , To further improve cache performance , Data that customers but often access cache To client , Reduce TCP Network interaction

3、Proxy Cluster agent mode ：Proxy function , Give Way Cluster It has the same access method as a single real column , Reduce your use cluster Threshold , However, it should be noted that the agent does not change Cluster The functional limitations of , Commands that are not supported will not be supported , For example, cross slot More key operation

4、Modules API：redis6 Middle module API Great development progress , because redis Labs Responsible for developing functions , From the beginning redis modular ,redis You can program a framework , utilize modules To build different systems , Instead of writing from scratch and then BSD The license ,Redis At the beginning, it is a platform for developing various systems