Codisvsrediscluster: which cluster scheme should I choose?

Redis The slice cluster uses multiple instances to save data , It can well cope with the scenario of large amount of data . In Lesson 8 , We learned Redis The official slicing cluster scheme Redis Cluster, This lays the foundation for you to master slice cluster . today , I'll take you to the next level , Let's learn Redis Cluster Before the formal release of the scheme , Has been widely used in the industry Codis.

I'll explain it in detail Codis The key technology and implementation principle of , At the same time Codis and Redis Cluster Contrast , Help you choose the best cluster scheme .

Okay , Don't talk much , Let's study first Codis The overall structure and process of .

Codis The overall architecture and basic process of

Codis The cluster contains 4 Class key components .

• codis server： This is the result of secondary development Redis example , Additional data structures are added , Support data migration operations , It is mainly responsible for processing specific data read-write requests .
• codis proxy： Receive client requests , And forward the request to codis server.
• Zookeeper colony ： Save cluster metadata , For example, data location information and codis proxy Information .
• codis dashboard and codis fe： Together, it forms a cluster management tool . among ,codis dashboard Responsible for cluster management , Including the addition and deletion of codis server、codis proxy And data migration . and codis fe Be responsible for providing dashboard Of Web interface , So that we can go directly to Web Cluster management on the interface .

Let me use a picture to show Codis Cluster architecture and key components .

Let me give you a specific explanation Codis yes