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drcache's Introduction

DRCache

distributed-gRPC-cache

Table of Contents


  • Background
  • Install

Background

构建分布式缓存系统,具体框架如下

  1. 数据缓存使用redis,对外提供统一API查询接口
  2. 数据先进行本级节点查询,查询不到去远程节点获取,并缓存到本地
  3. 主节点与其他节点间通信使用 gRPC 服务
  4. 防止转发请求过多 使用singleflight 降低从节点收到主节点请求频率
  5. 使用一致性hash算法确定 key 对应到的节点上,可以本地缓存获取不到可以通过一致性hash计算确定转发的远程节点
rpcpb builder
protoc --go_out=plugins=grpc:. rpcpb.proto

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