raftCache

一个用来学习raft协议的demo，使用raft协议来构建一个分布式缓存，项目参考了hraftd。

调试代码

leader 启动初始化节点node0

cd /cmd
go run main.go -id node0 node0

follower 加入多个follower node1 & node2

go run main.go -id node1 -haddr :11001 -raddr :12001 -join :11000 node1

go run main.go -id node2 -haddr :11002 -raddr :12002 -join :11000 node2

得到三个副本

├── test_dbnode0
│   ├── raft-log.db
│   ├── raft-stable.db
│   └── snapshots
├── test_dbnode1
│   ├── raft-log.db
│   ├── raft-stable.db
│   └── snapshots
└── test_dbnode2
    ├── raft-log.db
    ├── raft-stable.db
    └── snapshots

调试API

只能对leader节点发起写请求

POST 127.0.0.1:11000/v1/cache/key

{
    "value": "testNode0Value1"
}

DELETE 127.0.0.1:11000/v1/cache/key

可以最任意一个节点发起读请求

GET 127.0.0.1:11000/v1/cache/key 127.0.0.1:11001/v1/cache/key 127.0.0.1:11002/v1/cache/key

{
    "key": "key",
    "value": {
        "value": "testNode0Value1"
    }
}