Simple-KV

Use raft-rs, grpc-rs to build a simple HA key-value service

• Provide basic get, set, delete, and scan operations √
• The data saved in one node must be persistent in the disk (restart can't lose data)
• Need to show - Kill minority node, the service can still work √
• Need to show - Kill majority node, the service can't work √
• Need to support add/remove node dynamically
• [Plus Point] Use a benchmark tool to find some performance problems.

System Architecture[Not implemented]

• WAL Method

  Apply log的时候先写日志，再定时刷盘

• Follower Read

  Client get从Follower读取数据

TIMELINE

TIME	TODO	CHECK
12.25	整体项目思考	√
12.26	学习rust和grpc-rs和raft-rs，编写grpc proto	√
12.27	编写client和server	√
12.28	编写client和server，编写WAL和Follower read
12.29	Leader & Do benchmark
12.30	Deadline

RUN

• git checkout v2
• cargo run --manifest-path Cargo.toml --bin server
• cargo run --manifest-path Cargo.toml --bin client

introduce

One Server with three raft backend. TODO: each raft backend has it's own server

one server per raft backend. TODO: persist raft node's data