Xline is a geo-distributed KV store for metadata management, which is based on the Curp protocol.
Existing distributed KV stores mostly adopt the Raft consensus protocol, which takes two RTTs to complete a request. When deployed in a single data center, the latency between nodes is low, so it will not have a big impact on performance. However, when deployed across data centers, the latency between nodes may be tens or hundreds of milliseconds, at which point the Raft protocol will become a performance bottleneck. The Curp protocol is designed to solve this problem. It can reduce one RTT when commands do not conflict, thus improving performance.
- Etcd Compatible API
KvserviceWatchserviceAuthservice
- basic implementation of the
Curpprotocol - basic
Xlineclient (useCurpdirectly) - benchmark tool
In this release, we only provide binary files for X86_64 linux. Other platforms need to be compiled by yourself. we will add more support in the future.
- GitHub: https://github.com/datenlord/Xline
- Crate: https://crates.io/crates/xline
- Docs: https://docs.rs/xline
- Paper of Curp: https://www.usenix.org/system/files/nsdi19-park.pdf