Universal cloud-native microservice governance specification (微服务治理标准)

Apache ZooKeeper

A light-weight RPC implement of google protobuf RPC framework.

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

HouseMD is an awesome diagnosing tool better than BTrace

Java诊断工具

A Redis-backed storage engine for timelines