About
Hi there! My name is Liangrun Da, and I’m a computer science master student at the Technical University of Munich (TUM). My research interests include distributed systems, formal verification, and programming languages.
I do various things:
- I’m currently working with Martin Kleppmann on conflict-free replicated data types (CRDT).
- I developed an easy-to-understand and formally verified implementation of Raft consensus algorithm named Raft Lite.
- I developed several distributed database systems, including LLRStore, a Dynamo-like KV database, and StorgataDB, a distributed RESP-compatible database using Raft.
- I developed a bitcask storage engine in Rust, a log-structured hash table for key-value storage, supporting compaction and crash recovery.
- I was a software engineer at Tencent in WeChat Group from 2021 to 2022.
Talks and Papers
- Liangrun Da and Martin Kleppmann. Extending JSON CRDTs with Move Operations. The 11th Workshop on Principles and Practice of Consistency for Distributed Data (PaPoC ’24), April 2024. [paper] [slides] [project page]
- Talk at Programming Local-first Software in SPLASH 2023: Extending Automerge: Undo, Redo, and Move, October 2023. [video]