吴雪莲
Distributed Storage Engineer Distribute Transaction Team Leader TiDB Global Support Expert at PingCAP
Sunnyvale, California, United States
Summary
🤩
Rockstar🎓
Top School吴雪莲 is a Distributed Storage Engineer and leader with 13 years of experience, currently leading the Distributed Transaction team at PingCAP from Sunnyvale. She is a core maintainer of TiKV and a committer to TiDB, contributing deep kernel-level expertise in Raft, distributed transactions, placement driver design, and performance tuning. Her open-source work includes significant contributions to tikv/client-go, kvproto and pd, and she co-authored research on TiDB’s Raft-based HTAP design, underscoring both practical and academic impact. She has a track record of building distributed testing and corner-case scenarios to harden system reliability at scale. Prior roles at NetEase, JD.com and SNDA focused on delivery and storage technologies, giving her broad experience across high-throughput production systems. Based in the Bay Area, she combines hands-on systems development with leadership in global support and community-driven OSS stewardship.
13 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer and Information Sciences, General, Bachelor's degree, Computer and Information Sciences, General at Ningbo Institute of Technology, Zhejiang University
Github Skills (26)
transaction10
key-value-store10
back-end-development10
protocol-buffers10
tidb10
databases10
distributed-systems10
tikv10
transactionscope10
go10
error-handling10
rust10
transaction-manager10
distributed-database10
relational-databases10
Programming languages (11)
Github contributions (5)
pingcap/kvproto
Dec 2016 - Jan 2021
Protocol buffer files for TiKV
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 reviews, 15 commits, 28 PRs in 4 years 1 month
Contributions summary:吴雪莲 contributed to the `kvproto` repository, which defines protocol buffer files for TiKV. Their commits focused on implementing and modifying protobuf messages, specifically related to error handling, and adding new commands like `CmdImportRequest` and support for Mvcc. The user's work involved creating and updating the protobuf definitions within the repository. Their contributions are essential for defining the communication protocols used by the TiKV distributed key-value store.
bufferprotocol-buffertikv
tikv/tikv
Dec 2016 - Apr 2020
Distributed transactional key-value database, originally created to complement TiDB
Role in this project:Back-end Developer
Back-end DeveloperContributions:15 releases, 69 reviews, 174 commits in 3 years 4 months
Contributions summary:吴雪莲's commits primarily involve debugging and feature implementation within the TiKV database system. They made changes to store-related modules, specifically addressing issues where store IDs or other conditions did not match. Furthermore, the user added metrics related to snapshot data (key-value count and size), and contributed to functionality by adding start_ts filters to the scan and mvcc operations, and implementing metrics for GC.
tidbtikvdatabasekey-value-databaseconsensus
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