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Jinhao Hu (`胡锦浩`)

Experience

MPI-SWS (Doctoral Researcher; Sept, 2024 ~ till now)

I am a first year PhD student at MPI-SWS under the supervision of Prof. Laurent Bindschaedler.

PingCAP – Storage Team (Database Engineer; Jul, 2022 ~ Sept, 2024)

Resource Control. Achieved isolation of multiple applications deployed on a shared cluster. Incorporated Quota Control Layer and Scheduling Control Layer for flow control and priority scheduling.
Microservices. Supporting depolying PD microservice mode, which splits the timestamp allocation and cluster scheduling functions of PD into the following two independently deployed microservices.
Test Improvement. Achieving a 3-6x speedup across different machine environments.
Support 10M regions simulation. Providing pd the same specification machine to deploy the real pd under the big cluster, simulate the request number of TiDB/TiKV + TiKV heartbeat heartbeat report + all kinds of scheduling for the region and so on.
Flashback Cluster. Developed a fast rollback feature to revert cluster data to a specific timestamp in cases of user errors. Based on Multi-version Concurrency Control (MVCC) to retrieve timestamped data and overwrite current data using the Two-phase Commit protocol (2PC).

ByteDance Inc. (Developer Intern; Mar, 2021 ~ Sept, 2021)

Release Platform Development. Contributed to the build of a Release Platform for the company's applications, including TikTok. Implemented a message queue with priority scheduling support to facilitate uploads to various stores, minimizing cross-platform operational overhead for users and refining status visualization.
RPC Service Construction: Used the KiteX service framework and the Thrift cross-language protocol to develop RPC services for the Lark application. Delivered RESTful interfaces encompassing: Package uploads, Publishing policies, User group management.

Programming Language: Golang, Rust, C&C++, Java and Python.
Tech Skills: Distributed Systems, Database Systems, Key-Value Storage, Cloud Computing, Kubernetes, etc.
Developing Tool: Experienced with Linux-based development and team collaboration tools, including Git.

Central South University - Computer Science (Bachelor; 2018 ~ 2022)