Basic Info

Education

Master of Computer Architecture

Bachelor of Computer Sicence

Work Experience

Senior engineerMAY. 2021 - now

Senior engineerApr. 2018 - MAY. 2021

Projects

JAVA/CDC

• develop datastream job based on Flink CDC connectors, sync data from RDS to ADB
• add new tables to existing cdc job

Java/Cstore

• Performance Engineering the Cstore storage engine
• develop Z-order data layout to accelerate multi-dimention analysis

C++/InnoDB

• Use mmap for binlog
• In charge of purge procedure of the distributed transation (The whole team is developing SCN (system change number) feature)

C/C++

• Memory Allocator for Battery Backup Unit, learn some experience from Ceph's bluestore
• Integrate RDMA into underlining OSD, using the xnet library
• Implement a Flow Control module for OSD

Open Source Experience

• PRs contributed to flink-cdc-connectors
• Bug#101450 mysqlbinlog with start-position not show right FDE pos
• Bug#101448 when the input of net_length_size is 251, return 3
• HDFS-14925. Rename operation should check nest snapshot
• Port kong's ring-balancer to orange

Skills

• C/C++ > Java > Golang > Rust > Lua > Python
• Familiar with Epoll and Reactor Pattern
• Daily Used Tools: GDB, Perf&FlameGraph

Other

• Blog (in chinese): https://zhjwpku.com
• Paper Notes (in chinese): https://paper-notes.zhjwpku.com/