TiDB is an open-source, MySQL-compatible, distributed SQL database. Its architecture adopts a layered design. The storage layer is implemented in Rust, while the computing layer is implemented in Go. A distributed database like TiDB is a very complex project. Its performance depends on multiple factors, such as the operating system and the hardware platform it is running on, and the compiling language it uses.
In this article, I will share a peculiar Go bug that caused TiDB to crash on the Advanced RISC Machine (ARM) platform.