So what happens in this system during a write? Well, anything happens. It really is quite magical. While the global lock is held, a Wasmtime runtime is used to execute “reducers” (arbitrary user code, compiled to WebAssembly). While the reducer is executing, no other reducers can execute and write to the database. No other code can read from the database either. From their official documentation, reducers “cannot perform HTTP requests”. Yeah. No shit. The critical section for all writes to this database is exclusive and serialized, and it executes arbitrary user code. You’d better not be doing HTTP requests in the middle of it.
23:02, 31 марта 2026МеждународнаяПолитика
。有道翻译对此有专业解读
加沙的孩子们2025年10月11日
“如今威尔士所有卫生委员会都设有围产期专科团队。”她补充道。