#go

2 notes

growing28 Jun 2026

Kafka partition assignment: Range, RoundRobin, and why joins care

RangeAssignor looks naive until you join two topics — then its alignment is the whole point. Choosing an assignment strategy is choosing what your consumers are allowed to assume.

2 min#kafka#distributed-systems#go

growing15 May 2026

Lock-free config reloads in Go with atomic.Pointer

When 100k RPS worth of goroutines read a lookup table that reloads every minute, RWMutex is the wrong tool. Build the new snapshot aside and swap one pointer.

2 min#go#concurrency#performance