Show HN: Pg-status – lightweight HTTP sidecar for PG master/replica discovery

github.com/krylosov-aa

3 points

krylosov-aa

9 days ago

pg-status polls your PostgreSQL hosts in the background and answers "who's the current master?", "which replica has lag ≤ 100ms?", "which replica has already replayed this LSN?" — all from memory, in under a millisecond. Written in C, ~9MB RAM.