MeshBay — read-only public mirror https://git.meshbay.org/meshbay.git/atom?h=0.15 2026-09-23T22:10:41Z 2026-09-23T22:10:41Z Christophe Besson cbesson@gmail.com 2026-09-23T22:10:41Z urn:sha1:059eb0318daf27d98bd1c9532705ff406c0a10f8 The other half of the 4G failure. The page negotiated every group twice: the sweep opened a connection, read the index and closed it, then the warm-up opened the same group again. The sweep, the warm-up and the tiles each had a concurrency ceiling of their own, and together they went past what the hub admits per account. Whatever the hub refused was then reported as "node unreachable" and remembered as down, which put that group last next time. - Every connection goes through ConnectionPool, which holds the page's one ceiling (six at once, sized for twenty groups on a phone) and keeps what the sweep opened for the tiles. A visit costs one offer per group. A refresh costs none for a connection that answers a four-second ping, and a connection that died while the phone slept is replaced, not waited on. - A connection whose index is being read is held against eviction. With more groups than the pool keeps, it was otherwise the least recently used one. - Negotiations still under way when the page closes close what they get, and a sweep cut short that way remembers nobody as down. - transport.js sends an offer again on 429, 502 or 503, honouring Retry-After, with jittered waits of about twenty seconds at worst. Search counts each retry as progress. A 404, 403 or 504 still fails at once, so a dead node costs no time. The fan-out tests assumed a ceiling of three and were re-measured: four dead groups of twelve now hold nothing back, even on a first visit. The pool and the retry run as shipped code, lifted as text, against a fake clock. Each guard was checked by removing it and seeing its test fail. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>