Multi-provider¶
Add multiple NNTP accounts under Settings → Usenet.
Routing¶
- Pool (default) — connections shared across enabled providers.
- Cascade — prefer providers in drag order; fail over down the list. Among providers that still have spare capacity, a thinly-spared primary (at most 25% of its pool free) can yield to an idle same-tier peer. Fully saturated providers are still skipped. Absolute pool width does not outrank configured priority while both providers are healthy.
Optional Re-probe primary after article miss (usenet.cascade.retry-primary-on-miss, default on) retries the primary once after a clean 430/451 before cascading — useful when providers route across spool nodes. Turn it off to go straight to backups after the first miss.
Each provider has type (pool / backup-only / disabled), SSL, connection limits, optional pipeline depth, and optional data caps (auto-pause near the limit).
Circuit breakers and storage groups¶
Failing providers are skipped temporarily. Storage group labels mark resellers that share the same upstream storage — after a clean article miss on one, siblings in the group are skipped for that request (connection errors never trigger this).
Across requests, a bounded TTL article-miss negative cache since 0.9.0 remembers definitive misses per provider or storage group so streaming retries are not spent re-probing known-missing articles. Tune TTL and max entries under Settings → Usenet → Global settings.
Only group providers that truly share storage and retention policy.