Implements geode/plans/2026-05-07-connection-scaling.md to push the
single-relay connection ceiling past the ~2k floor measured by
LoadBenchmark.connectionsHeldOpen.
- WebSocketSessionPump: switch outQueue to Channel.UNLIMITED bounded
by an AtomicInteger backlog cap. Idle connections no longer reserve
an 8 192-slot fixed buffer; lazy-allocated head segments cost only
a few hundred bytes per idle session. Slow-client policy preserved:
once outstanding > MAX_OUTGOING_BUFFER, the queue is closed and
the connection drops, so NIP-01 ordering is never silently
violated.
- LocalRelayServer / RelayConfig.NetworkSection: expose CIO
connectionGroupSize / workerGroupSize / callGroupSize so big-VM
operators can tune Ktor's event-loop pools without forking. Switch
to the serverConfig {} + configure {} embeddedServer overload so
CIO tunables can be set.
- LoadBenchmark: add connectionsHeldOpen10k (asserts 10 000 idle
WebSockets settle under a 1 GiB heap ceiling) and
connectionsHeldOpenWithFanout (5 000 subscribers, 10 EPS fan-out
for 10 s, reports p50/p99 last-fanout latency).
- config.example.toml: document the three CIO tunables and the
ulimit -n requirement for operators targeting >1k connections.
The relay implementation now stands as its own module. Fitting brand
for a Nostr relay shipped alongside the Quartz library — a geode is a
rock that holds quartz inside.
- Rename module directory quartz-relay/ -> geode/.
- Rename Gradle module path :quartz-relay -> :geode (settings.gradle).
- Rename Kotlin package com.vitorpamplona.quartz.relay -> com.vitorpamplona.geode.
- Rename application name + main class binding to match.
- Update the relay's NIP-11 advertised name to "geode" and the
software URL to /tree/main/geode. Test asserting the doc updated.
- Refresh comments / Main.kt usage line / config.example.toml header.
- Update consumers: quartz/build.gradle.kts dependency path, and
quartz NostrClient tests that import the in-process RelayHub.
Claude