fix(database): Mongo live-update interventions (watch, token, tickets, recovery) - #1605
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kkopanidis merged 6 commits intoSep 13, 2026
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…ger) (#1604) * fix(router): harden event relays for HA and auth lifetime EventBus uses a single Redis message dispatcher with subscriberId maps, SIGTERM/SIGINT shutdown, and subscribe-after-ACK. Hermes installs engine middleware once, skips empty-room namespace broadcasts, demotes hot-path logs, and re-authenticates recovered /events/ subscriptions. EventRelayManager gains coalesced periodic reconcile, compiled templates, inbound caps, TTL-cached emit-time ReBAC, room eviction, backpressure, preview API, and metrics/docs aligned with the interventions plan. * fix(router): address #1604 re-review P1 and P2 follow-ups Recovery re-auth keeps per-user subscription state across disconnect; emit-time ReBAC distinguishes unavailable vs deny; EventBus drops process signal handlers and adds subscribeAck; manager subscribes only after Redis ACK and broadcasts evictRelayIds on refresh; Hermes backpressure uses local sockets without emit acks; cache is bounded; preview caps sample JSON; handshake matcher rejects ticket/sid/non-namespace paths; socket middleware rebind avoids duplicate registration on first sockets enable. * fix(hermes): restore production tsc for engine middleware chain Type the Socket.IO engine middleware runner as Express NextFunction so recursive callbacks match registerGlobalMiddleware. Use Logger.info for socket trace lines (IConduitLogger has no debug). * fix(router): import Express Response for socket global middleware _rebindSocketGlobalMiddlewares passes handlers typed with fetch Response because Response was not imported from express, failing tsc against Hermes registerSocketGlobalMiddleware. * fix(router): quit EventBus on module shutdown signals Stop event relays and call grpcSdk.bus.quit() from Router.shutdown(), registered on SIGTERM/SIGINT with process exit so Redis teardown is not left to SDK signal handlers. Tighten registerGlobalMiddleware typing and trim handshake helper comment (deslop). * fix(router): pass-3 recovery, scoped emit, and subscription hygiene Recovery re-auth keeps membership on Authorization UNAVAILABLE and only leaves on deny; re-check subscriptions for restored er: rooms via room map. Prune user subscriptions on disconnect when no other socket holds them. Scope relay emits to receivers in the target room; use Engine.IO writeBuffer/writable for backpressure. Drop hot-path Hermes socket info logs. * fix(router): pass-4 recovery map, backpressure, emit tests Store relay subs on socket.data; resolve recovered rooms from context and TTL room map without last-writer userId. Prune room map when unused on disconnect. Backpressure uses writeBuffer depth only. Add Hermes/router tests for room-scoped emit and queue metric. * fix(router): clear eventRelaySubs from socket.data on recovery deny * fix(router): clear socket.data subs on recovery fail-closed leave
Split validateEventRelayInput into per-field parsers to reduce complexity. Silence unused-parameter lint in EventBus test FakeRedis stub.
Keep Event Relays Hermes (engine.use, recovery, writeBuffer). Graft only port-keyed Socket.IO adapter isolation so Admin and Router do not double-deliver.
…, recovery) Rebase #1601 onto current Event Relays Hermes and close the stack-review P1s: watch $match/$project, serialized handleChange, persist resume token after successful emit, keep token on CursorKilled 237, hermes isSocketHandshake, restore /database/ Redis on recover, and shutdown the watch plus leader lock. Co-authored-by: Konstantinos Kopanidis <kkopanidis@users.noreply.github.com>
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Failed socketPush/bus no longer advances the resume token. ReBAC unavailable no longer removeUser. Auth middleware 401s a realtime ticket on POST /realtime/ticket. Drop/rename/invalidate reopen the watch.
kkopanidis
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September 13, 2026 14:00
kkopanidis
merged commit Sep 13, 2026
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feat/database-realtime-mongo
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This was referenced Sep 13, 2026
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Rebases #1601 onto current #1600 (
9e6356ef) and closes the Mongo stack-review P1s. Do not merge #1600 or #1601. Do not retarget tomain.Hermes graft
engine.use,executeRecovered(er:),writeBufferbackpressure.socket.io:${port}).initSockets.database:and fall back to arecoveredevent handler.Watch + token
$matchopted-in collections + insert/update/replace/delete; still deliver drop/rename/invalidate;$projectoutfullDocument/updateDescription/fullDocumentBeforeChange.handleChange. Persist_idfor skipped events immediately; persist opted-in tokens after successful bus + socket emit (at-least-once duplicates OK).resumeTokenfrom the publicchangepayload (Redis only).Tickets / recovery / ops
isSocketHandshake. Deleted the Core URL heuristic.POST /realtime/ticketwith a ticket is not a handshake.realtime:socket:*. Recover restores/database/Redis membership and re-auths.shutdown()closes the watch and releases the Redis leader lock (SIGTERM/SIGINT).rs0can break existing volumes; do not also relaydatabase:change:*if the same client is on/database/; live-tail, not backfill.Tests
sidis allowed$matchfollows opt-in/database/stays in the authorized listOut of scope