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Surface router drops as failed status; bound relay pending subscriptions; jitter backoff

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MessageRouter outbox drops (attempt cap, TTL expiry in flush and
cleanup, per-peer overflow eviction) now invoke onMessageDropped, wired
to mark the message .failed in the ConversationStore - guarded so a
late failure never downgrades an already delivered/read status.

NostrRelayManager pending subscriptions gain a per-relay cap (64,
oldest-by-sequence eviction; durable intent still replays from
subscriptionRequestState) and a 10-minute age sweep on the existing
connect path. Reconnect backoff gets injectable +/-20% jitter so
recovering relays don't thundering-herd.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
jack
2026-06-11 15:05:44 +02:00
co-authored by Claude Fable 5
parent e74d9a7937
commit ed86ed1065
7 changed files with 405 additions and 17 deletions
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bitchat/Services/TransportConfig.swift
+8
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@@ -148,11 +148,19 @@ enum TransportConfig {
static let nostrRelayMaxBackoffSeconds: TimeInterval = 300.0
static let nostrRelayBackoffMultiplier: Double = 2.0
static let nostrRelayMaxReconnectAttempts: Int = 10
// Reconnect delays get ±20% random jitter so relays that dropped together
// (e.g. a network blip) don't thundering-herd the same reconnect instant.
static let nostrRelayBackoffJitterRatio: Double = 0.2
static let nostrRelayDefaultFetchLimit: Int = 100
// How many consecutive Tor-readiness waits (each bounded by TorManager's
// bootstrap deadline) to attempt before unblocking pending EOSE callers.
static let nostrTorReadyMaxWaitAttempts: Int = 3
static let nostrPendingSendQueueCap: Int = 200
// Pending (not-yet-flushed) REQs are bounded per relay: oldest-by-insertion
// eviction at the cap, plus an age sweep on connect attempts. Durable
// subscription intent survives in subscriptionRequestState either way.
static let nostrPendingSubscriptionsPerRelayCap: Int = 64
static let nostrPendingSubscriptionTTLSeconds: TimeInterval = 600.0
// Fallback deadline for treating a subscription's initial fetch as complete
// when a relay never sends EOSE (generous to cover Tor circuit setup).
static let nostrSubscriptionEOSEFallbackSeconds: TimeInterval = 10.0