From f639ecfac6687c9e8de4e3f305e168b2e4e1bb87 Mon Sep 17 00:00:00 2001
From: DanConwayDev <DanConwayDev@protonmail.com>
Date: Thu, 4 Dec 2025 17:58:31 +0000
Subject: feat(sync): Phase 3 - resilience and health tracking

- Add RelayHealthTracker with DashMap
- Implement exponential backoff (5s -> 1h max)
- Handle dead relays (24h failures -> daily retry)
- Add startup jitter to prevent thundering herd
- Add NGIT_SYNC_MAX_BACKOFF_SECS config
---
 src/config.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/config.rs')

diff --git a/src/config.rs b/src/config.rs
index a2a27be..441a14d 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -87,6 +87,10 @@ pub struct Config {
     /// URL of relay to sync kind 30617 events from (optional, enables proactive sync)
     #[arg(long, env = "NGIT_SYNC_RELAY_URL")]
     pub sync_relay_url: Option<String>,
+
+    /// Maximum backoff time in seconds for sync relay reconnection (default: 3600 = 1 hour)
+    #[arg(long, env = "NGIT_SYNC_MAX_BACKOFF_SECS", default_value_t = 3600)]
+    pub sync_max_backoff_secs: u64,
 }
 
 impl Config {
@@ -143,6 +147,7 @@ impl Config {
             metrics_connection_per_ip_abuse_threshold: 10,
             metrics_top_n_repos: 10,
             sync_relay_url: None,
+            sync_max_backoff_secs: 3600,
         }
     }
 }
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