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fix(sentinel): lock push dedupe decisions

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Guard Sentinel push hash checks and cache updates with a server-scoped atomic cache lock to prevent concurrent duplicate dispatches.
This commit is contained in:
Andras Bacsai
2026-05-26 14:12:56 +02:00
parent 7677fac2f5
commit b5be9fe9e8
2 changed files with 22 additions and 9 deletions
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app/Http/Controllers/Api/SentinelController.php
+12 -9
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@@ -117,19 +117,22 @@ class SentinelController extends Controller
$hash = $this->containerStateHash($data);
$hashKey = "sentinel:push-hash:{$server->id}";
$forceKey = "sentinel:push-force:{$server->id}";
$lockKey = "sentinel:push-lock:{$server->id}";
$cachedHash = Cache::get($hashKey);
$forceActive = Cache::has($forceKey);
return Cache::lock($lockKey, 10)->block(5, function () use ($hashKey, $forceKey, $hash): bool {
$cachedHash = Cache::get($hashKey);
$forceActive = Cache::has($forceKey);
$shouldDispatch = $cachedHash === null || $cachedHash !== $hash || ! $forceActive;
$shouldDispatch = $cachedHash === null || $cachedHash !== $hash || ! $forceActive;
if ($shouldDispatch) {
// Day-long TTL bounds memory if a server stops pushing entirely.
Cache::put($hashKey, $hash, now()->addDay());
Cache::put($forceKey, true, config('constants.sentinel.push_force_interval_seconds', 300));
}
if ($shouldDispatch) {
// Day-long TTL bounds memory if a server stops pushing entirely.
Cache::put($hashKey, $hash, now()->addDay());
Cache::put($forceKey, true, config('constants.sentinel.push_force_interval_seconds', 300));
}
return $shouldDispatch;
return $shouldDispatch;
});
}
/**