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fix: debounce server cache invalidation (5s window), fix client cache stat reporting

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2026-03-20 02:15:18 +00:00
parent 832421f581
commit 441cd52608
3 changed files with 19 additions and 15 deletions
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public/app.js
+3 -2
View File
@@ -66,8 +66,9 @@ window.apiPerf = function() {
})).sort((a, b) => b.totalMs - a.totalMs);
console.table(rows);
const hitRate = _apiPerf.calls ? Math.round(_apiPerf.cacheHits / _apiPerf.calls * 100) : 0;
console.log(`Cache: ${_apiPerf.cacheHits} hits / ${_apiPerf.calls} calls (${hitRate}% hit rate)`);
return { calls: _apiPerf.calls, avgMs: Math.round(_apiPerf.totalMs / (_apiPerf.calls - _apiPerf.cacheHits || 1)), cacheHits: _apiPerf.cacheHits, hitRate: hitRate + '%', endpoints: rows };
const misses = _apiPerf.calls - _apiPerf.cacheHits;
console.log(`Cache: ${_apiPerf.cacheHits} hits / ${misses} misses (${hitRate}% hit rate)`);
return { calls: _apiPerf.calls, avgMs: Math.round(_apiPerf.totalMs / (misses || 1)), cacheHits: _apiPerf.cacheHits, cacheMisses: misses, cacheHitRate: hitRate, endpoints: rows };
};
function timeAgo(iso) {
public/index.html
+1 -1
View File
@@ -76,7 +76,7 @@
<main id="app" role="main"></main>
<script src="vendor/qrcode.js"></script>
<script src="app.js?v=1773972187"></script>
<script src="app.js?v=1773972918"></script>
<script src="home.js?v=1773972187"></script>
<script src="packets.js?v=1773972187"></script>
<script src="map.js?v=1773972187" onerror="console.error('Failed to load:', this.src)"></script>
server.js
+15 -12
View File
@@ -46,6 +46,19 @@ class TTLCache {
if (key.startsWith(prefix)) this.store.delete(key);
}
}
// Debounced invalidation — wait for burst of packets to settle
debouncedInvalidateAll() {
if (this._debounceTimer) return; // already scheduled
this._debounceTimer = setTimeout(() => {
this._debounceTimer = null;
this.invalidate('analytics:');
this.invalidate('channels');
this.invalidate('node:');
this.invalidate('health:');
this.invalidate('observers');
this.invalidate('bulk-health');
}, 5000); // batch invalidations over 5s window
}
clear() { this.store.clear(); }
get size() { return this.store.size; }
}
@@ -290,12 +303,7 @@ try {
// Invalidate caches on new data
cache.invalidate('analytics:');
cache.invalidate('channels');
cache.invalidate('node:');
cache.invalidate('health:');
cache.invalidate('observers');
cache.invalidate('bulk-health');
cache.debouncedInvalidateAll();
const broadcastData = { id: packetId, raw: msg.raw, decoded, snr: msg.SNR, rssi: msg.RSSI, hash: msg.hash, observer: observerId };
broadcast({ type: 'packet', data: broadcastData });
@@ -634,12 +642,7 @@ app.post('/api/packets', (req, res) => {
// Invalidate caches on new data
cache.invalidate('analytics:');
cache.invalidate('channels');
cache.invalidate('node:');
cache.invalidate('health:');
cache.invalidate('observers');
cache.invalidate('bulk-health');
cache.debouncedInvalidateAll();
broadcast({ type: 'packet', data: { id: packetId, decoded } });