feat(monitoring): improve network activity metrics with live domain request rates and backend identifiers

test/test.metricsmanager.route-keys.node.ts

@@ -18,6 +18,9 @@ function createProxyMetrics(args: {
   connectionsByRoute: Map<string, number>;
   throughputByRoute: Map<string, { in: number; out: number }>;
   domainRequestsByIP: Map<string, Map<string, number>>;
+  domainRequestRates?: Map<string, { perSecond: number; lastMinute: number }>;
+  backendMetrics?: Map<string, any>;
+  protocolCache?: any[];
   requestsTotal?: number;
 }) {
   return {
@@ -45,6 +48,7 @@ function createProxyMetrics(args: {
       perSecond: () => 0,
       perMinute: () => 0,
       total: () => args.requestsTotal || 0,
+      byDomain: () => args.domainRequestRates || new Map<string, { perSecond: number; lastMinute: number }>(),
     },
     totals: {
       bytesIn: () => 0,
@@ -52,10 +56,10 @@ function createProxyMetrics(args: {
       connections: () => 0,
     },
     backends: {
-      byBackend: () => new Map<string, any>(),
+      byBackend: () => args.backendMetrics || new Map<string, any>(),
       protocols: () => new Map<string, string>(),
       topByErrors: () => [],
-      detectedProtocols: () => [],
+      detectedProtocols: () => args.protocolCache || [],
     },
   };
 }
@@ -117,4 +121,122 @@ tap.test('MetricsManager joins domain activity to id-keyed route metrics', async
   expect(beta!.bytesOutPerSecond).toEqual(600);
 });
 
+tap.test('MetricsManager prefers live domain request rates for current activity', async () => {
+  const proxyMetrics = createProxyMetrics({
+    connectionsByRoute: new Map([
+      ['route-id-only', 10],
+    ]),
+    throughputByRoute: new Map([
+      ['route-id-only', { in: 1000, out: 1000 }],
+    ]),
+    domainRequestsByIP: new Map([
+      ['192.0.2.10', new Map([
+        ['alpha.example.com', 1000],
+        ['beta.example.com', 1],
+      ])],
+    ]),
+    domainRequestRates: new Map([
+      ['alpha.example.com', { perSecond: 0, lastMinute: 0 }],
+      ['beta.example.com', { perSecond: 5, lastMinute: 60 }],
+    ]),
+  });
+
+  const smartProxy = {
+    getMetrics: () => proxyMetrics,
+    routeManager: {
+      getRoutes: () => [
+        {
+          id: 'route-id-only',
+          match: {
+            ports: [443],
+            domains: ['alpha.example.com', 'beta.example.com'],
+          },
+          action: {
+            type: 'forward',
+            targets: [{ host: '127.0.0.1', port: 8443 }],
+          },
+        },
+      ],
+    },
+  };
+
+  const manager = new MetricsManager({ smartProxy } as any);
+  const stats = await manager.getNetworkStats();
+  const alpha = stats.domainActivity.find((item) => item.domain === 'alpha.example.com');
+  const beta = stats.domainActivity.find((item) => item.domain === 'beta.example.com');
+
+  expect(alpha!.activeConnections).toEqual(0);
+  expect(alpha!.requestsPerSecond).toEqual(0);
+  expect(beta!.activeConnections).toEqual(10);
+  expect(beta!.requestsPerSecond).toEqual(5);
+  expect(beta!.bytesInPerSecond).toEqual(1000);
+});
+
+tap.test('MetricsManager does not duplicate backend active counts onto protocol cache rows', async () => {
+  const proxyMetrics = createProxyMetrics({
+    connectionsByRoute: new Map(),
+    throughputByRoute: new Map(),
+    domainRequestsByIP: new Map(),
+    backendMetrics: new Map([
+      ['192.0.2.1:443', {
+        protocol: 'h2',
+        activeConnections: 257,
+        totalConnections: 1000,
+        connectErrors: 1,
+        handshakeErrors: 2,
+        requestErrors: 3,
+        avgConnectTimeMs: 4,
+        poolHitRate: 0.9,
+        h2Failures: 5,
+      }],
+    ]),
+    protocolCache: [
+      {
+        host: '192.0.2.1',
+        port: 443,
+        domain: 'alpha.example.com',
+        protocol: 'h2',
+        h2Suppressed: false,
+        h3Suppressed: false,
+        h2CooldownRemainingSecs: null,
+        h3CooldownRemainingSecs: null,
+        h2ConsecutiveFailures: null,
+        h3ConsecutiveFailures: null,
+        h3Port: null,
+        ageSecs: 1,
+      },
+      {
+        host: '192.0.2.1',
+        port: 443,
+        domain: 'beta.example.com',
+        protocol: 'h2',
+        h2Suppressed: false,
+        h3Suppressed: false,
+        h2CooldownRemainingSecs: null,
+        h3CooldownRemainingSecs: null,
+        h2ConsecutiveFailures: null,
+        h3ConsecutiveFailures: null,
+        h3Port: null,
+        ageSecs: 1,
+      },
+    ],
+  });
+
+  const smartProxy = {
+    getMetrics: () => proxyMetrics,
+    routeManager: {
+      getRoutes: () => [],
+    },
+  };
+
+  const manager = new MetricsManager({ smartProxy } as any);
+  const stats = await manager.getNetworkStats();
+  const aggregate = stats.backends.find((item) => item.id === 'backend:192.0.2.1:443');
+  const cacheRows = stats.backends.filter((item) => item.id?.startsWith('cache:'));
+
+  expect(aggregate!.activeConnections).toEqual(257);
+  expect(cacheRows.length).toEqual(2);
+  expect(cacheRows.every((item) => item.activeConnections === 0)).toBeTrue();
+});
+
 export default tap.start();