chore: update deps (#1285)

package.json

@@ -98,7 +98,7 @@
   },
   "dependencies": {
     "@achingbrain/nat-port-mapper": "^1.0.3",
-    "@libp2p/components": "^2.0.0",
+    "@libp2p/components": "^2.0.1",
     "@libp2p/connection": "^4.0.0",
     "@libp2p/crypto": "^1.0.0",
     "@libp2p/interface-address-manager": "^1.0.1",
@@ -106,7 +106,7 @@
     "@libp2p/interface-connection-encrypter": "^1.0.2",
     "@libp2p/interface-content-routing": "^1.0.1",
     "@libp2p/interface-dht": "^1.0.0",
-    "@libp2p/interface-metrics": "^1.0.2",
+    "@libp2p/interface-metrics": "^2.0.0",
     "@libp2p/interface-peer-discovery": "^1.0.0",
     "@libp2p/interface-peer-id": "^1.0.2",
     "@libp2p/interface-peer-info": "^1.0.1",
@@ -124,7 +124,7 @@
     "@libp2p/peer-id-factory": "^1.0.9",
     "@libp2p/peer-record": "^3.0.0",
     "@libp2p/peer-store": "^3.0.0",
-    "@libp2p/tracked-map": "^2.0.0",
+    "@libp2p/tracked-map": "^2.0.1",
     "@libp2p/utils": "^3.0.0",
     "@multiformats/mafmt": "^11.0.2",
     "@multiformats/multiaddr": "^10.1.8",
@@ -178,7 +178,7 @@
     "@libp2p/interface-mocks": "^3.0.1",
     "@libp2p/interop": "^2.0.0",
     "@libp2p/kad-dht": "^3.0.0",
-    "@libp2p/mdns": "^2.0.0",
+    "@libp2p/mdns": "^3.0.0",
     "@libp2p/mplex": "^4.0.0",
     "@libp2p/pubsub": "^3.0.1",
     "@libp2p/tcp": "^3.0.0",

src/connection-manager/index.ts

@@ -7,7 +7,6 @@ import retimer from 'retimer'
 import type { AbortOptions } from '@libp2p/interfaces'
 import { CustomEvent, EventEmitter } from '@libp2p/interfaces/events'
 import type { Startable } from '@libp2p/interfaces/startable'
-import { trackedMap } from '@libp2p/tracked-map'
 import { codes } from '../errors.js'
 import { isPeerId, PeerId } from '@libp2p/interface-peer-id'
 import { setMaxListeners } from 'events'
@@ -36,8 +35,8 @@ const defaultOptions: Partial<ConnectionManagerInit> = {
   movingAverageInterval: 60000
 }
 
+const METRICS_SYSTEM = 'libp2p'
 const METRICS_COMPONENT = 'connection-manager'
-const METRICS_PEER_CONNECTIONS = 'peer-connections'
 const STARTUP_RECONNECT_TIMEOUT = 60000
 
 export interface ConnectionManagerInit {
@@ -162,11 +161,7 @@ export class DefaultConnectionManager extends EventEmitter<ConnectionManagerEven
     /**
      * Map of connections per peer
      */
-    this.connections = trackedMap({
+    this.connections = new Map()
-      component: METRICS_COMPONENT,
-      metric: METRICS_PEER_CONNECTIONS,
-      metrics: this.components.getMetrics()
-    })
 
     this.started = false
     this._checkMetrics = this._checkMetrics.bind(this)
@@ -193,6 +188,94 @@ export class DefaultConnectionManager extends EventEmitter<ConnectionManagerEven
     this.components = components
 
     this.dialer.init(components)
+
+    // track inbound/outbound connections
+    this.components.getMetrics()?.updateComponentMetric({
+      system: METRICS_SYSTEM,
+      component: METRICS_COMPONENT,
+      metric: 'connections',
+      label: 'direction',
+      value: () => {
+        const metric = {
+          inbound: 0,
+          outbound: 0
+        }
+
+        for (const conns of this.connections.values()) {
+          for (const conn of conns) {
+            if (conn.stat.direction === 'inbound') {
+              metric.inbound++
+            } else {
+              metric.outbound++
+            }
+          }
+        }
+
+        return metric
+      }
+    })
+
+    // track total number of streams per protocol
+    this.components.getMetrics()?.updateComponentMetric({
+      system: METRICS_SYSTEM,
+      component: METRICS_COMPONENT,
+      metric: 'protocol-streams-total',
+      label: 'protocol',
+      value: () => {
+        const metric: Record<string, number> = {}
+
+        for (const conns of this.connections.values()) {
+          for (const conn of conns) {
+            for (const stream of conn.streams) {
+              const key = `${stream.stat.direction} ${stream.stat.protocol ?? 'unnegotiated'}`
+
+              metric[key] = (metric[key] ?? 0) + 1
+            }
+          }
+        }
+
+        return metric
+      }
+    })
+
+    // track 90th percentile of streams per protocol
+    this.components.getMetrics()?.updateComponentMetric({
+      system: METRICS_SYSTEM,
+      component: METRICS_COMPONENT,
+      metric: 'protocol-streams-per-connection-90th-percentile',
+      label: 'protocol',
+      value: () => {
+        const allStreams: Record<string, number[]> = {}
+
+        for (const conns of this.connections.values()) {
+          for (const conn of conns) {
+            const streams: Record<string, number> = {}
+
+            for (const stream of conn.streams) {
+              const key = `${stream.stat.direction} ${stream.stat.protocol ?? 'unnegotiated'}`
+
+              streams[key] = (streams[key] ?? 0) + 1
+            }
+
+            for (const [protocol, count] of Object.entries(streams)) {
+              allStreams[protocol] = allStreams[protocol] ?? []
+              allStreams[protocol].push(count)
+            }
+          }
+        }
+
+        const metric: Record<string, number> = {}
+
+        for (let [protocol, counts] of Object.entries(allStreams)) {
+          counts = counts.sort((a, b) => a - b)
+
+          const index = Math.floor(counts.length * 0.9)
+          metric[protocol] = counts[index]
+        }
+
+        return metric
+      }
+    })
   }
 
   isStarted () {

src/metrics/index.ts

@@ -3,7 +3,7 @@ import each from 'it-foreach'
 import LRU from 'hashlru'
 import { METRICS as defaultOptions } from '../constants.js'
 import { DefaultStats, StatsInit } from './stats.js'
-import type { ComponentMetricsUpdate, Metrics, Stats, TrackStreamOptions } from '@libp2p/interface-metrics'
+import type { ComponentMetricsUpdate, Metrics, Stats, TrackedMetric, TrackStreamOptions } from '@libp2p/interface-metrics'
 import type { PeerId } from '@libp2p/interface-peer-id'
 import type { Startable } from '@libp2p/interfaces/startable'
 import type { Duplex } from 'it-stream-types'
@@ -41,7 +41,7 @@ export class DefaultMetrics implements Metrics, Startable {
   private readonly protocolStats: Map<string, DefaultStats>
   private readonly oldPeers: ReturnType<typeof LRU>
   private running: boolean
-  private readonly systems: Map<string, Map<string, Map<string, number>>>
+  private readonly systems: Map<string, Map<string, Map<string, TrackedMetric>>>
   private readonly statsInit: StatsInit
 
   constructor (init: MetricsInit) {
@@ -115,7 +115,7 @@ export class DefaultMetrics implements Metrics, Startable {
   }
 
   updateComponentMetric (update: ComponentMetricsUpdate) {
-    const { system = 'libp2p', component, metric, value } = update
+    const { system = 'libp2p', component, metric, value, label, help } = update
 
     if (!this.systems.has(system)) {
       this.systems.set(system, new Map())
@@ -137,7 +137,11 @@ export class DefaultMetrics implements Metrics, Startable {
       throw new Error('Unknown metric component')
     }
 
-    componentMetrics.set(metric, value)
+    componentMetrics.set(metric, {
+      label,
+      help,
+      calculate: typeof value !== 'function' ? () => value : value
+    })
   }
 
   /**

test/metrics/index.spec.ts

@@ -296,6 +296,6 @@ describe('Metrics', () => {
 
     expect(metrics.getComponentMetrics()).to.have.lengthOf(1)
     expect(metrics.getComponentMetrics().get('libp2p')?.get(component)).to.have.lengthOf(1)
-    expect(metrics.getComponentMetrics().get('libp2p')?.get(component)?.get(metric)).to.equal(value)
+    expect(metrics.getComponentMetrics().get('libp2p')?.get(component)?.get(metric)?.calculate()).to.equal(value)
   })
 })