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fix(metrics): improve metrics

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This commit is contained in:
Jürgen Kunz
2025-06-22 22:28:37 +00:00
parent de1269665a
commit 131a454b28
16 changed files with 1389 additions and 502 deletions
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31
ts/proxies/smart-proxy/timeout-manager.ts
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@@ -1,10 +1,11 @@
import type { IConnectionRecord, ISmartProxyOptions } from './models/interfaces.js';
import type { IConnectionRecord } from './models/interfaces.js';
import type { SmartProxy } from './smart-proxy.js';
/**
* Manages timeouts and inactivity tracking for connections
*/
export class TimeoutManager {
constructor(private settings: ISmartProxyOptions) {}
constructor(private smartProxy: SmartProxy) {}
/**
* Ensure timeout values don't exceed Node.js max safe integer
@@ -41,16 +42,16 @@ export class TimeoutManager {
* Calculate effective inactivity timeout based on connection type
*/
public getEffectiveInactivityTimeout(record: IConnectionRecord): number {
let effectiveTimeout = this.settings.inactivityTimeout || 14400000; // 4 hours default
let effectiveTimeout = this.smartProxy.settings.inactivityTimeout || 14400000; // 4 hours default
// For immortal keep-alive connections, use an extremely long timeout
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'immortal') {
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'immortal') {
return Number.MAX_SAFE_INTEGER;
}
// For extended keep-alive connections, apply multiplier
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'extended') {
const multiplier = this.settings.keepAliveInactivityMultiplier || 6;
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'extended') {
const multiplier = this.smartProxy.settings.keepAliveInactivityMultiplier || 6;
effectiveTimeout = effectiveTimeout * multiplier;
}
@@ -63,23 +64,23 @@ export class TimeoutManager {
public getEffectiveMaxLifetime(record: IConnectionRecord): number {
// Use route-specific timeout if available from the routeConfig
const baseTimeout = record.routeConfig?.action.advanced?.timeout ||
this.settings.maxConnectionLifetime ||
this.smartProxy.settings.maxConnectionLifetime ||
86400000; // 24 hours default
// For immortal keep-alive connections, use an extremely long lifetime
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'immortal') {
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'immortal') {
return Number.MAX_SAFE_INTEGER;
}
// For extended keep-alive connections, use the extended lifetime setting
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'extended') {
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'extended') {
return this.ensureSafeTimeout(
this.settings.extendedKeepAliveLifetime || 7 * 24 * 60 * 60 * 1000 // 7 days default
this.smartProxy.settings.extendedKeepAliveLifetime || 7 * 24 * 60 * 60 * 1000 // 7 days default
);
}
// Apply randomization if enabled
if (this.settings.enableRandomizedTimeouts) {
if (this.smartProxy.settings.enableRandomizedTimeouts) {
return this.randomizeTimeout(baseTimeout);
}
@@ -127,7 +128,7 @@ export class TimeoutManager {
effectiveTimeout: number;
} {
// Skip for connections with inactivity check disabled
if (this.settings.disableInactivityCheck) {
if (this.smartProxy.settings.disableInactivityCheck) {
return {
isInactive: false,
shouldWarn: false,
@@ -137,7 +138,7 @@ export class TimeoutManager {
}
// Skip for immortal keep-alive connections
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'immortal') {
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'immortal') {
return {
isInactive: false,
shouldWarn: false,
@@ -171,7 +172,7 @@ export class TimeoutManager {
*/
public applySocketTimeouts(record: IConnectionRecord): void {
// Skip for immortal keep-alive connections
if (record.hasKeepAlive && this.settings.keepAliveTreatment === 'immortal') {
if (record.hasKeepAlive && this.smartProxy.settings.keepAliveTreatment === 'immortal') {
// Disable timeouts completely for immortal connections
record.incoming.setTimeout(0);
if (record.outgoing) {
@@ -181,7 +182,7 @@ export class TimeoutManager {
}
// Apply normal timeouts
const timeout = this.ensureSafeTimeout(this.settings.socketTimeout || 3600000); // 1 hour default
const timeout = this.ensureSafeTimeout(this.smartProxy.settings.socketTimeout || 3600000); // 1 hour default
record.incoming.setTimeout(timeout);
if (record.outgoing) {
record.outgoing.setTimeout(timeout);