@ahmedhegazee/nestjs-telescope/dist/telescope/core/services/memory-optimizer.service.d.ts

Advanced observability and monitoring solution for NestJS applications with ML-powered analytics, enterprise features, and production-ready scaling

import { OnModuleInit } from '@nestjs/common';
import { Observable } from 'rxjs';
import { TelescopeConfig } from '../interfaces/telescope-config.interface';
export interface MemoryConfig {
    enabled: boolean;
    monitoring: {
        enabled: boolean;
        interval: number;
        threshold: {
            heapUsed: number;
            heapTotal: number;
            external: number;
            rss: number;
        };
    };
    optimization: {
        autoGc: boolean;
        gcThreshold: number;
        leakDetection: boolean;
        memoryPooling: boolean;
        compression: boolean;
    };
    alerts: {
        enabled: boolean;
        criticalThreshold: number;
        warningThreshold: number;
    };
}
export interface MemoryMetrics {
    timestamp: Date;
    heapUsed: number;
    heapTotal: number;
    heapFree: number;
    external: number;
    rss: number;
    arrayBuffers: number;
    heapUsedPercentage: number;
    heapTotalPercentage: number;
    externalPercentage: number;
    rssPercentage: number;
    gc: {
        count: number;
        duration: number;
        type: string;
    };
}
export interface MemoryLeak {
    id: string;
    type: 'object' | 'array' | 'function' | 'closure' | 'event' | 'heap' | 'external';
    location: string;
    size: number;
    growth: number;
    firstDetected: Date;
    lastSeen: Date;
    severity: 'low' | 'medium' | 'high' | 'critical';
    status: 'active' | 'resolved' | 'investigating';
    stackTrace?: string;
}
export interface MemoryOptimization {
    type: 'gc' | 'compression' | 'cleanup' | 'pooling';
    timestamp: Date;
    duration: number;
    freedMemory: number;
    improvement: number;
    success: boolean;
    error?: string;
}
export interface MemoryHealth {
    status: 'healthy' | 'warning' | 'critical';
    score: number;
    issues: string[];
    recommendations: string[];
    metrics: MemoryMetrics;
}
export declare class MemoryOptimizerService implements OnModuleInit {
    private readonly telescopeConfig;
    private readonly logger;
    private readonly memoryHistory;
    private readonly memoryLeaks;
    private readonly optimizations;
    private readonly metricsSubject;
    private readonly healthSubject;
    private readonly leakSubject;
    private readonly optimizationSubject;
    private readonly config;
    private monitoringInterval;
    private optimizationInterval;
    private gcCount;
    private lastGcTime;
    constructor(telescopeConfig: TelescopeConfig);
    onModuleInit(): Promise<void>;
    private getDefaultMemoryConfig;
    private initializeOptimizer;
    private initializeMemoryPools;
    private initializeLeakDetection;
    private startMonitoring;
    private startOptimization;
    private setupGcMonitoring;
    private getCurrentMemoryMetrics;
    private getGcStats;
    private checkMemoryHealth;
    private calculateMemoryHealth;
    private calculateMemoryGrowthTrend;
    private checkMemoryAlerts;
    private detectMemoryLeaks;
    private analyzeMemoryGrowthPattern;
    private investigatePotentialLeak;
    private runOptimizationCycle;
    private shouldRunGc;
    private triggerGarbageCollection;
    private createMemoryPressure;
    private compressMemory;
    private performMemoryCompression;
    private cleanupMemoryPools;
    private performPoolCleanup;
    private resolveMemoryLeaks;
    private calculateLeakGrowthTrend;
    private formatBytes;
    getMemoryMetrics(): MemoryMetrics[];
    getCurrentMetrics(): MemoryMetrics;
    getMemoryLeaks(): MemoryLeak[];
    getOptimizations(): MemoryOptimization[];
    getMetricsUpdates(): Observable<MemoryMetrics>;
    getHealthUpdates(): Observable<MemoryHealth>;
    getLeakUpdates(): Observable<MemoryLeak>;
    getOptimizationUpdates(): Observable<MemoryOptimization>;
    forceGarbageCollection(): Promise<MemoryOptimization>;
    resolveLeak(leakId: string): Promise<boolean>;
    shutdown(): Promise<void>;
}