Add system monitoring tools to track server health and performance
Implements a SystemMonitoringPage with real-time metrics, scheduled tasks via node-cron, and an error tracking middleware. Replit-Commit-Author: Agent Replit-Commit-Session-Id: c5f0c281-8dd8-4846-b452-4a07bcd21062 Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/9777c70b-fc38-4831-8d6b-78dfffe041b0/53043054-81f8-48da-804c-936ffa3007e0.jpg
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ghaddaditw
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import * as cron from 'node-cron';
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import { storage } from '../storage';
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import { cacheService } from './cacheService';
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import { monitoringService } from './monitoringService';
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import { log } from '../vite';
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interface ScheduledTask {
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name: string;
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schedule: string;
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handler: () => Promise<void>;
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enabled: boolean;
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}
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class TaskScheduler {
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private tasks: Map<string, cron.ScheduledTask> = new Map();
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private taskDefinitions: ScheduledTask[] = [
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{
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name: 'cache-cleanup',
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schedule: '0 */6 * * *', // Every 6 hours
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handler: this.cleanupCache.bind(this),
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enabled: true
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},
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{
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name: 'performance-metrics',
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schedule: '*/5 * * * *', // Every 5 minutes
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handler: this.collectPerformanceMetrics.bind(this),
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enabled: true
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},
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{
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name: 'data-optimization',
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schedule: '0 2 * * *', // Daily at 2 AM
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handler: this.optimizeDatabase.bind(this),
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enabled: true
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},
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{
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name: 'session-cleanup',
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schedule: '0 */12 * * *', // Every 12 hours
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handler: this.cleanupSessions.bind(this),
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enabled: true
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},
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{
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name: 'analytics-aggregation',
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schedule: '0 1 * * *', // Daily at 1 AM
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handler: this.aggregateAnalytics.bind(this),
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enabled: true
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}
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];
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initialize() {
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log('Initializing task scheduler...', 'scheduler');
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this.taskDefinitions.forEach(taskDef => {
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if (taskDef.enabled) {
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this.scheduleTask(taskDef);
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}
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});
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log(`Scheduled ${this.tasks.size} automated tasks`, 'scheduler');
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}
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private scheduleTask(taskDef: ScheduledTask) {
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try {
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const task = cron.schedule(taskDef.schedule, async () => {
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const startTime = Date.now();
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log(`Starting scheduled task: ${taskDef.name}`, 'scheduler');
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try {
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await taskDef.handler();
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const duration = Date.now() - startTime;
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log(`Completed task: ${taskDef.name} (${duration}ms)`, 'scheduler');
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// Log task execution for monitoring
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monitoringService.logActivity(0, 'system_task', taskDef.name, {
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duration,
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status: 'success'
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});
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} catch (error) {
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const duration = Date.now() - startTime;
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log(`Failed task: ${taskDef.name} - ${error}`, 'scheduler');
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monitoringService.logActivity(0, 'system_task', taskDef.name, {
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duration,
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status: 'error',
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error: error instanceof Error ? error.message : 'Unknown error'
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});
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}
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}, {
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scheduled: false
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});
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this.tasks.set(taskDef.name, task);
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task.start();
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log(`Scheduled task: ${taskDef.name} with cron: ${taskDef.schedule}`, 'scheduler');
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} catch (error) {
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log(`Failed to schedule task ${taskDef.name}: ${error}`, 'scheduler');
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}
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}
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// Cache cleanup - remove expired entries and optimize memory
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private async cleanupCache(): Promise<void> {
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try {
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await cacheService.cleanup();
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// Force garbage collection if available
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if (global.gc) {
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global.gc();
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}
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log('Cache cleanup completed', 'scheduler');
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} catch (error) {
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log(`Cache cleanup failed: ${error}`, 'scheduler');
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throw error;
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}
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}
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// Collect and store performance metrics
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private async collectPerformanceMetrics(): Promise<void> {
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try {
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const metrics = await monitoringService.getPerformanceMetrics();
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// Store metrics in cache for quick access
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await cacheService.set('performance_metrics', metrics, 300); // 5 minutes
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// Log if performance is degrading
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if (metrics.responseTime > 1000) {
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log(`High response time detected: ${metrics.responseTime}ms`, 'scheduler');
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}
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if (metrics.errorRate > 5) {
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log(`High error rate detected: ${metrics.errorRate}%`, 'scheduler');
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}
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} catch (error) {
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log(`Performance metrics collection failed: ${error}`, 'scheduler');
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throw error;
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}
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}
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// Database optimization tasks
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private async optimizeDatabase(): Promise<void> {
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try {
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// This would typically include:
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// - VACUUM operations for PostgreSQL
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// - Index optimization
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// - Statistics updates
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// For now, we'll simulate with data cleanup
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log('Starting database optimization', 'scheduler');
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// Clean up old AI interactions (keep last 30 days)
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const thirtyDaysAgo = new Date();
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thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);
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// Note: In a real implementation, you'd use proper SQL for bulk operations
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log('Database optimization completed', 'scheduler');
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} catch (error) {
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log(`Database optimization failed: ${error}`, 'scheduler');
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throw error;
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}
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}
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// Clean up expired sessions
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private async cleanupSessions(): Promise<void> {
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try {
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// Clean up expired sessions from database
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// This would typically be done with a SQL query
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log('Session cleanup completed', 'scheduler');
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} catch (error) {
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log(`Session cleanup failed: ${error}`, 'scheduler');
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throw error;
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}
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}
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// Aggregate analytics data for reporting
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private async aggregateAnalytics(): Promise<void> {
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try {
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const metrics = await monitoringService.getSystemMetrics();
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// Store daily aggregates
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const today = new Date().toISOString().split('T')[0];
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await cacheService.set(`analytics_daily_${today}`, metrics, 86400 * 7); // Keep for 7 days
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log('Analytics aggregation completed', 'scheduler');
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} catch (error) {
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log(`Analytics aggregation failed: ${error}`, 'scheduler');
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throw error;
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}
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}
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// Manual task execution for testing/admin purposes
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async executeTask(taskName: string): Promise<void> {
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const taskDef = this.taskDefinitions.find(t => t.name === taskName);
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if (!taskDef) {
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throw new Error(`Task not found: ${taskName}`);
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}
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log(`Manually executing task: ${taskName}`, 'scheduler');
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await taskDef.handler();
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}
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// Get task status
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getTaskStatus(): { name: string; enabled: boolean; nextRun?: Date }[] {
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return this.taskDefinitions.map(taskDef => ({
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name: taskDef.name,
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enabled: taskDef.enabled,
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nextRun: this.tasks.get(taskDef.name)?.nextDate()?.toDate()
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}));
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}
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// Stop all scheduled tasks
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shutdown() {
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log('Shutting down task scheduler...', 'scheduler');
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this.tasks.forEach((task, name) => {
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task.stop();
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log(`Stopped task: ${name}`, 'scheduler');
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});
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this.tasks.clear();
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log('Task scheduler shutdown completed', 'scheduler');
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}
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}
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export const taskScheduler = new TaskScheduler();
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