How do I prevent PM2 logs from filling up disk?
Install pm2-logrotate with pm2 install pm2-logrotate. Configure max file size (pm2 set pm2-logrotate:max_size 5M), retention (pm2 set pm2-logrotate:retain 7), and compression (pm2 set pm2-logrotate:compress true).
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More FAQs in Monitoring and Logging on EC2 Keeping Your Node.js App Healthy in Production
Use pm2 monit for real-time CPU/memory monitoring, pm2 logs for streaming logs, pm2 status for process status. For external monitoring, use UptimeRobot for uptime checks and Sentry for error tracking. Set up a /health endpoint for health checks.
A 200 status with JSON containing status: 'ok', uptime, timestamp, and environment. It should not require authentication, should be fast (no database queries), and should be accessible at /api/health for external monitoring tools.
Install @sentry/node, initialize with your DSN in app.js, and add Sentry.Handlers.errorHandler() before your global error handler. Sentry captures unhandled errors, sends alerts, and provides a dashboard for tracking issues.
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