Monitoring your Application

A talk about monitoring your application (primarily Symfony2, but also applicable to any PHP project, or indeed web project), given at November Camp by Symfony Sweden.

1. Monitoring your application
2. About me • Magnus Nordlander • Symfony consultant at Fervo AB • 10 years of PHP experience • SensioLabs certified Symfony Developer (expert level)
3. Launching your application
4. http://www.flickr.com/photos/thelastminute/4397522045/
5. http://www.flickr.com/photos/andresthor/3810596963/
6. Goals • Errors and exceptions • Server and application status • Performance • Usability
7. Strategy • Log exceptions and errors • Monitor server and application status • Monitor performance • E-mail us if something's out of whack • Collect metrics on usability
8. An even better strategy • Log everything • Monitor and record server and application status • Monitor and record performance • Message and call us if something's out of whack • Collect and present metrics on usability
9. Tools • Graylog2 • New Relic • Statsd + Graphite
10. Logging
11. Logging • Log everything • Use log levels and channels to differentiate • Use PSR-3 • Use a framework with logging support
12. Logging in Symfony • Ships with Monolog, PSR-3 compatible • Logs a lot, at various levels • Add gelf-php, and configure the GelfHandler
13. Logging in Symfony "require": { "mlehner/gelf-php": "~1.0", }
14. Logging in Symfony monolog: handlers: main: type: fingers_crossed action_level: info handler: nested nested: type: gelf publisher: hostname: localhost # required port: 12201 # optional chunk_size: 1420 # optional
15. Logging in Symfony $logger->info("Somebody set up us the bomb!", ['foo' => 'bar']);
16. Demo
17. Rule #0: Log everything
18. What should I log? • Symfony logs • Web server logs • PHP error logs • Varnish logs • SSH login attempts
19. Graylog2 • Keep logs for as long as you can • Utilize the extra fields • Add correlation fields • Set up monitoring
20. Application monitoring
21. New Relic • Free, Standard, Pro • Application Performance Management • Server monitoring
23. EkinoNewRelicBundle • Transaction naming • Exception logging • Command monitoring • Deployment notifications
24. Demo
25. New Relic • Use key transactions • Tune your Apdex-T • Set up alerting • Use the plug-ins
26. Statistics
27. Statistics • Dual purpose • Business • Monitoring • Collect as much as you can
28. LiuggioStatsDClientBundle • Uses liuggio/statsd-php-client • Easy to collect statistics yourself • Built-in collectors
29. LiuggioStatsDClientBundle $data = $this ->get('liuggio_stats_d_client.factory') ->increment('pageviews.checkout'); $this->get('liuggio_stats_d_client.service')->send($data);
30. Demo
31. Statsd / Graphite • Collect as much as you can • Build a dashboard • Get TVs for your developers and ops people • Alerting via Seyren
32. Cross-concerns
33. Alerting • E-mail is easy • SMS is better • PagerDuty is awesome
34. Code structure • Events with logging and statistics listeners • Statistics collectors • Libraries with PSR-3 support
35. Be pragmatic
36. Questions? • Contact me at magnus@fervo.se • Follow me on Twitter: @drrotmos and @FervoAB • Rate my talk at joind.in/10128