Monitoring your Application

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Monitoring your application

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About me • Magnus Nordlander • Symfony consultant at Fervo AB • 10 years of PHP experience • SensioLabs certiﬁed Symfony Developer (expert level)

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Launching your application

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http://www.ﬂickr.com/photos/thelastminute/4397522045/

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http://www.ﬂickr.com/photos/andresthor/3810596963/

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Goals • Errors and exceptions • Server and application status • Performance • Usability

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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

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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

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Tools • Graylog2 • New Relic • Statsd + Graphite

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Logging

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Logging • Log everything • Use log levels and channels to differentiate • Use PSR-3 • Use a framework with logging support

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Logging in Symfony • Ships with Monolog, PSR-3 compatible • Logs a lot, at various levels • Add gelf-php, and conﬁgure the GelfHandler

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Logging in Symfony "require": { "mlehner/gelf-php": "~1.0", }

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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

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Logging in Symfony $logger->info("Somebody set up us the bomb!", ['foo' => 'bar']);

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Demo

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Rule #0: Log everything

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What should I log? • Symfony logs • Web server logs • PHP error logs • Varnish logs • SSH login attempts

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Graylog2 • Keep logs for as long as you can • Utilize the extra ﬁelds • Add correlation ﬁelds • Set up monitoring

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Application monitoring

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New Relic • Free, Standard, Pro • Application Performance Management • Server monitoring

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EkinoNewRelicBundle • Transaction naming • Exception logging • Command monitoring • Deployment notiﬁcations

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Demo

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New Relic • Use key transactions • Tune your Apdex-T • Set up alerting • Use the plug-ins

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Statistics

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Statistics • Dual purpose • Business • Monitoring • Collect as much as you can

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LiuggioStatsDClientBundle • Uses liuggio/statsd-php-client • Easy to collect statistics yourself • Built-in collectors

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LiuggioStatsDClientBundle $data = $this ->get('liuggio_stats_d_client.factory') ->increment('pageviews.checkout'); $this->get('liuggio_stats_d_client.service')->send($data);

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Demo

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Statsd / Graphite • Collect as much as you can • Build a dashboard • Get TVs for your developers and ops people • Alerting via Seyren

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Cross-concerns

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Alerting • E-mail is easy • SMS is better • PagerDuty is awesome

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Code structure • Events with logging and statistics listeners • Statistics collectors • Libraries with PSR-3 support

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Be pragmatic

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Questions? • Contact me at [email protected] • Follow me on Twitter: @drrotmos and @FervoAB • Rate my talk at joind.in/10128