Rails exception tracking with Graylog2 - RubyAndRails 2010 EU
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The document discusses Graylog2, an open source log management tool. It describes how Graylog2 can be used to collect, aggregate, and analyze logs from servers in various formats including syslog, GELF, and exceptions from Rails applications. Features include searching, notifications, and a roadmap to add more analysis capabilities and fine-grained notifications.
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- 1. Rails exception tracking with Graylog2 Manage your logs in the dark and have lasers going and make it look like you're from space Lennart Koopmann RubyAndRails EU Amsterdam, 2010
- 2. About me Lennart Koopmann 22 years old Living in Hamburg, working at Jimdo lennartkoopmann.net / @_lennart
- 3. Log server with web interface.
- 4. phpLogCon … let's not talk about that Graylog1: August 2009 Graylog2: August 2010
- 7. GELF (UDP)
- 8. Graylog extended log format UDP - Max (GZIP) 8192 byte per message (Chunking is supported) Libraries for Ruby and PHP available
- 9. { }
- 10. { ' message ':'Exception: Something went wrong.' }
- 11. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars' }
- 12. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19' }
- 13. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19', ' file ':'/var/www/index.php' }
- 14. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19', ' file ':'/var/www/index.php', ' line ':2638 }
- 15. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19', ' file ':'/var/www/index.php', ' line ':2638, ' level ':1 }
- 16. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19', ' file ':'/var/www/index.php', ' line ':2638, ' level ':1, ' something ':'foo' }
- 17. { ' message ':'Exception: Something went wrong.', ' full_message ':'Stacktrace.\nSome env vars', ' host ':'www19', ' file ':'/var/www/index.php', ' line ':2638, ' level ':1, ' something ':'foo', ' something_else ':'bar' }
- 18. Chunking
- 19. Use Cases
- 20. Plain syslog Collect everything of your /var/log from all servers, aggregate, analyze and get a warning if something goes wrong
- 21. GELF Embed it into the logging class of your application and trigger with every error. Include stacktrace and env vars in full message. Later filter by file:line to get statistics.
- 22. Aggregate, analyze and get a warning if something goes wrong
- 23. Notifications Currently only Nagios hook (rake task) – Triggered at too many messages in last X minutes
- 24. Average page generation time Graylog1 / MySQL: ~12000ms
- 25. Average page generation time Graylog1 / MySQL: ~12000ms Graylog2 / MongoDB: ~250ms
- 26. Exception tracking with Rails Rack middleware available as gem
- 27. lennart ~$ sudo gem install graylog2_exceptions Successfully installed gelf-0.9.1 Successfully installed graylog2_exceptions-0.5.3
- 28. # config/environment.rb config.middleware.use " Graylog2Exceptions ", { :host => ' 127.0.0.1 ', :port => ' 12201 ', :local_app_name => ' mama ' }
- 29. Roadmap
- 30. Incident management Define chained rules that explain an incident. Trigger several actions when incident occurs.
- 31. Fine grained notifications Be informed via Email, XMPP, SMS by Graylog2 directly without Nagios hook
- 32. More analyzing
- 34. Live demo. www.graylog2.org / @Graylog2 www.lennartkoopmann.net / @_lennart (Slides are on Slideshare)