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Magento Debugging

Yireo
Yireo

Slides used during Magento User Group Den Bosch, dealing with Magento debugging - tools, extensions and tips on how to troubleshoot Magento errors and performance.

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Magento debugging 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
Basics 
System > Configuration > Developer 
Logging 
Template Path Hints 
MAGENTO_ROOT/var/log 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo 
system.log 
exception.log 
MAGENTO_ROOT/var/report 
Exception handling > Graylog2, Loggly
Blank page 
A blanc page tells you nothing 
500 Internal Server Error = “look internally for the actual error” 
Webserver (Apache, Nginx) error_log 
Or enable PHP “display_errors” 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
Magento extensions 
Aoe_Profiler 
Commerce Bug (astorm) 
Mgt_Developertoolbar 
Magento Debug (github.com/jreinke) 
Magneto Debug 
Yireo_ProfilerLog 
Yireo_NewRelic 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
Magento command-line tools 
n98-magerun (+ composer) 
modman 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
Linux tools 
git, vim, locate, lockrun 
top, ps, free, netstat, vmstat, tcpdump, uptime, nice 
lsof, iostat, htop, atop, pidstat 
Percona Toolkit 
Presentation “Magento Debugging” - http://slideshare.net/yireo 
Jisse Reitsma (jisse@yireo.com) - Twitter @yireo

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Magento Debugging

  • 1. Magento debugging Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 2. Basics System > Configuration > Developer Logging Template Path Hints MAGENTO_ROOT/var/log Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo system.log exception.log MAGENTO_ROOT/var/report Exception handling > Graylog2, Loggly
  • 3. Blank page A blanc page tells you nothing 500 Internal Server Error = “look internally for the actual error” Webserver (Apache, Nginx) error_log Or enable PHP “display_errors” Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 4. Magento extensions Aoe_Profiler Commerce Bug (astorm) Mgt_Developertoolbar Magento Debug (github.com/jreinke) Magneto Debug Yireo_ProfilerLog Yireo_NewRelic Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 5. Magento command-line tools n98-magerun (+ composer) modman Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 6. Linux tools git, vim, locate, lockrun top, ps, free, netstat, vmstat, tcpdump, uptime, nice lsof, iostat, htop, atop, pidstat Percona Toolkit Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 7. PHP environment Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo PHP settings log_errors, display_errors, error_reporting PHP modules xdebug
  • 8. Magento programming Mage::setIsDeveloperMode(true); Zend_Debug::dump($variable); Mage::log(var_export($entity->debug(), true))); $model->getData(); Mage::app()->getConfig()->getNode()->asXML() Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo
  • 9. New Relic Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo Subscriptions New Relic Free New Relic Pro > application tracing (14 day trial) Monitoring Application (PHP, webserver, MySQL) Server Magento Yireo_NewRelic extension
  • 10. Zend Server Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo Z-Ray Deep code inspection php_prepend_file
  • 11. tweet @yireo Presentation “Magento Debugging” - http://slideshare.net/yireo Jisse Reitsma (jisse@yireo.com) - Twitter @yireo