=== Inspecting memory usage ===

ifdef::apache[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/apache/overall_status_report.html
endif::[]
ifdef::nginx[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/nginx/overall_status_report.html
endif::[]
ifdef::standalone[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/standalone/overall_status_report.html
endif::[]


=== Inspecting Phusion Passenger's internal status ===

ifdef::apache[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/apache/overall_status_report.html
endif::[]
ifdef::nginx[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/nginx/overall_status_report.html
endif::[]
ifdef::standalone[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/standalone/overall_status_report.html
endif::[]


[[debugging_frozen]]
=== Debugging frozen applications ===

If one of your application processes is frozen (stopped responding), then you
can figure out where it is frozen by killing it with 'SIGABRT'. This will cause the
processs to print a backtrace, after which it aborts. The backtrace information is
logged into the web server error log file.

In case of Ruby applications, you can also send the 'SIGQUIT' signal to have it print
a backtrace without aborting.


=== Accessing individual application processes ===

ifdef::apache[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/apache/request_individual_processes.html
endif::[]
ifdef::nginx[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/nginx/request_individual_processes.html
endif::[]
ifdef::standalone[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/standalone/request_individual_processes.html
endif::[]

=== Attaching an IRB console to an application process ===

ifdef::apache[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/apache/debugging_console/
endif::[]
ifdef::nginx[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/nginx/debugging_console/
endif::[]
ifdef::standalone[]
This documentation has moved. Please visit https://www.phusionpassenger.com/library/admin/standalone/debugging_console/
endif::[]