Resource temporarily unavailable: mod_wsgi (pid=28433): Unable to connect to WSGI daemon process

Génessis Sánchez

First of all: I'm working on a web server using Apache/2.2.31 (Unix) and Django 1.8 with WSGI.

Everything was fine until I did some changes to my views.py file and touched the wsgi.py in order for changes to take effect. Right after, everytime I try to access with the browser to any page on my domain, it returns the following message:

Service Temporarily Unavailable

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.

Additionally, a 503 Service Temporarily Unavailable error was encountered while trying to use an ErrorDocument to handle the request.

My Apache's error_log has the following entries:

[Mon Dec 28 23:06:02 2015] [error] [client xx.xx.xx.xx] (11)Resource temporarily unavailable: mod_wsgi (pid=24172): Unable to connect to WSGI daemon process 'name_of_my_project' on '/route/to/apache/log/wsgi.1922.18.1.sock' after multiple attempts as listener backlog limit was exceeded., referer: http://myproject.com/
[Mon Dec 28 23:06:17 2015] [error] [client xx.xx.xx.xx] (11)Resource temporarily unavailable: mod_wsgi (pid=24172): Unable to connect to WSGI daemon process 'name_of_my_project' on '/route/to/apache/log/wsgi.1922.18.1.sock' after multiple attempts as listener backlog limit was exceeded., referer: http://myproject.com/
[Mon Dec 28 23:16:02 2015] [error] [client xx.xx.xx.xx] (11)Resource temporarily unavailable: mod_wsgi (pid=28572): Unable to connect to WSGI daemon process 'name_of_my_project' on '/route/to/apache/log/wsgi.1922.18.1.sock' after multiple attempts as listener backlog limit was exceeded.
[Mon Dec 28 23:16:17 2015] [error] [client xx.xx.xx.xx] (11)Resource temporarily unavailable: mod_wsgi (pid=28572): Unable to connect to WSGI daemon process 'name_of_my_project' on '/route/to/apache/log/wsgi.1922.18.1.sock' after multiple attempts as listener backlog limit was exceeded.

I've been looking for a solution all day and I've found this: https://groups.google.com/forum/#!topic/modwsgi/H7qPoqYNJdI

and this unanswered question: https://stackoverflow.com/questions/33549891/mod-wsgi-returning-503-service-unavailable

but I don't know how to fix it. Please, help me.

Génessis Sánchez

After finding no answers, I solved it restarting Apache.

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