I have an install of django on apache using embedded wsgi. I DON'T have root on the machine.
How can I tell apache to reload the python instance when I deploy new source code?
I tried removing all the .pyc files and it still is running the old code.
+2
A:
http://code.google.com/p/modwsgi/wiki/ReloadingSourceCode
This article about reloading source code with mod_wsgi goes into how to reload source code, and even how to create a monitor script to automatically reload the daemon when you make source changes. It's really good for setting up a development environment using mod_wsgi.
Marquis Wang
2009-07-01 19:52:01
That link seems to recommend `MaxRequestsPerChild 1` which will kill my performance. I was looking for a way to reload it whenever I do a push.
Paul Tarjan
2009-07-01 20:08:05
You don't have to use that... check out the next three sections in the article about daemon mode and code change monitoring.
Marquis Wang
2009-07-01 20:21:17
Daemon mode is the answer. Two lines in the apache config, and it doesn't cost must performance. thanks
Paul Tarjan
2009-07-01 21:46:54
The document actually says about MaxRequestsPerChild that 'using this method is not recommended'. So, although it explains that you can do it, you really should use mod_wsgi daemon mode instead. It definitely isn't being recommended as you suggest.
Graham Dumpleton
2009-07-02 00:55:12
+4
A:
If you are running mod_wsgi in daemon mode with apache, you may not have to restart apache to get it to reload.
I just touch my wsgi file (unix: touch updates the 'saved date' of a file) and apache reloads it on next access/web-hit.
See http://code.google.com/p/modwsgi/wiki/QuickConfigurationGuide
... as long as you can alter the timestamp on the WSGI script.
joej
2009-07-01 20:22:41
"touch filename.wsgi" is the correct way to do it, and does not require root or restarting apache. Since I generally only want to do this immediately after checking out new code, I set up an alias to get latest code and touch the wsgi at the same time, e.g.:alias upcrest='cd /home/crest/sites/projects/ourcrestmont; svn up; touch /home/crest/our/ourcrestmont.wsgi'
shacker
2009-07-02 15:40:19
There are quiet a few catch, see http://code.google.com/p/modwsgi/wiki/ReloadingSourceCode#Reloading_In_Embedded_Mode
Wernight
2010-08-01 21:35:05