Question

I recently got my first app to work in uWSGI with Cherokee. I used the following code taken from the uWSGI docs:

def application(environ, start_response):
  start_response( 200 OK , [( Content-Type ,  text/plain )])
  yield  Hello World

The page correctly reads Hello World. When I change that text to New Thing and refresh, nothing changes. What am I forgetting?

What I ve tried:

clearing browser history and cache
stopping and starting Cherokee

Edit: To clarify, I change Hello World to New Thing in the Python code. Then I stop Cherokee, refresh, and I obviously see an error message. I restart Cherokee, refresh, and I see Hello World.

Answer 1

So the way this works is that Cherokee is managing a running uwsgi instance in the back ground for you. What I ve noticed so far, and I ve not finished looking at, is that if you shut down Cherokee it doesn t seem to also shut down running uwsgi instances.

Try this:

sudo service cherokee start
ps aux | grep uwsgi 
# you should see nothing from this ps command

# now hit your web app
sudo service cherokee stop
ps aux | grep uwsgi
# you should see the instance of uwsgi that cherokee started

So your app code is actually run via uwsgi and Cherokee is more like a proxy server. In order to update the app code you need to send the HUP signal to uwsgi, not Cherkee.

sudo killall -HUP uwsgi

That should cause uwsgi to update to your app changes regardless of Cherokee.

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