Thursday, February 26, 2015

The problem is that in the basic mode is running as embeded vwr WSGI application. What is so good f

WSGI lousy performance? What to read the manual?
As I write this now, WSGI shifts hosting options Python app on leaps forward. U WSGI is, however, one betrayal that can cause that your application has instead dramatically high performance, lousy performance dramatically.
The problem is that in the basic mode is running as embeded vwr WSGI application. What is so good for a small, simple application type Hello Mexico. Hence, when you're not the experts on tunenie Apache, is more suitable for you mode when running in daemon application process.
Messa says:
Python frameworks nor are they intended to knew how to load balancing, proxy rules etc., because it is thought to be behind the front-end webserver (Lighttpd, Nginx, Apache ...), which just this way they can. Nor would the same IP address could not run more applications
My point is that the typical thinking too-admin server is "I have Apache, I XXX language, so that they must install mod_XXX." (Fortunately, it is more popular than mod_python mod_wsgi.) But I ponder over how Apache works that after akceptnutí in conjunction child process just the WSGI applications that process will have to run (if already running), and in a few minutes / hours of those instances vwr will be at least as much as the child processes, because unlike PHP these instances after treatment the request is complete. And the child process is as small mice.
The same follows for each additional application deployment - in every child Apache process will eventually run from one instance of each application, while it is clear that in one particular time is used, only one of them and the others just take up memory vwr and waiting for the right one " their "request. And here still do not resolve the permissions (so that users / clients did not extend to other files), it might not even solve.
But mostly, vwr the admin mod_něco installed, you must run it after all, so they do it all? Yes, some webhostingy using mod_python, but only grudgingly and only the most expensive fares, why some
System solution is just proxování or mod_wsgi daemon mode, which is just proxování with another protocol. vwr Even a "front-end" web server can run another Apache dedicated only to the application, but it is better vwr to run HTTP server directly in Python (for production vwr use CherryPyWSGIServer need for development whatever, from the wsgiref). Please do not Apache-centric - install mod_něco vwr by tutorial sometimes not enough, vwr it is necessary vwr to consider (when he did not author vwr the tutorial)
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