Reference Guide

Zend Server Reference Manual
Executing Web Servers
As far as execution is concerned, running a job is no more than sending a simple HTTP request. When
creating a new job through API or GUI, the user specifies the URL for this HTTP request, along with some
possible optional parameters. When it's time to run the job, the Job Queue Daemon sends an HTTP
request to the server specified by the URL along with the provided headers and parameters, and waits for
a response.
The executing HTTP server can be any HTTP server – it might even be the same server that queued the
job. This design makes it very easy to manage the system. You don't have to (but can, if needed) set up
dedicated servers for handling off-line jobs. You don't have to (but can, if needed) create and manage a
special PHP configuration for this environment. You can reuse existing code to a level where sometimes
the difference between off-line and on-line execution is decided based on a simple request parameter.
200