Chapter 8 of the IREn InGrid User Guide
Using IREn InGrid in Fork mode
Fork is basically a service integrator (or proxying) mode, and it serves to aid running and maintenance of multiple instances of other IREn InGrid modes. Other modes are specified via tine elements, where each tine element corresponds to one IREn InGrid instance. Each tine element has its own conf attribute pointing to a valid IREn InGrid configuration file.
Note: Since Fork mode involves many instances of IREn InGrid, log reports may grow rapidly, thus making troubleshooting complicated. To simplify initial configuring and testing as well as troubleshooting, we recommend configuring and testing each instance separately first. Once all needed instances work flawlessly alone, go ahead and configure Fork to run them together.