Multiple requests from WebCenter Sites page

We've created a page and this page template calls a method of a class that is in a jar file.

This method does a data load on an application database.

It is a huge load it takes more than half an hour.

We note that in this process, after a few minutes, another call is made to the method of the jar file.

This doesn't happen when it is made a small data load. In other words, this doesn't happen when the process is fast.

Is there any way to prevent it from being made other calls to the jar file on this particular page, just once?