For a Node scoped data page, when we check the option 'Clear pages after non-use', how much time should elapse before Pega engine determines that the data page is not used?

We load Node level data page for each service case and need to know when they would be purged by the system.

We are not manually purging at the end of case because we would like the pages to be there for an hour or two for debugging purpose. We prefer not to write an agent job to scan periodically for 'idle' data pages and purge them.

We want the Data Page option 'Clear pages after non-use' to take care of purging idle data pages, we just don't know how long the pages will be in memory.

We use node level data pages for each service case, because these pages are loaded by Customer Service application and then consumed by Marketing application running in different requestor sessions, on the same box.

Thanks,

-Sri