Question about cleanup.sh script for data.

Hi Appian,

I found that there is a cleanup.sh script that helps data maintenance.

( https://docs.appian.com/suite/help/22.1/Data_Maintenance.html#cleanup-script )

From the documentation, is says that [actions] for [data] cleans up old data files (*.kdb) in the live `gw*` directories.

What are the content of the data files (*.kdb) that will be cleaned up from 'gw' directories?

And what does the 'gw' directories stand for?

Thank you