https://fedorahosted.org/389/ticket/47701
https://fedorahosted.org/389/attachment/ticket/47701/0001-Ticket-47701-Ma...
Description: Currently, retro changelog trim interval is hardcoded
with 5 minutes.
#define CHANGELOGDB_TRIM_INTERVAL 300*1000 /* 5 minutes
Better have a control on the interval based upon the DS usage --
e.g., if there is no updates, we don't need to call changelog_trim
via retrocl_housekeeping every 5 minutes.