For the past several days our Central site has been getting hammered with Distrmgr.box/Incoming files, the distribution manager components shows over 100K informational events from all the DPs. I don't really know what is forcing all these backlogs nor what triggered all these DP's to get new information. Nor i see any errors in the distrmgr.log.
This is from System Status/Components/SMS_DISTRIBUTION_MANAGER.
SMS Distribution Manager instructed SMS scheduler and Sender to send the package information for package "XXXXXXX",