Is there any information available about the behavior of the queue and specifically the population of the queue_item table?
I have over 5,000 rows in the queue_items table dating back to April of this year; I don't know if queue items are supposed to be removed from the table once they are done with. I assume that the items must get removed at some point since the highest ID is over 30,000 but only 5,000 are in the table.
Also: 3800 of those are of transport "xmppout." I'm giving up on getting XMPP to work on my system and have disabled it. Can I safely just delete those rows from the database or will that mess up the queue daemon?