Hi Brian, If the message is, in fact, always associated with slava77.2334:[log in to unmask] then this is an error. What it means is that upon selection to do a prepare request for a prticular file, one or more servers were marked as pending query for the file. This causes the prep to delay until the pending status gets resolved. This can also happen if the request is tagged with refresh (which I don't think it can be but will check). If the refresh mode is not removed after the first try, you will get this result. So, does every message refer to the same user@host? Andy -----Original Message----- From: Brian Bockelman Sent: Wednesday, September 14, 2011 4:40 PM To: xrootd-dev Subject: Help interpreting a cmsd error message Hi all, I'm getting the following message in the regional redirector's cmsd logs: 110914 18:35:00 11209 slava77.2334:[log in to unmask] do_SelPrep: prep delayed 5 seconds This message has been repeating for the last … 5 days. I would have thought some timeout would have kicked in by now. Brian