As a follow-up, the problem has ceased viz. additional users having this problem. After sifting through logs we found references to VM over-write which to me sounds like a ‘simple’ memory leak. We rebooted the Xserve and the problem has not surfaced for any additional users.
However, a few users who hadn’t logged onto the network since this problem started at the beginning of this week did run into the same symptoms. Hopefully after today no additional user problems will crop up.
A memory leak would certainly explain the sort of ‘hit’ the OD database took and the sort of symptoms we saw. If anyone has anything to add, please do, either anecdotal or otherwise.
Thanks for reading…