Excerpts from Andy Smith's message of 2011-05-22 03:16:28 +0100:
I suspect you may have large numbers of deleted-but-still-open
files. Have you just done something such as clear out large apache
logs without restarting apache?
# lsof | grep deleted
That was it - I get couchdb to compact the database every night and
that (or something else associated with couch) seems to have left
the big files hanging around deleted but not closed.
When I noticed the problem I thought there was a chance that rebooting
would fix it but I wanted to work out the cause. Thank you for your
help.
Chris