On 26.10.11 22:32, Russell Coker wrote:
To get the space back I ended up commenting out the line from /etc/exports, running "exportfs -r", then umounting and mounting it. I didn't check whether the space was free after running "exportfs -r", it probably was.
Wouldn't it have been enough to unmount & remount? That's long [1] been enough to clear stale NFS file handles for me. (And so I'd expect df to then report OK for you.)
It seems that I was caught by the issue of open file handles. NFS is stateless so it doesn't necessarily process deletion for some time to handle the case of a NFS client that is running processes with open file handles.
How long is this supposed to go for? Can I force NFS to give up such caching when I need the space sooner than NFS will free it?
Don't know. I gave up waiting, and whumped it when the users complained. Erik [1] Used to use NFS a lot more nearly 20 years back. -- It is wrong for a man to say he is certain of the objective truth of a proposition unless he can provide evidence which logically justifies that certainty. - Thomas Henry Huxley