Noel Butler writes:
>> I found the same thing, and turning off write delegation seemed
>> to have solved the problem. I still don't know why, though.
>
> write delegation is disabled by default on NetApp with v4, or have they
> changed this now?
I think this is still the case: when I exported NFSv4, I also turned on
both r/w delegation as well. The exported filesystem exhibited weird
locking or slow write operations on NFS clients (e.g. "touch newfile"
would take a second to complete). This went away when I turned off
write delegation.
Joseph Tam <jtam.home at gmail.com>