Comment # 2 on bug 1217488 from Neil Brown

pynfs only waits for 10 seconds for the DELAY error to go away.  I guess that
isn't long enough.

I think that failing the OP_SETCLIENTID just because there are already lots of
clients is a bad choice.  Certainly fail if there is a real shortage of memory,
but  not otherwise.  Certainly look for idle clients to clean up, but don't
fail.

I'll post a patch upstream and see what they think.