I and many others have been plagued by a problem that can be
summarised
as follows:
Client hangs upon copying of large files TO the server. Transfer begins
quickly then hangs, sometimes taking the client o/s with it, until
transfer starts again. In less extreme cases transfer is sporadic.
I am using nfs4 w gigabit nics.
http://ubuntuforums.org/showthread.php?p=9269703
It appears that this problem is not restricted to ubuntu and exists
Could this perhaps be related to the following bugzilla entry?
https://bugzilla.kernel.org/show_bug.cgi?id=16213
If so, then could you please try the proposed fix and see if it helps.
Cheers
Trond
Thanks Trond,
The patch solved the client lockups with a patched vanilla kernel (will
keep trying with an ubuntu kernel, as it should do the same, but didnt)
Unfortunatley it dousnt fix the other problem, as it seems they are
separate, of the transfer happening in bursts, reducing the actual
throughput dramatically. i.e transfer starts at 16mb/s (according to
nautilus), then 3 or 4 seconds later the progress bar stops, the hdd
activity also stops (its the same with cp of course, nautilus just gives
me a good indication of xfer speed), then 4 or 5 seconds later it starts
again for 3 or 4 seconds.... repeat ad nausium...
Refer to the forum thread for graphs etc. of throughput if nesc.
Thanks.
Jasper
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