On Wed, 2005-06-01 at 07:01 +1000, Howard Lowndes wrote:
> 
> Ryan Verner wrote:
> > On Tue, 2005-05-31 at 22:28 +1000, David wrote:
> > 
> >>>I have a routine that runs an rsync to sync data from a Linux fs to a
> >>>vfat fs which I have smbmounted on a linux fs.
> >>>
> >>>It runs quite happily for a while, then stalls.
> >>>
> >>>the rsync command I an using is:
> >>>rsync -vrtL --delete /home/ext3fs /home/vfatfs
> >>>
> >>>What is the best way to find out why it might be stalling?  I know
> >>>where, but why.
> >>>
> >>
> >>
> >>I've had a lot of trouble with rsync stalling. I've managed to cure it
> >>without understanding the reasons. Try adding --bwlimit=nnnn
> > 
> > 
> > Sounds like packet shaping somewhere is causing packet loss, which rsync
> > tends not to handle very well.
> 
> I wouldn't be expecting packet shaping on a LAN.

Right, but you might still be getting packet loss.  I just replaced a
switch two days ago exactly because of that, and I've had Realtek cards
do odd things under certain kernels.

Lowering the MTU, as somebody else mentioned, tends to make packet loss
more tolerable.

Of course, might not be this at all - just a stab in the dark based from
lots of previous similar experiences :)

R

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