[ILUG] rsync over ssh problem

[Ronan Mullally]

> On Wed, 2010-08-18 at 11:04 +0100, Brian O'Mahony wrote:
> > FYI I have been having this issue sync'ing data over an MPLS between
> > Dublin & Bangalore on a nightly basis. It only happens on the first
> > data transfer of the night, and things are quiet (ie its 5am BLR time,
> > and 1am Irish time, so there should be no one in the office.)
> >
> > I would be very interested if you find a solution. To be honest I have
> > ignored this for a good few months (I just scheduled an extra data
> > transfer a minute before all the rest kick off that I know will fail).

> > -----Original Message-----
> >
> > Part of our backup routine is a cron job that runs rsync over ssh to an
> > offsite computer every night. Recently I have noticed that it fails
> > about 1/2 of the time, not always and a failed rysnc one night might
> > work fine the next night.
> >
> > The error we get is:
> >
> > Write failed: Broken pipe
> > rsync: connection unexpectedly closed (13729658 bytes received so far)
> > [receiver]
> > rsync error: error in rsync protocol data stream (code 12) at io.c(601)
> > [receiver=3.0.7]
> > rsync: connection unexpectedly closed (783 bytes received so far)
> > [generator]
> > rsync error: unexplained error (code 255) at io.c(601) [generator=3.0.7]

Have you tried reducing the MTU on your outbound interface?  There may be
a hop along the link that has a < 1500 byte MTU, or some encapsulation
hidden away somewhere that's eating into the frame size.


-Ronan