strange nfs/rsync stalls

[Raimundo Santos]

Hello,

sorry for the necromancy here.

I had issues with a simples NAS that exports NFS only for "nobody:nobody"
as rsync tries to set uid and gid. Just take off this feature with:

rsync -a --no-g --no-o

and everything went fine.

Hope it helps someone.

Best regards,
Raimundo Santos

On 6 November 2015 at 05:09, Gerrit Kühn <gerrit.kuehn at aei.mpg.de> wrote:

> On Wed, 4 Nov 2015 14:43:54 +0100 Gerrit Kühn <gerrit.kuehn at aei.mpg.de>
> wrote about strange nfs/rsync stalls:
>
> > I have a couple of other machines that use the same server in the same
> > way, none of them ever showed this behaviour. Are there any
> > suggestions how to debug/fix this?
>
> Some more pointers from my side: I see a similar issue when using rsync
> over ssh, so this does not appear to be a nfs issue. However, even when
> running rsync with -vvv and debug turned on, I cannot find any hard reason
> for the lockups. They appear to happen erratically, not at a fixed file or
> such. When transferring over ssh, I can press CTRL-C to make the syncing
> go on until the next lockup happens.
> I also tried to swap client and server (i.e., the machine where I start
> rsync), and that runs without any issue... which leaves me even more
> puzzled. Any hints are still very welcome.
>
>
> cu
>   Gerrit
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