Hi,
For this specific server, this is SL 6.2. This is a hardware machine, dell C6220.
We don't have network-manager installed, and we don't want it : we do a minimal install and then install what we need. We know how bad NM can be ;)
All the nodes have the same software installed on them except maybe the OS which might be SL6.5 or 6.2, but we only have DELL servers which handle the emX scheme, so at least I can say it's happening on DELLs ;)
I haven't had enough cases to be able to find out anything common, but in the present case, the udev file was modified on may 5. 2014 and for instance we had no yum update around that date, which I thought could be a perfect trigger for udev reconfig.
> -----Message d'origine-----
> De : Nico Kadel-Garcia [mailto:[log in to unmask]]
> Envoyé : lundi 28 juillet 2014 13:14
> À : SCHAER Frederic
> Cc : [log in to unmask]
> Objet : Re: udev persistent net rules erratic inconsistencies
>
> On Mon, Jul 28, 2014 at 5:35 AM, SCHAER Frederic <[log in to unmask]> wrote:
> > Hi,
> >
> >
> >
> > From time to time, we get reboot issues with some machines, and each time it
> > looks like there are duplicated persistent rules for the Ethernet devices :
>
> On which Scientific Linux release? And is it hardware, or a
> virtualized system with added network configuration tools like
> VMware-tools ?
>
> > The second set of rules seem to overwrite the first one, and then we get
> > issues with our network config.
> >
> > This does not happen on all nodes, just apparently to some random ones,
> > sometimes.
>
> Do try and figure out which nodes those are, if there is common
> software on them. I do warn you that letting NetworkManager anywhere
> near a stable server configuration is like letting toddlers into a
> machine shop. It *will* break things.
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