> On Jan 15, 2016, at 10:08 AM, Jean-Pierre Ribeauville > <[email protected]> wrote: > > Hi, > > I’m using a channel device between host and guest to exchange datas every 20 > seconds. > > On the Guest size , there is an open /dev/virtio file on which we read > continuously what’s > sent by the host. > > My question is the following : > When migrating the Guest to another host , and the migrating back to the > first one , > the Guest software doesn’t receive anymore datas from the host unless I > restart the Guest software to re-open the /dev/virtio file. > > Is there any way to detect in the Guest that migration has been done so we > have to reopen the file ?
Well you can look how we do it in the ovirt-guest-agent. But we’re not reopening the unix domain socket - We’re basically on read failure just rescheduling the read - That causes no problems after migrations - it just continues Our python code for that is here: https://github.com/oVirt/ovirt-guest-agent/blob/master/ovirt-guest-agent/VirtIoChannel.py HTH > > Any hint is welcome . > > Thanks for help. > > > J.P. Ribeauville > > P: +33.(0).1.47.17.20.49 > . > Puteaux 3 Etage 5 Bureau 4 > > [email protected] <mailto:[email protected]> > http://www.axway.com <http://www.axway.com/> > > P Pensez à l’environnement avant d’imprimer. > > > _______________________________________________ > Users mailing list > [email protected] <mailto:[email protected]> > http://lists.ovirt.org/mailman/listinfo/users > <http://lists.ovirt.org/mailman/listinfo/users>
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