Gustavo, As I understand the live_migration_uri variable must not reflect the hostname of the compute-node itself, but it's the URL that the source compute-node must construct for the destination compute-node were the VM will be migrated.
So setting the hostname of the hypervisor inside this variable would mean "migrate this instance on myself" and that's not what we want. I'll dig a bit into that. +++ Romain -----Original Message----- From: gustavo panizzo (gfa) [mailto:g...@zumbi.com.ar] Sent: jeudi 2 juillet 2015 09:11 To: Aviolat Romain; openstack@lists.openstack.org Subject: Re: [Openstack] Openstack live migration and multiple interfaces / fqdn why don't you fix it with your configuration management? You could patch nova but I think is far more easy to tell puppet/cheff/salt to set live_migration_uri the way you want my 0.02 $ On 2015-07-02 14:57, Aviolat Romain wrote: > Hi Gustavo, > > Yes we already tried to play with the live_migration_uri variable, the > problem is that we use FQDNs as our hypervisors hostnames (it's related to > lldp and networking stuffs). > > So as the %s will give me the hypervisor FQDN it will looks like: > > live_migration_uri=qemu+tcp://compute0.mydomain.com-api/system > > and what I need is: > > live_migration_uri=qemu+tcp://compute0-api.mydomain.com/system > > AFAIK there is no way to give it the host part of the FQDN only like a %h for > example. > > Thanks for your help. > > Romain > > -----Original Message----- > From: gustavo panizzo (gfa) [mailto:g...@zumbi.com.ar] > Sent: jeudi 2 juillet 2015 08:46 > To: Aviolat Romain; openstack@lists.openstack.org > Subject: Re: [Openstack] Openstack live migration and multiple > interfaces / fqdn > > asuming you are using libvirt as hypervisor you can change this on > nova.conf on the computes > > # Migration target URI (any included "%s" is replaced with the # > migration target hostname) (string value) > #live_migration_uri=qemu+tcp://%s/system > > set something like > live_migration_uri=qemu+tcp://%s-api/system > > > On 2015-07-02 14:24, Aviolat Romain wrote: >> Hi, >> >> I have some troubles with the live migration mechanism of OpenStack and my >> setup: >> >> Our compute nodes have two types interfaces with different things running on >> top of them. >> >> 1GbE interface: >> - interface to access the hypervisor OS >> - hypervisor access to the core infra services (dns, ntp, syslog, ...). The >> FQDN of the compute node is bound to the IP of this interface, let's say >> compute0.mydomain.com, compute1.mydomain.com, ... >> >> 10 GbE interfaces: >> - redundant network, internal to the openstack cloud >> - multiple VLANs on top of it to segregate the different services >> - api / db >> - CEPH cluster network >> - CEPH public network >> - ... >> - A second FQDN is bound to the api / db interface IP address, let's >> say compute0-api.mydomain.com >> >> Problem is that when I want to live migrate instance, the Nova driver tries >> to connect to the compute0.mydomain.com IP address. It's working but it's >> far from ideal (slow network, not redundant, not designed to move internal >> OpenStack network flows, ...). Ideally I'd like to be able to use the FQDN >> that is bound to the api / db network. >> >> It seems that there is no option on nova to set a specific fqdn for the ssh >> live migration, maybe the solution would be to code it ? >> >> Suggestions are welcome ! >> >> Thanks for your help, >> >> Romain >> >> Romain Aviolat >> Senior System Administrator >> R&D and Ops Infrastructure >> Kudelski Security - Kudelski Group >> Rte de Genève 22-24, >> 1033 Cheseaux >> SWITZERLAND >> +41 21 732 03 79 >> >> >> >> _______________________________________________ >> Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> Post to : openstack@lists.openstack.org >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> > > -- > 1AE0 322E B8F7 4717 BDEA BF1D 44BB 1BA7 9F6C 6333 > > keybase: http://keybase.io/gfa > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > -- 1AE0 322E B8F7 4717 BDEA BF1D 44BB 1BA7 9F6C 6333 keybase: http://keybase.io/gfa _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
