Update: 1. Job fails from time to time, I'm collecting statistics to understand whether it is valid fails or some races, etc. 2. This sounds good:
> jogo has had a patch up for this for awhile: > https://review.openstack.org/#/c/165233/ 3. It's required more research: > We already have a voting ceph job for nova - can we turn that into a > multi-node testing job and run live migration with shared storage using > that? 4. I think no: there is a branch in execution flow that could be checked, when we have shared instance path only. > Can't we use a multi-node ceph job (#3) for this? On Wed, Aug 26, 2015 at 6:18 PM, Matt Riedemann <mrie...@linux.vnet.ibm.com> wrote: > > > On 8/26/2015 3:21 AM, Timofei Durakov wrote: > >> Hello, >> >> Here is the situation: nova has live-migration feature but doesn't have >> ci job to cover it by functional tests, only >> gate-tempest-dsvm-multinode-full(non-voting, btw), which covers >> block-migration only. >> The problem here is, that live-migration could be different, depending >> on how instance was booted(volume-backed/ephemeral), how environment is >> configured(is shared instance directory(NFS, for example), or RBD used >> to store ephemeral disk), or for example user don't have that and is >> going to use --block-migrate flag. To claim that we have reliable >> live-migration in nova, we should check it at least on envs with rbd or >> nfs as more popular than envs without shared storages at all. >> Here is the steps for that: >> >> 1. make gate-tempest-dsvm-multinode-full voting, as it looks OK for >> block-migration testing purposes; >> > > If it's been stable for awhile then I'd be OK with making it voting on > nova changes, I agree it's important to have at least *something* that > gates on multi-node testing for nova since we seem to break this a few > times per release. > > 2. contribute to tempest to cover volume-backed instances live-migration; >> > > jogo has had a patch up for this for awhile: > > https://review.openstack.org/#/c/165233/ > > Since it's not full time on openstack anymore I assume some help there in > picking up the change would be appreciated. > > 3. make another job with rbd for storing ephemerals, it also requires >> changing tempest config; >> > > We already have a voting ceph job for nova - can we turn that into a > multi-node testing job and run live migration with shared storage using > that? > > 4. make job with nfs for ephemerals. >> > > Can't we use a multi-node ceph job (#3) for this? > > >> These steps should help us to improve current situation with >> live-migration. >> >> -- >> Timofey. >> >> >> >> __________________________________________________________________________ >> OpenStack Development Mailing List (not for usage questions) >> Unsubscribe: >> openstack-dev-requ...@lists.openstack.org?subject:unsubscribe >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > -- > > Thanks, > > Matt Riedemann > > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >
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