Open Stack

Hello,
Update for gate-tempest-dsvm-multinode-full job.
Here is top 12 failing tests in weekly period:
tempest.api.compute.servers.test_disk_config.ServerDiskConfigTestJSON.test_resize_server_from_manual_to_auto:
14
tempest.api.compute.servers.test_disk_config.ServerDiskConfigTestJSON.test_resize_server_from_auto_to_manual:
14
tempest.scenario.test_server_advanced_ops.TestServerAdvancedOps.test_resize_server_confirm:
12
tempest.api.compute.servers.test_server_actions.ServerActionsTestJSON.test_resize_server_revert:
12
tempest.api.compute.servers.test_server_actions.ServerActionsTestJSON.test_resize_server_confirm:
12
tempest.api.compute.admin.test_live_migration.LiveBlockMigrationTestJSON.test_live_block_migration_paused:
12
tempest.api.compute.servers.test_delete_server.DeleteServersTestJSON.test_delete_server_while_in_verify_resize_state:
12
tempest.api.compute.admin.test_migrations.MigrationsAdminTest.test_list_migrations_in_flavor_resize_situation:
12
tempest.api.compute.servers.test_server_actions.ServerActionsTestJSON.test_resize_server_confirm_from_stopped:
12
tempest.scenario.test_volume_boot_pattern.TestVolumeBootPatternV2.test_volume_boot_pattern:
10
tempest.scenario.test_volume_boot_pattern.TestVolumeBootPattern.test_volume_boot_pattern:
10
tempest.api.compute.admin.test_live_migration.LiveBlockMigrationTestJSON.test_live_block_migration:
10


Full list of failing tests: http://xsnippet.org/360947/


On Fri, Aug 28, 2015 at 12:14 AM, Kraminsky, Arkadiy <
arkadiy.kraminsky at hp.com> wrote:

> Hello,
>
> I'm a new developer on the Openstack project and am in the process of
> creating live migration CI for HP's 3PAR and Lefthand backends. I noticed
> you guys are looking for someone to pick up Joe Gordon's change for volume
> backed live migration tests and we can sure use something like this. I can
> take a look into the change, and see what I can do. :)
>
> Thanks,
>
> Arkadiy Kraminsky
> ________________________________
> From: Joe Gordon [joe.gordon0 at gmail.com]
> Sent: Wednesday, August 26, 2015 9:26 AM
> To: OpenStack Development Mailing List (not for usage questions)
> Subject: Re: [openstack-dev] [nova] CI for reliable live-migration
>
>
>
> On Wed, Aug 26, 2015 at 8:18 AM, Matt Riedemann <
> mriedem at linux.vnet.ibm.com<mailto:mriedem at 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;
>
> When we are ready to make multinode voting we should remove the equivalent
> single node job.
>
>
> 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.
>
> Last I checked it isn't as stable is single node yet:
> http://jogo.github.io/gate/multinode [0].  The data going into graphite
> is a bit noisy so this may be a red herring, but at the very least it needs
> to be investigated. When I was last looking into this there were at least
> two known bugs:
>
> https://bugs.launchpad.net/nova/+bug/1445569
> <https://bugs.launchpad.net/nova/+bug/1445569>
> https://bugs.launchpad.net/nova/+bug/1462305
>
>
> [0]
> http://graphite.openstack.org/graph/?from=-36hours&height=500&until=now&width=800&bgcolor=ffffff&fgcolor=000000&yMax=100&yMin=0&target=color(alias(movingAverage(asPercent(stats.zuul.pipeline.check.job.gate-tempest-dsvm-full.FAILURE,sum(stats.zuul.pipeline.check.job.gate-tempest-dsvm-full.{SUCCESS,FAILURE})),%275hours%27),%20%27gate-tempest-dsvm-full%27),%27orange%27)&target=color(alias(movingAverage(asPercent(stats.zuul.pipeline.check.job.gate-tempest-dsvm-multinode-full.FAILURE,sum(stats.zuul.pipeline.check.job.gate-tempest-dsvm-multinode-full.{SUCCESS,FAILURE})),%275hours%27),%20%27gate-tempest-dsvm-multinode-full%27),%27brown%27)&title=Check%20Failure%20Rates%20(36%20hours)&_t=0.48646087432280183
> <
> http://graphite.openstack.org/graph/?from=-36hours&height=500&until=now&width=800&bgcolor=ffffff&fgcolor=000000&yMax=100&yMin=0&target=color(alias(movingAverage(asPercent(stats.zuul.pipeline.check.job.gate-tempest-dsvm-full.FAILURE,sum(stats.zuul.pipeline.check.job.gate-tempest-dsvm-full.%7BSUCCESS,FAILURE%7D)),%275hours%27),%20%27gate-tempest-dsvm-full%27),%27orange%27)&target=color(alias(movingAverage(asPercent(stats.zuul.pipeline.check.job.gate-tempest-dsvm-multinode-full.FAILURE,sum(stats.zuul.pipeline.check.job.gate-tempest-dsvm-multinode-full.%7BSUCCESS,FAILURE%7D)),%275hours%27),%20%27gate-tempest-dsvm-multinode-full%27),%27brown%27)&title=Check%20Failure%20Rates%20(36%20hours)&_t=0.48646087432280183
> >
>
>
>  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.
>
> yes please
>
>
>  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.
>
>
>
> __________________________________________________________________________
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>
> --
>
> Thanks,
>
> Matt Riedemann
>
>
> __________________________________________________________________________
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