Public bug reported: Disabling a host in horizon and live-migrating instances off fail with the following error if the instances are created with a single boot command. eg. create 10 cirros instances through the horizon dashboard. The instances are all KVM and backed by Cinder Volumes.
2017-09-19 19:02:30.588 19741 DEBUG nova.scheduler.filter_scheduler [req-4268ea83-0657-40cc-961b-f0ae9fb3019e 385c60230b3f49da930dda4d089eda6b 723aa12337a44f818b6d1e1a59f16e49 - default default] There are 1 hosts available but 10 instances requested to build. select_destinations /usr/lib/python2.7/dist- packages/nova/scheduler/filter_scheduler.py:101 Steps to reproduce: 1. Create 10 instances via the horizon dashboard at the same time. 2. Set a compute host disabled. 3. Choose the migrate host option and select live-migrate as the method. 4. The live migration will fail all after passing the scheduler with the error above. NOTE: Creating 10 separate instances with individual "openstack server create" commands or running the launch instance 10 times in horizon does not produce the same result and the scheduler will evacuate the host as expected. Nova version on controller: ii nova-api 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - API frontend ii nova-common 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - common files ii nova-conductor 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - conductor service ii nova-consoleauth 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - Console Authenticator ii nova-novncproxy 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - NoVNC proxy ii nova-placement-api 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - placement API frontend ii nova-scheduler 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - virtual machine scheduler ii python-nova 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute Python libraries ii python-novaclient ** Affects: nova Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1718455 Title: [pike] Nova host disable and Live Migrate all instances fail. Status in OpenStack Compute (nova): New Bug description: Disabling a host in horizon and live-migrating instances off fail with the following error if the instances are created with a single boot command. eg. create 10 cirros instances through the horizon dashboard. The instances are all KVM and backed by Cinder Volumes. 2017-09-19 19:02:30.588 19741 DEBUG nova.scheduler.filter_scheduler [req-4268ea83-0657-40cc-961b-f0ae9fb3019e 385c60230b3f49da930dda4d089eda6b 723aa12337a44f818b6d1e1a59f16e49 - default default] There are 1 hosts available but 10 instances requested to build. select_destinations /usr/lib/python2.7/dist- packages/nova/scheduler/filter_scheduler.py:101 Steps to reproduce: 1. Create 10 instances via the horizon dashboard at the same time. 2. Set a compute host disabled. 3. Choose the migrate host option and select live-migrate as the method. 4. The live migration will fail all after passing the scheduler with the error above. NOTE: Creating 10 separate instances with individual "openstack server create" commands or running the launch instance 10 times in horizon does not produce the same result and the scheduler will evacuate the host as expected. Nova version on controller: ii nova-api 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - API frontend ii nova-common 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - common files ii nova-conductor 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - conductor service ii nova-consoleauth 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - Console Authenticator ii nova-novncproxy 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - NoVNC proxy ii nova-placement-api 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - placement API frontend ii nova-scheduler 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute - virtual machine scheduler ii python-nova 2:16.0.0-0ubuntu1~cloud0 all OpenStack Compute Python libraries ii python-novaclient To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1718455/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp