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[Launchpad Bug Tracker <1564197@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1564197

Title:
  Nova should have the ability to retrieve host IP when live migrating

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Currently, when live migrate instances, if user didn't provide
  live_migration_inbound_addr, nova will default use destination
  hostname as the migration destination for operations such as copy
  disks.

  The translation of hostname to IP is actually depend on the under
  layer OS or DNS services, for example, we have to add Our hosts to
  /etc/hosts in Linux to make it work.

  As it is not hard for nova to get the actual IP of destination node,
  we can really use the IP directly for the migration operations.

   2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Acquired semaphore "neutron_admin_auth_token_lock"
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Releasing semaphore "neutron_admin_auth_token_lock"
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: REQ: curl -g -i --insecure -X GET https://network.localdomain.com:8020/v2.0/ports.json?network_id=84e366d8-0666-4535-ab6a-84083d437fe3&device_owner=network%3Adhcp -H "User-Agent: python-neutronclient" -H "Accept: application/json" -H "X-Auth-Token: {SHA1}7450fe17d1687d3de24555c18d4444bffc1ac5bb"
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: RESP: [200] date: Wed, 30 Mar 2016 08:53:25 GMT connection: close content-type: application/json; charset=UTF-8 content-length: 912 x-openstack-request-id: req-e5cf52c1-8fbe-4ac4-bf86-1b2c9e027187
  RESP BODY: {"ports": [{"status": "ACTIVE", "binding:host_id": "13EB9F4A-1DD2-11B2-9C27-000000821800", "allowed_address_pairs": [], "extra_dhcp_opts": [], "dns_assignment": [{"hostname": "host-172-28-12-13", "ip_address": "172.28.12.13", "fqdn": "host-172-28-12-13.openstacklocal."}], "device_owner": "network:dhcp", "binding:profile": {}, "fixed_ips": [{"subnet_id": "6fc84713-11aa-4466-bdd7-c6e3a57b80a3", "ip_address": "172.28.12.13"}], "id": "4d8f409f-0757-47fa-a121-5739a06ce826", "security_groups": [], "device_id": "dhcp3935b1d9-07ab-53ad-8236-cb16c36bf22d-84e366d8-0666-4535-ab6a-84083d437fe3", "name": "", "admin_state_up": true, "network_id": "84e366d8-0666-4535-ab6a-84083d437fe3", "dns_name": "", "binding:vif_details": {"port_filter": true, "ovs_hybrid_plug": true}, "binding:vnic_type": "normal", "binding:vif_type": "ovs", "tenant_id": "5d4054a226234b0180033ef6b74b5719", "mac_address": "fa:16:3e:5a:7d:3d"}]}
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Updating instance_info_cache with network_info: [VIF({'profile': {}, 'ovs_interfaceid': u'ef95f1d6-ca21-4eec-a46b-01eba583de59', 'preserve_on_delete': False, 'network': Network({'bridge': 'br-int', 'subnets': [Subnet({'ips': [FixedIP({'meta': {}, 'version': 4, 'type': 'fixed', 'floating_ips': [], 'address': u'172.28.12.21'})], 'version': 4, 'meta': {'dhcp_server': u'172.28.12.13'}, 'dns': [IP({'meta': {}, 'version': 4, 'type': 'dns', 'address': u'172.28.11.34'})], 'routes': [], 'cidr': u'172.28.0.0/20', 'gateway': IP({'meta': {}, 'version': 4, 'type': 'gateway', 'address': u'172.28.0.1'})})], 'meta': {'injected': False, 'tenant_id': u'5d4054a226234b0180033ef6b74b5719'}, 'id': u'84e366d8-0666-4535-ab6a-84083d437fe3', 'label': u'internal_base'}), 'devname': u'tapef95f1d6-ca', 'vnic_type': u'normal', 'qbh_params': None, 'meta': {}, 'details': {u'port_filter': True, u'ovs_hybrid_plug': True}, 'address': u'fa:16:3e:13:a9:8f', 'active': True, 'type': u'ovs', 'id': u'ef95f1d6-ca21-4eec-a46b-01eba583de59', 'qbg_params': None})]
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Releasing semaphore "refresh_cache-6fac2a74-619c-4021-ab49-e406a3171897"
  2016-03-30T16:53:25+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Updated the network info_cache for instance
  2016-03-30T16:53:26+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Running periodic task ComputeManager._reclaim_queued_deletes
  2016-03-30T16:53:26+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: CONF.reclaim_instance_interval <= 0, skipping...
  2016-03-30T16:53:27+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Running periodic task ComputeManager._instance_usage_audit
  2016-03-30T16:53:29+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Running periodic task ComputeManager._sync_scheduler_instance_info
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Starting monitoring of live migration
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Increasing downtime to 46ms after 0 sec elapsed time

  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-
  compute: Live Migration failure: operation failed: Failed to connect
  to remote libvirt URI qemu+tcp://13EB9F4A-
  1DD2-11B2-9C27-000000821800/system: Unable to resolve address
  '13EB9F4A-1DD2-11B2-9C27-000000821800' service '16509': Name or
  service not known

  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Migration operation thread notification
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Migration running for 0 secs, memory 100% remaining; (bytes processed=0, remaining=0, total=0)
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: VM running on src, migration failed
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Fixed incorrect job type to be 4
  2016-03-30T16:53:59+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Migration operation has aborted
  2016-03-30T16:54:00+08:00 13CC40D2-1DD2-11B2-9C27-000000821800 nova-compute: Live migration monitoring is all done

  As seen in above Error Log, the host 13EB9F4A-
  1DD2-11B2-9C27-000000821800 cannot be retrieved if we didn't add it to
  /etc/host.

  We can simply pass the destination host IP in migrate data.

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