Impossible de démarrer l'instance: l'allocation de périphérique nbd a échoué
J'ai utilisé AutoPilot pour faire une installation d'OpenStack. sur quelques nœuds de calcul lorsque j'essaye de provisionner le VM j'obtiens l'erreur suivante dans nova-compute.log
2015-05-14 19:38:07.807 7494 WARNING nova.virt.disk.mount.nbd [-] No free nbd devices
2015-05-14 19:38:07.807 7494 INFO nova.virt.disk.mount.api [-] Device allocation failed. Will retry in 2 seconds.
2015-05-14 19:38:22.884 7494 ERROR nova.network.linux_net [-] Unable to execute ['ovs-vsctl', '--timeout=120', '--', '--if-exists', 'del-port', u'qvo6a2b71b0-f4', '--', 'add-port', 'br-int', u'qvo6a2b71b0-f4', '--', 'set', 'Interface', u'qvo6a2b71b0-f4', u'external-ids:iface-id=6a2b71b0-f4dd-4346-8ce3-cf37d3bee46a', 'external-ids:iface-status=active', u'external-ids:attached-mac=fa:16:3e:eb:dd:ae', 'external-ids:vm-uuid=4fc5ca8c-d353-4e3d-b953-998eb6b32370']. Exception: Unexpected error while running command.
Command: Sudo nova-rootwrap /etc/nova/rootwrap.conf ovs-vsctl --timeout=120 -- --if-exists del-port qvo6a2b71b0-f4 -- add-port br-int qvo6a2b71b0-f4 -- set Interface qvo6a2b71b0-f4 external-ids:iface-id=6a2b71b0-f4dd-4346-8ce3-cf37d3bee46a external-ids:iface-status=active external-ids:attached-mac=fa:16:3e:eb:dd:ae external-ids:vm-uuid=4fc5ca8c-d353-4e3d-b953-998eb6b32370
Exit code: 1
Stdout: u''
Stderr: u'2015-05-14T19:38:22Z|00002|reconnect|WARN|unix:/var/run/openvswitch/db.sock: connection attempt failed (Protocol error)\novs-vsctl: unix:/var/run/openvswitch/db.sock: database connection failed (Protocol error)\n'
2015-05-14 19:38:22.885 7494 ERROR nova.compute.manager [-] [instance: 4fc5ca8c-d353-4e3
Toute aide serait appréciée.
Configuration de l'environnement, en pilote automatique j'ai configuré: KVM, Open vSwitch, Ceph, Ceph.
Voici mon statut de juju paysage:
landscape@juju-machine-0-lxc-2:~$ juju status
environment: "1"
machines:
"0":
agent-state: started
agent-version: 1.22.1
dns-name: dumbledor.maas
instance-id: /MAAS/api/1.0/nodes/node-89fd853a-f5c3-11e4-bf21-0015c5607ff0/
series: trusty
containers:
0/lxc/0:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.150
instance-id: juju-machine-0-lxc-0
series: trusty
hardware: Arch=AMD64
0/lxc/1:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.151
instance-id: juju-machine-0-lxc-1
series: trusty
hardware: Arch=AMD64
hardware: Arch=AMD64 cpu-cores=4 mem=8192M
state-server-member-status: has-vote
"1":
agent-state: started
agent-version: 1.22.1
dns-name: malfoy.maas
instance-id: /MAAS/api/1.0/nodes/node-a91bece8-f50c-11e4-b4ed-0015c5607ff0/
series: trusty
containers:
1/lxc/0:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.158
instance-id: juju-machine-1-lxc-0
series: trusty
hardware: Arch=AMD64
1/lxc/1:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.159
instance-id: juju-machine-1-lxc-1
series: trusty
hardware: Arch=AMD64
hardware: Arch=AMD64 cpu-cores=4 mem=8192M
"2":
agent-state: started
agent-version: 1.22.1
dns-name: voldemort.maas
instance-id: /MAAS/api/1.0/nodes/node-bcc0e8c6-f515-11e4-b4ed-0015c5607ff0/
series: trusty
containers:
2/lxc/0:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.153
instance-id: juju-machine-2-lxc-0
series: trusty
hardware: Arch=AMD64
2/lxc/1:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.154
instance-id: juju-machine-2-lxc-1
series: trusty
hardware: Arch=AMD64
2/lxc/2:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.156
instance-id: juju-machine-2-lxc-2
series: trusty
hardware: Arch=AMD64
hardware: Arch=AMD64 cpu-cores=2 mem=4096M
"3":
agent-state: started
agent-version: 1.22.1
dns-name: weasley.maas
instance-id: /MAAS/api/1.0/nodes/node-70ff0c70-f550-11e4-bf17-0015c5607ff0/
series: trusty
containers:
3/lxc/0:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.160
instance-id: juju-machine-3-lxc-0
series: trusty
hardware: Arch=AMD64
3/lxc/1:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.161
instance-id: juju-machine-3-lxc-1
series: trusty
hardware: Arch=AMD64
3/lxc/2:
agent-state: started
agent-version: 1.22.1
dns-name: 10.10.1.162
instance-id: juju-machine-3-lxc-2
series: trusty
hardware: Arch=AMD64
hardware: Arch=AMD64 cpu-cores=4 mem=32768M
services:
ceph:
charm: cs:trusty/ceph-31
can-upgrade-to: cs:trusty/ceph-36
exposed: false
relations:
client:
- cinder
- glance
- landscape-client
- nova-compute
juju-info:
- landscape-client
mon:
- ceph
osd:
- ceph-osd
radosgw:
- ceph-radosgw
units:
ceph/0:
agent-state: started
agent-version: 1.22.1
machine: "0"
public-address: dumbledor.maas
subordinates:
landscape-client/0:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: dumbledor.maas
ceph/1:
agent-state: started
agent-version: 1.22.1
machine: "2"
public-address: voldemort.maas
subordinates:
landscape-client/7:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: voldemort.maas
ceph/2:
agent-state: started
agent-version: 1.22.1
machine: "3"
public-address: weasley.maas
subordinates:
landscape-client/9:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: weasley.maas
ceph-osd:
charm: cs:trusty/ceph-osd-5
can-upgrade-to: cs:trusty/ceph-osd-10
exposed: false
relations:
juju-info:
- landscape-client
mon:
- ceph
units:
ceph-osd/0:
agent-state: started
agent-version: 1.22.1
machine: "1"
public-address: malfoy.maas
subordinates:
landscape-client/8:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: malfoy.maas
ceph-radosgw:
charm: cs:trusty/ceph-radosgw-8
can-upgrade-to: cs:trusty/ceph-radosgw-12
exposed: false
relations:
identity-service:
- keystone
juju-info:
- landscape-client
mon:
- ceph
units:
ceph-radosgw/0:
agent-state: started
agent-version: 1.22.1
machine: 3/lxc/2
open-ports:
- 80/tcp
public-address: 10.10.1.162
subordinates:
landscape-client/11:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.162
cinder:
charm: cs:trusty/cinder-10
can-upgrade-to: cs:trusty/cinder-23
exposed: false
relations:
amqp:
- rabbitmq-server
ceph:
- ceph
cinder-volume-service:
- nova-cloud-controller
cluster:
- cinder
identity-service:
- keystone
image-service:
- glance
juju-info:
- landscape-client
shared-db:
- mysql
units:
cinder/0:
agent-state: started
agent-version: 1.22.1
machine: 2/lxc/2
public-address: 10.10.1.156
subordinates:
landscape-client/16:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.156
glance:
charm: cs:trusty/glance-9
can-upgrade-to: cs:trusty/glance-20
exposed: false
relations:
amqp:
- rabbitmq-server
ceph:
- ceph
cluster:
- glance
identity-service:
- keystone
image-service:
- cinder
- nova-cloud-controller
- nova-compute
juju-info:
- landscape-client
shared-db:
- mysql
units:
glance/0:
agent-state: started
agent-version: 1.22.1
machine: 3/lxc/0
open-ports:
- 9292/tcp
public-address: 10.10.1.160
subordinates:
landscape-client/15:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.160
keystone:
charm: cs:trusty/keystone-9
can-upgrade-to: cs:trusty/keystone-25
exposed: false
relations:
cluster:
- keystone
identity-service:
- ceph-radosgw
- cinder
- glance
- neutron-api
- nova-cloud-controller
- openstack-dashboard
juju-info:
- landscape-client
shared-db:
- mysql
units:
keystone/0:
agent-state: error
agent-state-info: 'hook failed: "identity-service-relation-changed" for neutron-api:identity-service'
agent-version: 1.22.1
machine: 0/lxc/0
public-address: 10.10.1.150
subordinates:
landscape-client/4:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.150
landscape-client:
charm: cs:trusty/landscape-client-11
can-upgrade-to: cs:trusty/landscape-client-12
exposed: false
relations:
ceph-client:
- ceph
container:
- ceph
- ceph-osd
- ceph-radosgw
- cinder
- glance
- keystone
- mysql
- neutron-api
- neutron-gateway
- nova-cloud-controller
- nova-compute
- ntpmaster
- openstack-dashboard
- rabbitmq-server
subordinate-to:
- ceph
- ceph-osd
- ceph-radosgw
- cinder
- glance
- keystone
- mysql
- neutron-api
- neutron-gateway
- nova-cloud-controller
- nova-compute
- ntpmaster
- openstack-dashboard
- rabbitmq-server
mysql:
charm: cs:trusty/percona-cluster-13
can-upgrade-to: cs:trusty/percona-cluster-21
exposed: false
relations:
cluster:
- mysql
juju-info:
- landscape-client
shared-db:
- cinder
- glance
- keystone
- neutron-api
- neutron-gateway
- nova-cloud-controller
- nova-compute
units:
mysql/0:
agent-state: error
agent-state-info: 'hook failed: "config-changed"'
agent-version: 1.22.1
machine: 2/lxc/0
public-address: 10.10.1.153
subordinates:
landscape-client/10:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.153
neutron-api:
charm: cs:trusty/neutron-api-5
can-upgrade-to: cs:trusty/neutron-api-14
exposed: false
relations:
amqp:
- rabbitmq-server
cluster:
- neutron-api
identity-service:
- keystone
juju-info:
- landscape-client
neutron-api:
- nova-cloud-controller
neutron-plugin-api:
- neutron-openvswitch
shared-db:
- mysql
units:
neutron-api/0:
agent-state: started
agent-version: 1.22.1
machine: 1/lxc/0
open-ports:
- 9696/tcp
public-address: 10.10.1.158
subordinates:
landscape-client/13:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.158
neutron-gateway:
charm: cs:trusty/quantum-gateway-8
can-upgrade-to: cs:trusty/quantum-gateway-16
exposed: false
relations:
amqp:
- rabbitmq-server
cluster:
- neutron-gateway
juju-info:
- landscape-client
- ntp
quantum-network-service:
- nova-cloud-controller
shared-db:
- mysql
units:
neutron-gateway/0:
agent-state: started
agent-version: 1.22.1
machine: "0"
public-address: dumbledor.maas
subordinates:
landscape-client/1:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: dumbledor.maas
ntp/0:
upgrading-from: cs:trusty/ntp-6
agent-state: started
agent-version: 1.22.1
public-address: dumbledor.maas
neutron-openvswitch:
charm: cs:trusty/neutron-openvswitch-1
can-upgrade-to: cs:trusty/neutron-openvswitch-7
exposed: false
relations:
amqp:
- rabbitmq-server
neutron-plugin:
- nova-compute
neutron-plugin-api:
- neutron-api
subordinate-to:
- nova-compute
nova-cloud-controller:
charm: cs:trusty/nova-cloud-controller-50
can-upgrade-to: cs:trusty/nova-cloud-controller-56
exposed: false
relations:
amqp:
- rabbitmq-server
cinder-volume-service:
- cinder
cloud-compute:
- nova-compute
cluster:
- nova-cloud-controller
identity-service:
- keystone
image-service:
- glance
juju-info:
- landscape-client
neutron-api:
- neutron-api
quantum-network-service:
- neutron-gateway
shared-db:
- mysql
units:
nova-cloud-controller/0:
agent-state: started
agent-version: 1.22.1
machine: 2/lxc/1
open-ports:
- 3333/tcp
- 8773/tcp
- 8774/tcp
- 9696/tcp
public-address: 10.10.1.154
subordinates:
landscape-client/17:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.154
nova-compute:
charm: cs:trusty/nova-compute-11
can-upgrade-to: cs:trusty/nova-compute-24
exposed: false
relations:
amqp:
- rabbitmq-server
ceph:
- ceph
cloud-compute:
- nova-cloud-controller
compute-peer:
- nova-compute
image-service:
- glance
juju-info:
- landscape-client
- ntp
neutron-plugin:
- neutron-openvswitch
shared-db:
- mysql
units:
nova-compute/0:
agent-state: error
agent-state-info: 'hook failed: "cloud-compute-relation-changed" for nova-cloud-controller:cloud-compute'
agent-version: 1.22.1
machine: "1"
public-address: malfoy.maas
subordinates:
landscape-client/3:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: malfoy.maas
neutron-openvswitch/0:
upgrading-from: cs:trusty/neutron-openvswitch-1
agent-state: started
agent-version: 1.22.1
public-address: malfoy.maas
ntp/1:
upgrading-from: cs:trusty/ntp-6
agent-state: started
agent-version: 1.22.1
public-address: malfoy.maas
nova-compute/1:
agent-state: error
agent-state-info: 'hook failed: "cloud-compute-relation-changed" for nova-cloud-controller:cloud-compute'
agent-version: 1.22.1
machine: "2"
public-address: voldemort.maas
subordinates:
landscape-client/5:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: voldemort.maas
neutron-openvswitch/1:
upgrading-from: cs:trusty/neutron-openvswitch-1
agent-state: started
agent-version: 1.22.1
public-address: voldemort.maas
ntp/2:
upgrading-from: cs:trusty/ntp-6
agent-state: started
agent-version: 1.22.1
public-address: voldemort.maas
nova-compute/2:
agent-state: started
agent-version: 1.22.1
machine: "3"
public-address: weasley.maas
subordinates:
landscape-client/6:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: weasley.maas
neutron-openvswitch/2:
upgrading-from: cs:trusty/neutron-openvswitch-1
agent-state: started
agent-version: 1.22.1
public-address: weasley.maas
ntp/3:
upgrading-from: cs:trusty/ntp-6
agent-state: started
agent-version: 1.22.1
public-address: weasley.maas
ntp:
charm: cs:trusty/ntp-6
can-upgrade-to: cs:trusty/ntp-8
exposed: false
relations:
juju-info:
- neutron-gateway
- nova-compute
master:
- ntpmaster
subordinate-to:
- neutron-gateway
- nova-compute
ntpmaster:
charm: cs:trusty/ntpmaster-2
exposed: false
relations:
juju-info:
- landscape-client
master:
- ntp
peer:
- ntpmaster
units:
ntpmaster/0:
agent-state: started
agent-version: 1.22.1
machine: 0/lxc/1
open-ports:
- 123/udp
public-address: 10.10.1.151
subordinates:
landscape-client/2:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.151
openstack-dashboard:
charm: cs:trusty/openstack-dashboard-8
can-upgrade-to: cs:trusty/openstack-dashboard-14
exposed: false
relations:
cluster:
- openstack-dashboard
identity-service:
- keystone
juju-info:
- landscape-client
units:
openstack-dashboard/0:
agent-state: started
agent-version: 1.22.1
machine: 1/lxc/1
open-ports:
- 80/tcp
- 443/tcp
public-address: 10.10.1.159
subordinates:
landscape-client/14:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.159
rabbitmq-server:
charm: cs:trusty/rabbitmq-server-24
can-upgrade-to: cs:trusty/rabbitmq-server-32
exposed: false
relations:
amqp:
- cinder
- glance
- neutron-api
- neutron-gateway
- neutron-openvswitch
- nova-cloud-controller
- nova-compute
cluster:
- rabbitmq-server
juju-info:
- landscape-client
units:
rabbitmq-server/0:
agent-state: started
agent-version: 1.22.1
machine: 3/lxc/1
open-ports:
- 5672/tcp
public-address: 10.10.1.161
subordinates:
landscape-client/12:
upgrading-from: cs:trusty/landscape-client-11
agent-state: started
agent-version: 1.22.1
public-address: 10.10.1.161
networks:
maas-eth1:
provider-id: maas-eth1
cidr: 10.10.0.0/16
J'ai vu ce problème lorsque les nœuds de calcul ne peuvent pas résoudre leur propre nom d'hôte lorsque les commandes Sudo sont exécutées, entraînant une sortie stderr qui rompt la plupart de l'analyse des commandes entre nova et neutron.
Vous pouvez le vérifier en exécutant:
Sudo su -
sur n'importe quel nœud de calcul - si vous obtenez un message de type "impossible à résoudre", c'est le problème.
Cela indique normalement une sorte de mauvaise configuration dans la configuration DNS dans MAAS