Open Stack

I had also some trouble getting volume backed instances to boot. I use  
xen hypervisor and found out that the instance was assigned a device  
name of "vda" (which is set by default) instead of xvda, I filed a bug  
report for this. Have you nova-compute.logs? I can't find them in your  
link. They should give a hint about the device name or other possible  
causes. Since the volume is created but immediately destroyed, I guess  
nova has a problem with the block device.

Regards,
Eugen

Zitat von Turbo Fredriksson <turbo at bayour.com>:

> I'm trying my newly installed Openstack system and I'm getting
> problem in starting my first instance.
>
> ----- s n i p -----
> Build of instance 5193c2d9-0aaf-4f84-b108-f6884d97b571 aborted:  
> Block Device Mapping is Invalid.
> File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py",  
> line 1926, in _do_build_and_run_instance filter_properties) File  
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line  
> 2083, in _build_and_run_instance 'create.error', fault=e) File  
> "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 220,  
> in __exit__ self.force_reraise() File  
> "/usr/lib/python2.7/dist-packages/oslo_utils/excutils.py", line 196,  
> in force_reraise six.reraise(self.type_, self.value, self.tb) File  
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line  
> 2048, in _build_and_run_instance block_device_mapping) as resources:  
> File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__  
> return self.gen.next() File  
> "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line  
> 2206, in _build_resources reason=e.format_message())
> ----- s n i p -----
>
> Cleaning up all the logs for irrelevant stuff, I see:
>
> ----- s n i p -----
> INFO cinder.api.v2.volumes  Create volume of 5 GB
> INFO cinder.volume.api  Volume created successfully.
> INFO cinder.volume.flows.manager.create_volume  Volume  
> 6b1dace4-78e1-452b-a455-c0fc882374f3: being created as image with  
> specification: {'status': u'creating', 'image_location': (None,  
> None), 'volume_size': 5, 'volume_name':  
> 'volume-6b1dace4-78e1-452b-a455-c0fc882374f3', 'image_id':  
> u'8c15b5e8-9a67-4784-ad7a-0b1cc7b0bdec', 'image_service':  
> <cinder.image.glance.GlanceImageService object at 0x7fa4f31d8ad0>,  
> 'image_meta': {'status': u'active', 'name': u'fedora23', 'deleted':  
> False, 'container_format': u'docker', 'created_at':  
> datetime.datetime(2016, 6, 15, 20, 38, 43, tzinfo=<iso8601.Utc>),  
> 'disk_format': u'qcow2', 'updated_at': datetime.datetime(2016, 6,  
> 15, 20, 38, 45, tzinfo=<iso8601.Utc>), 'id':  
> u'8c15b5e8-9a67-4784-ad7a-0b1cc7b0bdec', 'owner':  
> u'd524c8dfd9e9449798ebac9b025f8de6', 'min_ram': 0, 'checksum':  
> u'38d62e2e1909c89f72ba4d5f5c0005d5', 'min_disk': 0, 'is_public':  
> True, 'deleted_at': None, 'properties': {u'hypervisor_type':  
> u'docker', u'architecture': u'x86_64'}, 'size': 23436
>  3392}}
> INFO cinder.image.image_utils  Image download 223.00 MB at 35.35 MB/s
> WARN manila.context [-] Arguments dropped when creating context:  
> {u'read_only': False, u'domain': None, u'show_deleted': False,  
> u'user_identity': u'- - - - -', u'project_domain': None,  
> u'resource_uuid': None, u'user_domain': None}.
> WARN manila.context [-] Arguments dropped when creating context:  
> {u'read_only': False, u'domain': None, u'show_deleted': False,  
> u'user_identity': u'- - - - -', u'project_domain': None,  
> u'resource_uuid': None, u'user_domain': None}.
> INFO cinder.image.image_utils  Converted 3072.00 MB image at 31.59 MB/s
> INFO cinder.volume.flows.manager.create_volume  Volume  
> volume-6b1dace4-78e1-452b-a455-c0fc882374f3  
> (6b1dace4-78e1-452b-a455-c0fc882374f3): created successfully
> INFO cinder.volume.manager  Created volume successfully.
> INFO cinder.api.v2.volumes  Delete volume with id:  
> 6b1dace4-78e1-452b-a455-c0fc882374f3
> INFO cinder.volume.api  Delete volume request issued successfully.
> INFO eventlet.wsgi.server  10.0.4.5 "DELETE  
> /v2/d524c8dfd9e9449798ebac9b025f8de6/volumes/6b1dace4-78e1-452b-a455-c0fc882374f3 HTTP/1.1" status: 202  len: 211 time:  
> 0.1300900
> INFO cinder.volume.targets.iscsi  Skipping remove_export. No  
> iscsi_target is presently exported for volume:  
> 6b1dace4-78e1-452b-a455-c0fc882374f3
> INFO cinder.volume.utils  Performing secure delete on volume:  
> /dev/mapper/blade_center-volume--6b1dace4--78e1--452b--a455--c0fc882374f3
> ----- s n i p -----
>
> Full log at http://bayour.com/misc/openstack_instance_create-log.txt.
>
>
> The web GUI say (this might be from another test, but I always
> get the same):
>
> ----- s n i p -----
> Error: Failed to perform requested operation on instance
> "jessie-test", the instance has an error status: Please try again
> later [Error: Build of instance a4e1deaa-cdf0-4fc7-8c54-579868c962c3
> aborted: Block Device Mapping is Invalid.].
> ----- s n i p -----
>
>
>
> I can see nothing relevant in this that would make it fail!
> The only thing that bought my eye was that it isn't removing
> the iSCSI target, because there isn't one..
>
> This is (most of) my cinder.conf file:
>
> ----- s n i p -----
> [DEFAULT]
> my_ip = 10.0.4.1
> storage_availability_zone = nova
> default_availability_zone = nova
> enabled_backends = lvm
> iscsi_target_prefix = iqn.2010-10.org.openstack:
> iscsi_ip_address = $my_ip
> iscsi_port = 3260
> iscsi_iotype = blockio
> iscsi_write_cache = on
> volume_group = blade_center
> scheduler_driver = cinder.scheduler.filter_scheduler.FilterScheduler
>
> [lvm]
> volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
> volume_group = blade_center
> iscsi_protocol = iscsi
> iscsi_helper = tgtadm
> ----- s n i p -----
>
>
> PS. Creating the instance from an already existing, empty
>     volume, didn't work either. Same message, and even less
>     information in the log.
> --
> As soon as you find a product that you really like,
> they will stop making it.
> - Wilson's Law
>
>
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Eugen Block                             voice   : +49-40-559 51 75
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