openstack team mailing list archive

[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

a snapshot and an image are the same. The only difference is a piece of metadata saying what instance the snapshot came from.

Vish

On Aug 27, 2012, at 6:06 AM, Alessandro Tagliapietra <tagliapietra.alessandro@xxxxxxxxx> wrote:

> Btw, using
> 
> nova image-create --poll 4dcd5bb6-c65b-47dd-9c87-ba3fed624e22 "Instance"
> 
> works fine (nova command is run on 1st node), just it creates a new image and not a snapshot.
> 
> Best
> 
> -- 
> Alessandro Tagliapietra | VISup srl
> piazza 4 novembre 7
> 20124 Milano
> 
> http://www.visup.it
> 
> Il giorno 26/ago/2012, alle ore 18:49, Alessandro Tagliapietra <tagliapietra.alessandro@xxxxxxxxx> ha scritto:
> 
>> 
>> Il giorno 25/ago/2012, alle ore 01:15, Vishvananda Ishaya <vishvananda@xxxxxxxxx> ha scritto:
>> 
>>> Actually it looks like a different error. For some reason container format is being sent in as none on the second node.
>>> 
>>> Is it possible the original image that you launched the vm from has been deleted? For some reason it can't determine the container format.
>> 
>> Nope, the image from which the instance has been created is still there.
>> 
>>> 
>>> If not, can you also make sure that your versions of glance and python-glanceclient are the same on both nodes?
>>> 
>>> you should be able to do `pip freeze` to see the installed versions.
>> 
>> I'm using the latest version from ubuntu 12.04 repo, btw, i can see only:
>> 
>> glance==2012.1
>> 
>> from pip freeze, no python-glanceclient there.
>> 
>>> 
>>> 
>>> Vish
>>> 
>>> On Aug 24, 2012, at 12:10 AM, Alessandro Tagliapietra <tagliapietra.alessandro@xxxxxxxxx> wrote:
>>> 
>>>> Hi Vish,
>>>> 
>>>> I had already a setting:
>>>> 
>>>> glance_api_servers=10.0.0.1:9292
>>>> 
>>>> i've also tried to add
>>>> 
>>>> glance_host=10.0.0.1
>>>> 
>>>> but i got the same error.. Also, after changing configuration and restarting nova-compute restarts all instances, is that normal?
>>>> 
>>>> Best
>>>> 
>>>> Alessandro
>>>> 
>>>> Il giorno 23/ago/2012, alle ore 20:24, Vishvananda Ishaya <vishvananda@xxxxxxxxx> ha scritto:
>>>> 
>>>>> looks like the compute node has a bad setting for glance_api_servers on the second node.
>>>>> 
>>>>> because glance_api_servers defaults to $glance_host:$glance_port, you should be able to fix it by setting:
>>>>> 
>>>>> glance_host = <ip where glance is running>
>>>>> 
>>>>> in your nova.conf on the second node.
>>>>> 
>>>>> Vish
>>>>> 
>>>>> On Aug 23, 2012, at 10:15 AM, Alessandro Tagliapietra <tagliapietra.alessandro@xxxxxxxxx> wrote:
>>>>> 
>>>>>> Hi all,
>>>>>> 
>>>>>> i've a controller which is running all service and a secondary controller which is un multi_host so it's running compute network and api-metadata. From the dashboard i can successfully create snapshots of instances running on the controller but when i try to create a snapshot of an instance on a compute node i get in its logs:
>>>>>> 
>>>>>> ==> /var/log/nova/nova-compute.log <==
>>>>>> 2012-08-23 19:08:14 ERROR nova.rpc.amqp [req-66389a04-b071-4641-949b-3df04da85d08 a63f5293c5454a979bddff1415a216f6 e8c3367ff91d44b1ab1b14eb63f48bf7] Exception during message handling
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp Traceback (most recent call last):
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/rpc/amqp.py", line 253, in _process_data
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     rval = node_func(context=ctxt, **node_args)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     return f(*args, **kw)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 183, in decorated_function
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     sys.exc_info())
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/contextlib.py", line 24, in __exit__
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     self.gen.next()
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 177, in decorated_function
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     return function(self, context, instance_uuid, *args, **kwargs)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 952, in snapshot_instance
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     self.driver.snapshot(context, instance_ref, image_id)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/exception.py", line 114, in wrapped
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     return f(*args, **kw)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/connection.py", line 714, in snapshot
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     image_file)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 306, in update
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     _reraise_translated_image_exception(image_id)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/nova/image/glance.py", line 304, in update
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     image_meta = client.update_image(image_id, image_meta, data)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/glance/client.py", line 195, in update_image
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     res = self.do_request("PUT", "/images/%s" % image_id, body, headers)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 58, in wrapped
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     return func(self, *args, **kwargs)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 420, in do_request
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     headers=headers)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 75, in wrapped
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     return func(self, method, url, body, headers)
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp   File "/usr/lib/python2.7/dist-packages/glance/common/client.py", line 547, in _do_request
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp     raise exception.Invalid(res.read())
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp Invalid: Data supplied was not valid.
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp Details: 400 Bad Request
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp 
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp The server could not comply with the request since it is either malformed or otherwise incorrect.
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp 
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp  Failed to update image metadata. Got error: Data supplied was not valid. Details: 400 Bad Request  The server could not comply with the request since it is either malformed or otherwise incorrect.   Failed to update image metadata. Got error: Data supplied was not valid. Details: Invalid container format 'None' for image.    
>>>>>> 2012-08-23 19:08:14 TRACE nova.rpc.amqp
>>>>>> 
>>>>>> any idea?
>>>>>> Using nova create-image works but it creates a new image, not a snapshot (as the dashboard shows)
>>>>>> 
>>>>>> Best Regards
>>>>>> 
>>>>>> Alessandro
>>>>>> _______________________________________________
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>>>>> 
>>>> 
>>> 
>> 
>