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Re: [Xen-devel] Problem when launch instance in OpenStack when we use xen as virtuallization layer



On Wed, Feb 19, 2014 at 1:59 PM, Kai Luo <luokain@xxxxxxxxx> wrote:
> Hello all:
>       Recently we are trying to deploy OpenStack with xen 4.3.0 as
> virtualization layer, however an error occered when we launch an instance
> from an image.We have confirmed that OpenStack services work fine and the
> problem may lies in the xen layer.We checked the xend log and got the
> following exception:

I think I would start by asking this on xen-users (CC'd) -- it seems
likely that this is a configuration issue between openstack and Xen,
and there's more expertise for that here than on xen-devel (where we
have more expertise about issues internal to Xen).

>
> TapdiskException: ('create',
> '-aqcow2:arbva/instances4b07c5-7443-418b-81c4-a1f55fb264d3/disk') failed
> (32512  )
> [2014-02-18 21:13:43 11395] DEBUG (XendDomainInfo:3078)
> XendDomainInfo.destroy: domid=21
> [2014-02-18 21:13:43 11395] DEBUG (XendDomainInfo:2408) No device model
> [2014-02-18 21:13:43 11395] DEBUG (XendDomainInfo:2410) Releasing devices
> [2014-02-18 21:13:43 11395] ERROR (SrvBase:88) Request start failed.
> Traceback (most recent call last):
>   File "/usrb/xen-4.3/bin/..b/python/xen/web/SrvBase.py", line 85, in
> perform
>     return op_method(op, req)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xendrver/SrvDomain.py", line 77, in
> op_start
>     return self.xd.domain_start(self.dom.getName(), paused)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendDomain.py", line 1070, in
> domain_start
>     dominfo.start(is_managed = True)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendDomainInfo.py", line 474,
> in start
>     XendTask.log_progress(31, 60, self._initDomain)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendTask.py", line 209, in
> log_progress
>     retval = func(*args, **kwds)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendDomainInfo.py", line 2845,
> in _initDomain
>     self._configureBootloader()
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendDomainInfo.py", line 3286,
> in _configureBootloader
>     mounted_vbd_uuid = dom0.create_vbd(vbd, disk);
>   File "/usrb/xen-4.3/bin/..b/python/xen/xend/XendDomainInfo.py", line 3979,
> in create_vbd
>     devid = dev_control.createDevice(config)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xendrver/BlktapController.py", line
> 172, in createDevice
>     device = TapdiskController.create(params, file)
>   File "/usrb/xen-4.3/bin/..b/python/xen/xendrver/BlktapController.py", line
> 284, in create
>     return TapdiskController.exc('create', '-a%s:%s' % (dtype, image))
>   File "/usrb/xen-4.3/bin/..b/python/xen/xendrver/BlktapController.py", line
> 231, in exc
>     (args, rc, out, err))
> TapdiskException: ('create',
> '-aqcow2:arbva/instances4b07c5-7443-418b-81c4-a1f55fb264d3/disk') failed
> (32512  )
> [2014-02-18 21:13:44 11395] INFO (XendDomain:1126) Domain instance-00000035
> (db4b07c5-7443-418b-81c4-a1f55fb264d3) deleted.
>
>      We tryed to use image of RAW or QCOW2 format and switch the xen
> toolstack from xm to xl,still did't work.when we switch the toolstack to xl
> and closed the xend service, the virt-manager did not work either.We don't
> know what caused this problem and we know XCP may be a better choice but we
> have to use xen as OpenStack virtualization layer because some modifications
> have made in xen.Could you give any suggestions?
>
> Jone
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel
>

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