I think you might be hitting this bug:
https://bugs.launchpad.net/nova/+bug/1305423
My workaround was to create additional flavors with the ephemeral disk size
pre-set.
Sent from my iPhone
> On May 26, 2014, at 12:54 PM, Yitao Jiang <willier...@gmail.com> wrote:
>
> Hi, stackers
>
> I launch a vm with command nova boot --nic
> net-id=8e4d4df7-7534-4733-a2f9-dd44b3b1f90d --image CentOS64 --flavor
> m1.x1-tiny --key-name dvlp_willier_com --ephemeral size=1
> CentOS64_VM01_EPHEMERAL
> and m1.x1-tiny with 10G ephemeral disk
> [root@devstack:keystone_admin /# nova flavor-show m1.x1-tiny
> +----------------------------+------------+
> | Property | Value |
> +----------------------------+------------+
> | OS-FLV-DISABLED:disabled | False |
> | OS-FLV-EXT-DATA:ephemeral | 10 |
> | disk | 10 |
> | extra_specs | {} |
> | id | 7 |
> | name | m1.x1-tiny |
> | os-flavor-access:is_public | True |
> | ram | 512 |
> | rxtx_factor | 1.0 |
> | swap | 2048 |
> | vcpus | 1 |
> +----------------------------+------------+
> the vm went running, and the ephmeral disk got created
> [root@devstack:keystone_admin instances]# virsh domblklist 2
> Target Source
> ------------------------------------------------
> vda
> /opt/stack/data/nova/instances/a86bbc9f-92e0-4b63-ae9e-21bf136570d7/disk
> vdb
> /opt/stack/data/nova/instances/a86bbc9f-92e0-4b63-ae9e-21bf136570d7/disk.eph0
> vdc
> /opt/stack/data/nova/instances/a86bbc9f-92e0-4b63-ae9e-21bf136570d7/disk.swap
>
> but after i stopped the vm, the disk.eph0 still exists. If i start the vm,
> nova-compute.log error occurs
> with below exception
>
> 2014-05-27 00:52:27.460 ERROR nova.openstack.common.rpc.amqp
> [req-6c192903-d117-4406-89a4-0bb4af428275 admin admin] Exception during
> message handling
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp Traceback
> (most recent call last):
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/openstack/common/rpc/amqp.py", line 461, in
> _process_data
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp **args)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/openstack/common/rpc/dispatcher.py", line 172, in
> dispatch
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp result
> = getattr(proxyobj, method)(ctxt, **kwargs)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 353, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp return
> function(self, context, *args, **kwargs)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/exception.py", line 90, in wrapped
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp payload)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/exception.py", line 73, in wrapped
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp return
> f(self, context, *args, **kw)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 243, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp pass
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 229, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp return
> function(self, context, *args, **kwargs)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 294, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp
> function(self, context, *args, **kwargs)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 271, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp e,
> sys.exc_info())
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 258, in decorated_function
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp return
> function(self, context, *args, **kwargs)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 1850, in start_instance
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp
> self._power_on(context, instance)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/compute/manager.py", line 1837, in _power_on
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp
> block_device_info)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1969, in power_on
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp
> self._hard_reboot(context, instance, network_info, block_device_info)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/virt/libvirt/driver.py", line 1924, in _hard_reboot
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp
> block_device_info)
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/opt/stack/nova/nova/virt/libvirt/driver.py", line 4380, in
> get_instance_disk_info
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp dk_size
> = int(os.path.getsize(path))
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp File
> "/usr/lib64/python2.6/genericpath.py", line 49, in getsize
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp return
> os.stat(filename).st_size
> 2014-05-27 00:52:27.460 3773 TRACE nova.openstack.common.rpc.amqp OSError:
> [Errno 2] No such file or directory:
> '/opt/stack/data/nova/instances/a86bbc9f-92e0-4b63-ae9e-21bf136570d7/disk.local'
>
> How can I start the vm with emphemeral disk
>
> ---
> Thanks,
> Yitao(依涛 姜)
> jiangyt.github.io
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