Public bug reported:
When a VM boots using non-local disk, it tries to send an allocation of
'DISK_GB': 0. This violates the default min_unit of 1 and causes an error that
looks like this:
[req-858cbed4-c113-45e8-94e3-1d8ee64f9de0 488c2b05a66b441199f4c1dca7accd5b
3fa5b55ecc154427b636119f0920d252 - default default] Bad inventory
Traceback (most recent call last):
File
"/usr/lib/python2.7/site-packages/nova/api/openstack/placement/handlers/allocation.py",
line 253, in set_allocations
allocations.create_all()
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
226, in wrapper
return fn(self, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 1050, in create_all
self._set_allocations(self._context, self.objects)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py",
line 894, in wrapper
return fn(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 1011, in _set_allocations
before_gens = _check_capacity_exceeded(conn, allocs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 921, in _check_capacity_exceeded
resource_provider=rp_uuid)
InvalidAllocationConstraintsViolated: Unable to create allocation for 'DISK_GB'
on resource provider 'f9398126-d0e8-4cf8-ae45-9103a88aa13d'. The requested
amount would violate inventory constraints.
The causing code is at
https://github.com/openstack/nova/blob/474c2ef28234dacc658e9a78762cac66ef7fe334/nova/scheduler/client/report.py#L105
The correct fix is probably that whenever the value of any resource
class is zero, don't send that resource class in the dict.
** Affects: nova
Importance: Medium
Assignee: Chris Dent (cdent)
Status: Triaged
** Tags: placement scheduler
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https://bugs.launchpad.net/bugs/1647316
Title:
scheduler report client sends allocations with value of zero,
violating min_unit
Status in OpenStack Compute (nova):
Triaged
Bug description:
When a VM boots using non-local disk, it tries to send an allocation of
'DISK_GB': 0. This violates the default min_unit of 1 and causes an error that
looks like this:
[req-858cbed4-c113-45e8-94e3-1d8ee64f9de0 488c2b05a66b441199f4c1dca7accd5b
3fa5b55ecc154427b636119f0920d252 - default default] Bad inventory
Traceback (most recent call last):
File
"/usr/lib/python2.7/site-packages/nova/api/openstack/placement/handlers/allocation.py",
line 253, in set_allocations
allocations.create_all()
File "/usr/lib/python2.7/site-packages/oslo_versionedobjects/base.py", line
226, in wrapper
return fn(self, *args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 1050, in create_all
self._set_allocations(self._context, self.objects)
File "/usr/lib/python2.7/site-packages/oslo_db/sqlalchemy/enginefacade.py",
line 894, in wrapper
return fn(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 1011, in _set_allocations
before_gens = _check_capacity_exceeded(conn, allocs)
File "/usr/lib/python2.7/site-packages/nova/objects/resource_provider.py",
line 921, in _check_capacity_exceeded
resource_provider=rp_uuid)
InvalidAllocationConstraintsViolated: Unable to create allocation for
'DISK_GB' on resource provider 'f9398126-d0e8-4cf8-ae45-9103a88aa13d'. The
requested amount would violate inventory constraints.
The causing code is at
https://github.com/openstack/nova/blob/474c2ef28234dacc658e9a78762cac66ef7fe334/nova/scheduler/client/report.py#L105
The correct fix is probably that whenever the value of any resource
class is zero, don't send that resource class in the dict.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1647316/+subscriptions
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