This is a bug that I discovered when fixing some of the NUMA related
nova objects. I have a patch that should fix it up shortly.
This is what happens when we don't have any functional testing of stuff
that is merged into master...
Best,
-jay
On 02/02/2015 11:44 AM, Chris Friesen wrote:
Hi,
I'm trying to make use of huge pages as described in
"http://specs.openstack.org/openstack/nova-specs/specs/kilo/implemented/virt-driver-large-pages.html";.
I'm running kilo as of Jan 27th.
I've allocated 10000 2MB pages on a compute node. "virsh capabilities" on that
node contains:
<topology>
<cells num='2'>
<cell id='0'>
<memory unit='KiB'>67028244</memory>
<pages unit='KiB' size='4'>16032069</pages>
<pages unit='KiB' size='2048'>5000</pages>
<pages unit='KiB' size='1048576'>1</pages>
...
<cell id='1'>
<memory unit='KiB'>67108864</memory>
<pages unit='KiB' size='4'>16052224</pages>
<pages unit='KiB' size='2048'>5000</pages>
<pages unit='KiB' size='1048576'>1</pages>
I then restarted nova-compute, I set "hw:mem_page_size=large" on a flavor, and
then tried to boot up an instance with that flavor. I got the error logs below in
nova-scheduler. Is this a bug?
Feb 2 16:23:10 controller-0 nova-scheduler Exception during message handling:
Cannot load 'mempages' in the base class
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher Traceback
(most recent call last):
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line
134, in _dispatch_and_reply
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
incoming.message))
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line
177, in _dispatch
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher return
self._do_dispatch(endpoint, method, ctxt, args)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/oslo/messaging/rpc/dispatcher.py", line
123, in _do_dispatch
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher result =
getattr(endpoint, method)(ctxt, **new_args)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/oslo/messaging/rpc/server.py", line 139, in
inner
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher return
func(*args, **kwargs)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/manager.py", line 86, in
select_destinations
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
filter_properties)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line
67, in select_destinations
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
filter_properties)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line
138, in _schedule
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
filter_properties, index=num)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/host_manager.py", line 391,
in get_filtered_hosts
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher hosts,
filter_properties, index)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/filters.py", line 77, in
get_filtered_objects
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher list_objs
= list(objs)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/filters.py", line 43, in filter_all
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher if
self._filter_one(obj, filter_properties):
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/filters/__init__.py", line
27, in _filter_one
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher return
self.host_passes(obj, filter_properties)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/scheduler/filters/numa_topology_filter.py",
line 45, in host_passes
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
limits_topology=limits))
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/virt/hardware.py", line 1161, in
numa_fit_instance_to_host
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
host_cell, instance_cell, limit_cell)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/virt/hardware.py", line 851, in
_numa_fit_instance_cell
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
host_cell, instance_cell)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/virt/hardware.py", line 692, in
_numa_cell_supports_pagesize_request
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
avail_pagesize = [page.size_kb for page in host_cell.mempages]
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/objects/base.py", line 72, in getter
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
self.obj_load_attr(name)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher File
"/usr/lib64/python2.7/site-packages/nova/objects/base.py", line 507, in
obj_load_attr
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher _("Cannot load
'%s' in the base class") % attrname)
2015-02-02 16:23:10.746 37521 TRACE oslo.messaging.rpc.dispatcher
NotImplementedError: Cannot load 'mempages' in the base class
Thanks,
Chris
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