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[Bug 1654102] [NEW] Ironic: TypeError: unsupported operand type(s) for *: 'NoneType' and 'int' - during select_destinations()

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Matt Riedemann <mriedem@xxxxxxxxxx>
Date: Wed, 04 Jan 2017 23:55:08 -0000
Reply-to: Bug 1654102 <1654102@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

This looks like a duplicate of bug 1610679 but that's for the non-Ironic
scheduler host manager, this is for the Ironic host manager.

Seen here:

http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
nv/0779f94/logs/screen-n-sch.txt.gz#_2017-01-04_19_05_16_398

2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210', u'21da4933-a128-45f6-a765-7e6bc071e0f3')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" acquired by "nova.scheduler.host_manager._locked_update" :: waited 0.000s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:270
2017-01-04 19:05:16.398 20709 DEBUG nova.scheduler.host_manager [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Update host state from compute node: ComputeNode(cpu_allocation_ratio=16.0,cpu_info='',created_at=2017-01-04T19:02:54Z,current_workload=None,deleted=False,deleted_at=None,disk_allocation_ratio=1.0,disk_available_least=10,free_disk_gb=None,free_ram_mb=None,host='ubuntu-xenial-2-node-rax-ord-6478210-359401',host_ip=10.210.37.31,hypervisor_hostname='00d62acd-6f3b-4cb8-9668-12517c84b3b9',hypervisor_type='ironic',hypervisor_version=1,id=8,local_gb=10,local_gb_used=0,memory_mb=384,memory_mb_used=0,metrics=None,numa_topology=None,pci_device_pools=PciDevicePoolList,ram_allocation_ratio=1.0,running_vms=None,service_id=None,stats={cpu_arch='x86_64'},supported_hv_specs=[HVSpec],updated_at=2017-01-04T19:04:51Z,uuid=521cf775-5a16-4111-bf26-c30fb6725716,vcpus=1,vcpus_used=0) _locked_update /opt/stack/new/nova/nova/scheduler/host_manager.py:168
2017-01-04 19:05:16.400 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Exception during message handling
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 155, in _process_incoming
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 222, in dispatch
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 192, in _do_dispatch
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 218, in inner
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return func(*args, **kwargs)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/manager.py", line 84, in select_destinations
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     dests = self.driver.select_destinations(ctxt, spec_obj)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 51, in select_destinations
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     selected_hosts = self._schedule(context, spec_obj)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 96, in _schedule
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     hosts = self._get_all_host_states(elevated)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 134, in _get_all_host_states
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self.host_manager.get_all_host_states(context)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 610, in get_all_host_states
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._get_instance_info(context, compute))
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 180, in update
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return _locked_update(self, compute, service, aggregates, inst_dict)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 271, in inner
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 169, in _locked_update
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._update_from_compute_node(compute)
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/ironic_host_manager.py", line 46, in _update_from_compute_node
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self.free_disk_mb = compute.free_disk_gb * 1024
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'
2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server

Right before the scheduler failure I see this in the n-cpu logs:

http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
nv/0779f94/logs/screen-n-cpu.txt.gz#_2017-01-04_19_03_55_573

2017-01-04 19:03:55.573 28458 INFO nova.compute.manager [req-a0b07a5e-
2c5a-4550-a0b5-6d1fe2b1d9e0 - -] Deleting orphan compute node 1
hypervisor host is 00d62acd-6f3b-4cb8-9668-12517c84b3b9, nodes are
set([u'74396195-3bd0-4bc3-9f51-2f9d9ff32616',
u'dd8dcc23-04f4-4718-a079-e1b77d70bad9', u'36827858-740c-4f1d-
a0e9-17339f441338', u'86939305-5678-4796-a250-76295faf1890',
u'0f813337-25e3-4c12-a2b0-cf2222f3cc7f',
u'21da4933-a128-45f6-a765-7e6bc071e0f3'])

I'm not really sure what's going on with the compute node record though,
if it's getting deleted or what, because once the resource tracker
creates the compute node record it should be setting free_disk_gb
shortly thereafter and then updating the record in the database. There
is definitely a window of time between when the compute node record is
first created and when it's updated, but that doesn't appear to be the
case here since the updated_at field is set:

updated_at=2017-01-04T19:04:51Z

But the failure is about 25 seconds after that.

This also seems to be happening quite a bit since January 2nd 2017:

http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22_update_from_compute_node%5C%22%20AND%20message%3A%5C%22TypeError%3A%20unsupported%20operand%20type(s)%20for%20*%3A%20'NoneType'%20and%20'int'%5C%22%20AND%20tags%3A%5C%22screen-n-sch.txt%5C%22&from=7d

** Affects: nova
     Importance: Medium
         Status: Confirmed


** Tags: ironic scheduler

** Changed in: nova
       Status: New => Confirmed

** Changed in: nova
   Importance: Undecided => Medium

** Description changed:

  This looks like a duplicate of bug 1610679 but that's for the non-Ironic
  scheduler host manager, this is for the Ironic host manager.
  
  Seen here:
  
  http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
  ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
  nv/0779f94/logs/screen-n-sch.txt.gz#_2017-01-04_19_05_16_398
  
  2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210', u'21da4933-a128-45f6-a765-7e6bc071e0f3')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
  2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" acquired by "nova.scheduler.host_manager._locked_update" :: waited 0.000s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:270
  2017-01-04 19:05:16.398 20709 DEBUG nova.scheduler.host_manager [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Update host state from compute node: ComputeNode(cpu_allocation_ratio=16.0,cpu_info='',created_at=2017-01-04T19:02:54Z,current_workload=None,deleted=False,deleted_at=None,disk_allocation_ratio=1.0,disk_available_least=10,free_disk_gb=None,free_ram_mb=None,host='ubuntu-xenial-2-node-rax-ord-6478210-359401',host_ip=10.210.37.31,hypervisor_hostname='00d62acd-6f3b-4cb8-9668-12517c84b3b9',hypervisor_type='ironic',hypervisor_version=1,id=8,local_gb=10,local_gb_used=0,memory_mb=384,memory_mb_used=0,metrics=None,numa_topology=None,pci_device_pools=PciDevicePoolList,ram_allocation_ratio=1.0,running_vms=None,service_id=None,stats={cpu_arch='x86_64'},supported_hv_specs=[HVSpec],updated_at=2017-01-04T19:04:51Z,uuid=521cf775-5a16-4111-bf26-c30fb6725716,vcpus=1,vcpus_used=0) _locked_update /opt/stack/new/nova/nova/scheduler/host_manager.py:168
  2017-01-04 19:05:16.400 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Exception during message handling
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 155, in _process_incoming
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 222, in dispatch
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 192, in _do_dispatch
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 218, in inner
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return func(*args, **kwargs)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/manager.py", line 84, in select_destinations
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     dests = self.driver.select_destinations(ctxt, spec_obj)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 51, in select_destinations
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     selected_hosts = self._schedule(context, spec_obj)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 96, in _schedule
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     hosts = self._get_all_host_states(elevated)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 134, in _get_all_host_states
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self.host_manager.get_all_host_states(context)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 610, in get_all_host_states
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._get_instance_info(context, compute))
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 180, in update
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return _locked_update(self, compute, service, aggregates, inst_dict)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 271, in inner
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 169, in _locked_update
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._update_from_compute_node(compute)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/ironic_host_manager.py", line 46, in _update_from_compute_node
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self.free_disk_mb = compute.free_disk_gb * 1024
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'
- 2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server 
- 
- 
+ 2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server
  
  Right before the scheduler failure I see this in the n-cpu logs:
  
  http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
  ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
  nv/0779f94/logs/screen-n-cpu.txt.gz#_2017-01-04_19_03_55_573
  
  2017-01-04 19:03:55.573 28458 INFO nova.compute.manager [req-a0b07a5e-
  2c5a-4550-a0b5-6d1fe2b1d9e0 - -] Deleting orphan compute node 1
  hypervisor host is 00d62acd-6f3b-4cb8-9668-12517c84b3b9, nodes are
  set([u'74396195-3bd0-4bc3-9f51-2f9d9ff32616',
  u'dd8dcc23-04f4-4718-a079-e1b77d70bad9', u'36827858-740c-4f1d-
  a0e9-17339f441338', u'86939305-5678-4796-a250-76295faf1890',
  u'0f813337-25e3-4c12-a2b0-cf2222f3cc7f',
  u'21da4933-a128-45f6-a765-7e6bc071e0f3'])
  
  I'm not really sure what's going on with the compute node record though,
  if it's getting deleted or what, because once the resource tracker
  creates the compute node record it should be setting free_disk_gb
  shortly thereafter and then updating the record in the database. There
  is definitely a window of time between when the compute node record is
  first created and when it's updated, but that doesn't appear to be the
  case here since the updated_at field is set:
  
  updated_at=2017-01-04T19:04:51Z
  
- But the failure is about 20 seconds after that.
+ But the failure is about 25 seconds after that.
  
  This also seems to be happening quite a bit since January 2nd 2017:
  
  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22_update_from_compute_node%5C%22%20AND%20message%3A%5C%22TypeError%3A%20unsupported%20operand%20type(s)%20for%20*%3A%20'NoneType'%20and%20'int'%5C%22%20AND%20tags%3A%5C%22screen-n-sch.txt%5C%22&from=7d

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https://bugs.launchpad.net/bugs/1654102

Title:
  Ironic: TypeError: unsupported operand type(s) for *: 'NoneType' and
  'int' - during select_destinations()

Status in OpenStack Compute (nova):
  Confirmed

Bug description:
  This looks like a duplicate of bug 1610679 but that's for the non-
  Ironic scheduler host manager, this is for the Ironic host manager.

  Seen here:

  http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
  ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
  nv/0779f94/logs/screen-n-sch.txt.gz#_2017-01-04_19_05_16_398

  2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210', u'21da4933-a128-45f6-a765-7e6bc071e0f3')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
  2017-01-04 19:05:16.398 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" acquired by "nova.scheduler.host_manager._locked_update" :: waited 0.000s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:270
  2017-01-04 19:05:16.398 20709 DEBUG nova.scheduler.host_manager [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Update host state from compute node: ComputeNode(cpu_allocation_ratio=16.0,cpu_info='',created_at=2017-01-04T19:02:54Z,current_workload=None,deleted=False,deleted_at=None,disk_allocation_ratio=1.0,disk_available_least=10,free_disk_gb=None,free_ram_mb=None,host='ubuntu-xenial-2-node-rax-ord-6478210-359401',host_ip=10.210.37.31,hypervisor_hostname='00d62acd-6f3b-4cb8-9668-12517c84b3b9',hypervisor_type='ironic',hypervisor_version=1,id=8,local_gb=10,local_gb_used=0,memory_mb=384,memory_mb_used=0,metrics=None,numa_topology=None,pci_device_pools=PciDevicePoolList,ram_allocation_ratio=1.0,running_vms=None,service_id=None,stats={cpu_arch='x86_64'},supported_hv_specs=[HVSpec],updated_at=2017-01-04T19:04:51Z,uuid=521cf775-5a16-4111-bf26-c30fb6725716,vcpus=1,vcpus_used=0) _locked_update /opt/stack/new/nova/nova/scheduler/host_manager.py:168
  2017-01-04 19:05:16.400 20709 DEBUG oslo_concurrency.lockutils [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Lock "(u'ubuntu-xenial-2-node-rax-ord-6478210-359401', u'00d62acd-6f3b-4cb8-9668-12517c84b3b9')" released by "nova.scheduler.host_manager._locked_update" :: held 0.002s inner /usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py:282
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server [req-6ce318a2-53e5-4b80-84a5-f896ab48d627 tempest-BaremetalMultitenancy-1820943769 tempest-BaremetalMultitenancy-1820943769] Exception during message handling
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 155, in _process_incoming
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     res = self.dispatcher.dispatch(message)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 222, in dispatch
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self._do_dispatch(endpoint, method, ctxt, args)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 192, in _do_dispatch
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     result = func(ctxt, **new_args)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/server.py", line 218, in inner
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return func(*args, **kwargs)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/manager.py", line 84, in select_destinations
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     dests = self.driver.select_destinations(ctxt, spec_obj)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 51, in select_destinations
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     selected_hosts = self._schedule(context, spec_obj)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 96, in _schedule
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     hosts = self._get_all_host_states(elevated)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/filter_scheduler.py", line 134, in _get_all_host_states
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return self.host_manager.get_all_host_states(context)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 610, in get_all_host_states
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._get_instance_info(context, compute))
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 180, in update
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return _locked_update(self, compute, service, aggregates, inst_dict)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/usr/local/lib/python2.7/dist-packages/oslo_concurrency/lockutils.py", line 271, in inner
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     return f(*args, **kwargs)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/host_manager.py", line 169, in _locked_update
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self._update_from_compute_node(compute)
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server   File "/opt/stack/new/nova/nova/scheduler/ironic_host_manager.py", line 46, in _update_from_compute_node
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server     self.free_disk_mb = compute.free_disk_gb * 1024
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server TypeError: unsupported operand type(s) for *: 'NoneType' and 'int'
  2017-01-04 19:05:16.400 20709 ERROR oslo_messaging.rpc.server

  Right before the scheduler failure I see this in the n-cpu logs:

  http://logs.openstack.org/20/407220/2/check/gate-tempest-dsvm-ironic-
  ipa-wholedisk-agent_ipmitool-tinyipa-multinode-ubuntu-xenial-
  nv/0779f94/logs/screen-n-cpu.txt.gz#_2017-01-04_19_03_55_573

  2017-01-04 19:03:55.573 28458 INFO nova.compute.manager [req-a0b07a5e-
  2c5a-4550-a0b5-6d1fe2b1d9e0 - -] Deleting orphan compute node 1
  hypervisor host is 00d62acd-6f3b-4cb8-9668-12517c84b3b9, nodes are
  set([u'74396195-3bd0-4bc3-9f51-2f9d9ff32616',
  u'dd8dcc23-04f4-4718-a079-e1b77d70bad9', u'36827858-740c-4f1d-
  a0e9-17339f441338', u'86939305-5678-4796-a250-76295faf1890',
  u'0f813337-25e3-4c12-a2b0-cf2222f3cc7f',
  u'21da4933-a128-45f6-a765-7e6bc071e0f3'])

  I'm not really sure what's going on with the compute node record
  though, if it's getting deleted or what, because once the resource
  tracker creates the compute node record it should be setting
  free_disk_gb shortly thereafter and then updating the record in the
  database. There is definitely a window of time between when the
  compute node record is first created and when it's updated, but that
  doesn't appear to be the case here since the updated_at field is set:

  updated_at=2017-01-04T19:04:51Z

  But the failure is about 25 seconds after that.

  This also seems to be happening quite a bit since January 2nd 2017:

  http://logstash.openstack.org/#dashboard/file/logstash.json?query=message%3A%5C%22_update_from_compute_node%5C%22%20AND%20message%3A%5C%22TypeError%3A%20unsupported%20operand%20type(s)%20for%20*%3A%20'NoneType'%20and%20'int'%5C%22%20AND%20tags%3A%5C%22screen-n-sch.txt%5C%22&from=7d

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Follow ups

[Bug 1654102] Re: Ironic: TypeError: unsupported operand type(s) for *: 'NoneType' and 'int' - during select_destinations()
From: OpenStack Infra, 2017-01-07
[Bug 1654102] Re: Ironic: TypeError: unsupported operand type(s) for *: 'NoneType' and 'int' - during select_destinations()
From: Matt Riedemann, 2017-01-05