[Openstack] [Nova] scheduling new instance fail when host aggregates are enabled

sylecn sylecn at gmail.com
Fri Dec 13 04:36:53 UTC 2013


Thanks Jay.

After enable debug, I found the scheduler fails at
ComputeCapabilitiesFilter step.
Recall the filter chain I configured is

scheduler_default_filters=RetryFilter,AggregateInstanceExtraSpecsFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter

Now I'm researching why it fails at that filter.

--
Yuanle


On Fri, Dec 13, 2013 at 12:18 PM, Jay Lau <jay.lau.513 at gmail.com> wrote:

> You can enable debug log and check scheduler log to see what's wrong with
> the filters.
>
> Just update /etc/nova/nova.conf, set debug=True and then restart nova
> scheduler /etc/init.d/openstack-nova-scheduler restart.
>
> Thanks,
>
> Jay
>
>
> 2013/12/13 sylecn <sylecn at gmail.com>
>
>> Hi,
>>
>> I have enabled host aggregates to aid scheduling instances on hosts
>> with cpus of the same type (in order to test live migration). But after
>> I set it up, scheduling flavor with the extra_specs key-value pair always
>> fail.
>>
>> The logs did not help much. How can I debug this problem?
>>
>> I'm running the Havana version in a test environment. Nova controller and
>> nova-compute are on different nodes.
>>
>> Thanks,
>> Yuanle
>>
>> nova-scheduler.log
>> ====================
>> 2013-12-13 11:41:11.510 57764 INFO nova.scheduler.filter_scheduler
>> [req-ad22cb01-07ef-4c79-b42e-49de8ce01473 867dfccf4a14433287d67bf39004336d
>> 860483f3ceeb43aab4d1f0e8f76b4064] Attempting to build 1 instance(s) uuids:
>> [u'ab7e8436-f998-4edc-89ee-a9b6bab17fa3']
>> 2013-12-13 11:41:11.543 57764 WARNING nova.scheduler.driver
>> [req-ad22cb01-07ef-4c79-b42e-49de8ce01473 867dfccf4a14433287d67bf39004336d
>> 860483f3ceeb43aab4d1f0e8f76b4064] [instance:
>> ab7e8436-f998-4edc-89ee-a9b6bab17fa3] Setting instance to ERROR state.
>>
>> This is the command use to boot the instance:
>>
>> bin/nova boot --flavor lm.c1 --key_name sylecn_at_vboxw1 --image
>> cirros-0.3.1 --nic net-id=$VM_NET_ID c8
>>
>> booting other flavor works fine on the same nova-compute node (
>> ceph3.geocast.net).
>>
>> Here is the host aggregates setup:
>>
>> /etc/nova/nova.conf
>> ===================
>>
>> scheduler_default_filters=RetryFilter,AggregateInstanceExtraSpecsFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter
>>
>> All nova services are restarted after updating nova.conf.
>>
>> sylecn at vboxw1:~/projects/openstack-deploy$ bin/nova flavor-show lm.c1
>> +----------------------------+--------------------------------------+
>> | Property                   | Value                                |
>> +----------------------------+--------------------------------------+
>> | name                       | lm.c1                                |
>> | ram                        | 50                                   |
>> | OS-FLV-DISABLED:disabled   | False                                |
>> | vcpus                      | 1                                    |
>> | extra_specs                | {u'cpu_athlon_5k': u'true'}          |
>> | swap                       |                                      |
>> | os-flavor-access:is_public | True                                 |
>> | rxtx_factor                | 1.0                                  |
>> | OS-FLV-EXT-DATA:ephemeral  | 0                                    |
>> | disk                       | 1                                    |
>> | id                         | ab1e6c6e-fbc3-4139-a626-c64aac9b5986 |
>> +----------------------------+--------------------------------------+
>> sylecn at vboxw1:~/projects/openstack-deploy$ bin/nova aggregate-details lm
>>
>> +----+------+-------------------+------------------------+------------------------------------------------------------+
>> | Id | Name | Availability Zone | Hosts                  |
>> Metadata                                                   |
>>
>> +----+------+-------------------+------------------------+------------------------------------------------------------+
>> | 1  | lm   | nova              | [u'ceph3.geocast.net'] |
>> {u'cpu_athlon_5k': u'true', u'availability_zone': u'nova'} |
>>
>> +----+------+-------------------+------------------------+------------------------------------------------------------+
>> sylecn at vboxw1:~/projects/openstack-deploy$ bin/nova show c8
>>
>> +--------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>> | Property                             |
>> Value
>> |
>>
>> +--------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>> | status                               |
>> ERROR
>> |
>> | updated                              |
>> 2013-12-13T03:41:11Z
>> |
>> | OS-EXT-STS:task_state                |
>> None
>> |
>> | OS-EXT-SRV-ATTR:host                 |
>> None
>> |
>> | key_name                             |
>> sylecn_at_vboxw1
>> |
>> | image                                | cirros-0.3.1
>> (42268409-bd69-479b-a423-a6fbe1a51bef)
>> |
>> | hostId
>> |
>> |
>> | OS-EXT-STS:vm_state                  |
>> error
>> |
>> | OS-EXT-SRV-ATTR:instance_name        |
>> instance-0000004c
>> |
>> | OS-SRV-USG:launched_at               |
>> None
>> |
>> | OS-EXT-SRV-ATTR:hypervisor_hostname  |
>> None
>> |
>> | flavor                               | lm.c1
>> (ab1e6c6e-fbc3-4139-a626-c64aac9b5986)
>> |
>> | id                                   |
>> ab7e8436-f998-4edc-89ee-a9b6bab17fa3
>> |
>> | OS-SRV-USG:terminated_at             |
>> None
>> |
>> | user_id                              |
>> 867dfccf4a14433287d67bf39004336d
>> |
>> | name                                 |
>> c8
>> |
>> | created                              |
>> 2013-12-13T03:41:10Z
>> |
>> | tenant_id                            |
>> 860483f3ceeb43aab4d1f0e8f76b4064
>> |
>> | OS-DCF:diskConfig                    |
>> MANUAL
>> |
>> | metadata                             |
>> {}
>> |
>> | os-extended-volumes:volumes_attached |
>> []
>> |
>> | accessIPv4
>> |
>> |
>> | accessIPv6
>> |
>> |
>> | fault                                | {u'message': u'No valid host was
>> found. ', u'code': 500, u'details': u'  File
>> "/usr/lib/python2.7/dist-packages/nova/scheduler/filter_scheduler.py", line
>> 107, in schedule_run_instance |
>> |                                      |     raise
>> exception.NoValidHost(reason="")
>> |
>> |                                      | ', u'created':
>> u'2013-12-13T03:41:11Z'}
>> |
>> | OS-EXT-STS:power_state               |
>> 0
>> |
>> | OS-EXT-AZ:availability_zone          |
>> nova
>> |
>> | config_drive
>> |
>> |
>>
>> +--------------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
>>
>>
>>
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