Open Stack

It looks like I need now to create a HostAggregate for "size=big" for each
project, specifying as properties:
 filter_tenant_id=<projectid>, size='big'

Is this the expected behaviour ?

Till Train a single HostAggregate with the property: size='big' was enough

Thanks, Massimo



On Fri, May 27, 2022 at 10:08 AM Massimo Sgaravatto <
massimo.sgaravatto at gmail.com> wrote:

> Dear all
>
> We have the following use case:
>
> - reserve 3 hypervisors for VMs with "big" flavors (whatever the users of
> these instances are)
> - partition the rest of the hypervisors according to the project (so
> projects A1,A2..,An can use only subset S1 of hypervisors,
> project B1,B2,..,Bm can use only subset S2 of hypervisors)
>
> We implemented this:
>
> 1- by setting an aggregate_instance_extra_spec  'size'  property (with
> value 'normal' or 'big') for each flavor  [*]
> 2- by creating a BigVMs  HostAggregate for size=big [**]
> 3- by creating an HostAggregate for size=normal for each project, such as
> this one [***]
>
>
> This used to work.
>
> A few days ago we updated our infrastructure from Train to Yoga
> This was an offline Fast Forward Update: we went through the intermediate
> releases just to do the dbsyncs.
> Since this update the instantiation of VMs with flavors with the size=big
> property doesn't work anymore
>
>
> This is what I see in nova-scheduler log:
> 2022-05-27 08:38:02.058 5273 INFO nova.filters
> [req-f92c0e38-262a-4d22-a7fd-8874c4265401 e237e43716fb490db5bda4b777835669
> 32b5d42c02b0411b8ebf2c33079eeecf - default default] Filtering removed all
> hosts for the request with instance ID
> '2412e188-9d5f-4812-ad21-195769a3c220'. Filter results:
> ['AggregateMultiTenancyIsolation: (start: 59, end: 10)',
> 'AggregateInstanceExtraSpecsFilter: (start: 10, end: 0)']
>
>
> Only modifying the  property of the BigVMs HA using the filter_tenant_id
> adding the relevant project:
>
> [root at cld-ctrl-01 ~]# openstack aggregate show BigVMs | grep prop
> | properties        | filter_tenant_id='32b5d42c02b0411b8ebf2c33079eeecf',
> size='big'                       |
>
> the scheduling works
>
> Specifying each project and keeping the list up-to-date would be a
> problem. Moreover if I am not wrong there is a maximum length for the
> property field.
>
> Any hints ?
> I didn't find anything related to this issue in the nova release notes for
> Openstack releases > Train
>
>
> These are the filters that we enabled:
>
> [filter_scheduler]
> enabled_filters =
> AggregateMultiTenancyIsolation,AggregateInstanceExtraSpecsFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGro\
> upAffinityFilter,PciPassthroughFilter,NUMATopologyFilter
>
>
> Thanks a lot, Massimo
>
>
> [*]
> E.g.
> [root at cld-ctrl-01 ~]# openstack flavor show cldareapd.medium | grep prope
> | properties                 |
> aggregate_instance_extra_specs:size='normal' |[root at cld-ctrl-01 ~]#
> openstack flavor show cloudvenetocloudveneto.40cores128GB25-bigunipd | grep
> prop
> | properties                 | aggregate_instance_extra_specs:size='big'
>    |
>
>
> [**]
>
> [root at cld-ctrl-01 ~]# openstack aggregate show BigVMs
>
> +-------------------+---------------------------------------------------------------------------------------+
> | Field             | Value
>                                   |
>
> +-------------------+---------------------------------------------------------------------------------------+
> | availability_zone | nova
>                                  |
> | created_at        | 2018-06-20T06:54:51.000000
>                                  |
> | deleted_at        | None
>                                  |
> | hosts             | cld-blu-08.cloud.pd.infn.it,
> cld-blu-09.cloud.pd.infn.it, cld-blu-10.cloud.pd.infn.it |
> | id                | 135
>                                   |
> | is_deleted        | False
>                                   |
> | name              | BigVMs
>                                  |
> | properties        |size='big'                       |
> | updated_at        | None
>                                  |
> | uuid              | 4b593395-1c76-441c-9022-d421f4ea2dfb
>                                  |
>
> +-------------------+---------------------------------------------------------------------------------------+
>
>
> [***]
> [root at cld-ctrl-01 ~]# openstack aggregate show Unipd-AdminTesting-Unipd
>
> +-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | Field             | Value
>
>
>
>                                       |
>
> +-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> | availability_zone | nova
>
>
>
>                                      |
> | created_at        | 2018-04-12T07:31:01.000000
>
>
>
>                                      |
> | deleted_at        | None
>
>
>
>                                      |
> | hosts             | cld-blu-01.cloud.pd.infn.it,
> cld-blu-02.cloud.pd.infn.it, cld-blu-05.cloud.pd.infn.it,
> cld-blu-06.cloud.pd.infn.it, cld-blu-07.cloud.pd.infn.it,
> cld-blu-11.cloud.pd.infn.it, cld-blu-12.cloud.pd.infn.it,
> cld-blu-13.cloud.pd.infn.it, cld-blu-14.cloud.pd.infn.it,
> cld-blu-15.cloud.pd.infn.it, cld-blu-16.cloud.pd.infn.it |
> | id                | 126
>
>
>
>                                       |
> | is_deleted        | False
>
>
>
>                                       |
> | name              | Unipd-AdminTesting-Unipd
>
>
>
>                                      |
> | properties        | filter_tenant_id='32b5d42c02b0411b8ebf2c33079eeecf',
> size='normal'
>
>
>                                      |
> | updated_at        | 2018-06-08T09:06:20.000000
>
>
>
>                                      |
> | uuid              | 38f6a0d4-77ab-42e0-abeb-57e06ba13cca
>
>
>
>                                      |
>
> +-------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
> [root at cld-ctrl-01 ~]#
>
>
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