1c056c384d
The cross-cell resize code does not consider neutron ports with resource request. To avoid migration failures this patch makes nova to fall back to same cell resize if the instance has neutron ports with resource request. Change-Id: Icaad4b2375b491c8a7e87fb6f4977ae2e13e8190 Closes-Bug: #1907522
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1.8 KiB
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41 lines
1.8 KiB
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=================================
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Using ports with resource request
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=================================
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Starting from microversion 2.72 nova supports creating servers with neutron
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ports having resource request visible as a admin-only port attribute
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``resource_request``. For example a neutron port has resource request if it has
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a QoS minimum bandwidth rule attached. Deleting such servers or detaching such
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ports works since Stein version of nova without requiring any specific
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microversion.
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However the following API operations are still not supported in nova:
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* Creating servers with neutron networks having QoS minimum bandwidth rule is
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not supported. The user needs to pre-create the port in that neutron network
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and create the server with the pre-created port.
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* Attaching Neutron ports and networks having QoS minimum bandwidth rule is not
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supported.
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Also the following API operations are not supported in the 19.0.0 (Stein)
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version of nova:
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* Moving (resizing, migrating, live-migrating, evacuating, unshelving after
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shelve offload) servers with ports having resource request is not yet
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supported.
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As of 20.0.0 (Train), nova supports cold migrating and resizing servers with
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neutron ports having resource requests if both the source and destination
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compute services are upgraded to 20.0.0 (Train) and the
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``[upgrade_levels]/compute`` configuration does not prevent the computes from
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using the latest RPC version. However cross cell resize and cross cell migrate
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operations are still not supported with such ports and Nova will fall back to
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same-cell resize if the server has such ports.
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As of 21.0.0 (Ussuri), nova supports evacuating, live migrating and unshelving
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servers with neutron ports having resource requests.
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See :nova-doc:`the admin guide <admin/port_with_resource_request.html>` for
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administrative details.
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