cells assumes compute nodes are subdivisible

Bug #1412197 reported by aeva black
This bug affects 1 person
Affects Status Importance Assigned to Milestone
OpenStack Compute (nova)
Won't Fix

Bug Description

In nova/cells/starte.py _update_our_capacity(), the calculations of free units of compute are based on optimistic packing of each instance type on each compute node. This does not account for hypervisors which do not allow more than one instance per node, such as ironic.

Tags: cells ironic
aeva black (tenbrae)
tags: added: cells ironic
Andrew Laski (alaski)
Changed in nova:
status: New → Confirmed
importance: Undecided → Low
Revision history for this message
Michael Davies (mrda) wrote :

Just noting that the proposed changes here (https://github.com/openstack/nova-specs/blob/master/specs/mitaka/approved/ironic-multiple-compute-hosts.rst) don't actually help as they don't address the cells resource tracker.

Revision history for this message
Sean Dague (sdague) wrote :

Cells v1 is in freeze state. Only regressions will be addressed.

Changed in nova:
status: Confirmed → Won't Fix
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