Inconsistent xml for libvirt disks
Bug #1729636 reported by
Mike Lowe
This bug report is a duplicate of:
Bug #1727558: libvirt driver ignores 'disk_cachemodes' configuration setting.
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This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| OpenStack Compute (nova) |
New
|
Undecided
|
Unassigned | ||
Bug Description
With both of these settings the xml is not consistent between root disks and volumes when using RBD.
hw_disk_discard = unmap
disk_cachemodes = network=writeback
Root disks get this:
<driver name='qemu' type='raw' cache='none' discard='unmap'/>
Volumes get this:
<driver name='qemu' type='raw' cache='writeback'/>
Both have the same type (<disk type='network' device='disk'>) but the settings are not applied consistently between volumes and root disks.
nova: 15.0.7
CentOS: 7.4
libvirt: 3.2.0
Ceph: 12.2.1
Revision history for this message
| Mike Lowe (jomlowe) wrote | #2 |
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This was recently fixed and backported to stable/ocata:
https:/