Can no longer explicitly configure the libvirt cache mode for disk devices
Bug #1086386 reported by
David McNally
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
OpenStack Compute (nova) |
Fix Released
|
Medium
|
David McNally |
Bug Description
Can no longer explicitly configure the libvirt cache mode for disk devices
In past versions of Nova it was possible to explicitly configure the cache mode of disks via the libvirt XML template. The new approach makes this a derived setting of either “none” or “writethrough” based on the support of O_DIRECT. Whilst this provides a good set of default settings it removes the ability of the cloud provider to use other modes such as “writeback” and “unsafe” which are valuable in certain configurations.
The proposed change would allow the cache mode to be directly specified via configuration settings so as to override the default behaviour.
Changed in nova: | |
assignee: | nobody → David McNally (dave-mcnally) |
Changed in nova: | |
status: | New → Triaged |
importance: | Undecided → Medium |
Changed in nova: | |
milestone: | none → grizzly-rc1 |
status: | Fix Committed → Fix Released |
Changed in nova: | |
milestone: | grizzly-rc1 → 2013.1 |
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Fix proposed to branch: master /review. openstack. org/18042
Review: https:/