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authorGiulio Fidente <gfidente@redhat.com>2016-01-19 12:15:56 +0100
committerGiulio Fidente <gfidente@redhat.com>2016-05-03 23:47:13 +0200
commit69ff93f00dcd54814a87ea567870408c86bcb582 (patch)
treeb365eda43181a694fd8332408668543d729c000b /puppet/manifests
parent10dae1c697aab4b896154000687c3f40adba1e0e (diff)
Optimize Nova disk_cachemodes and hw_disk_discard options for RBD
When using the Nova RBD driver for the ephemeral storage it is suggested by the Ceph RBD OpenStack guide [1] to optimize certain settings; this change will set disk_cachemodes and hw_disk_discard accordingly to the guide. 1. http://docs.ceph.com/docs/master/rbd/rbd-openstack/ Change-Id: I8d2ee89ca4ff5458d1888cc037e2e91d19025ad4
Diffstat (limited to 'puppet/manifests')
-rw-r--r--puppet/manifests/overcloud_compute.pp13
1 files changed, 11 insertions, 2 deletions
diff --git a/puppet/manifests/overcloud_compute.pp b/puppet/manifests/overcloud_compute.pp
index cc58cb14..43e87789 100644
--- a/puppet/manifests/overcloud_compute.pp
+++ b/puppet/manifests/overcloud_compute.pp
@@ -90,8 +90,17 @@ if str2bool(hiera('nova::use_ipv6', false)) {
} else {
$vncserver_listen = '0.0.0.0'
}
-class { '::nova::compute::libvirt' :
- vncserver_listen => $vncserver_listen,
+
+if $rbd_ephemeral_storage {
+ class { '::nova::compute::libvirt':
+ libvirt_disk_cachemodes => ['network=writeback'],
+ libvirt_hw_disk_discard => 'unmap',
+ vncserver_listen => $vncserver_listen,
+ }
+} else {
+ class { '::nova::compute::libvirt' :
+ vncserver_listen => $vncserver_listen,
+ }
}
nova_config {