add libvirt live_migration timeout parameters

This commit adds support for the libvirt live_migration_progress_timeout
and live_migration_completion_timeout parameters. These parameters are
useful for configuring timeouts for live_migration in cases where the
network is slower (e.g. 1GbE) or where the RAM usage is large. In both
these cases, timeouts can occur while live migrating using the default
libvirt values in nova.

Change-Id: Id728b3aa184d4218fcecea4e716e3b644668af85
This commit is contained in:
Marcus Furlong 2016-09-02 14:25:54 +10:00
parent 296c52eb6a
commit a8e3d482be
2 changed files with 33 additions and 10 deletions

View File

@ -24,6 +24,19 @@
# the availability of native encryption support in the hypervisor.
# Defaults to $::os_service_default
#
# [*live_migration_completion_timeout*]
# (optional) Time to wait, in seconds, for migration to successfully complete
# transferring data before aborting the operation. Value is per GiB of guest
# RAM + disk to be transferred, with lower bound of a minimum of 2 GiB. Set
# to 0 to disable timeouts.
# Defaults to $::os_service_default
#
# [*live_migration_progress_timeout*]
# (optional) Time to wait, in seconds, for migration to make forward progress
# in transferring data before aborting the operation. Set to 0 to disable
# timeouts.
# Defaults to $::os_service_default
#
# [*override_uuid*]
# (optional) Set uuid not equal to output from dmidecode (boolean)
# Defaults to false
@ -50,6 +63,8 @@ class nova::migration::libvirt(
$use_tls = false,
$auth = 'none',
$live_migration_tunnelled = $::os_service_default,
$live_migration_completion_timeout = $::os_service_default,
$live_migration_progress_timeout = $::os_service_default,
$override_uuid = false,
$configure_libvirt = true,
$configure_nova = true,
@ -86,7 +101,9 @@ class nova::migration::libvirt(
}
nova_config {
'libvirt/live_migration_tunnelled': value => $live_migration_tunnelled
'libvirt/live_migration_tunnelled': value => $live_migration_tunnelled;
'libvirt/live_migration_completion_timeout': value => $live_migration_completion_timeout;
'libvirt/live_migration_progress_timeout': value => $live_migration_progress_timeout;
}
}

View File

@ -45,6 +45,8 @@ describe 'nova::migration::libvirt' do
it { is_expected.not_to contain_file_line('/etc/libvirt/libvirtd.conf auth_tls')}
it { is_expected.to contain_file_line('/etc/libvirt/libvirtd.conf auth_tcp').with(:line => "auth_tcp = \"none\"") }
it { is_expected.to contain_nova_config('libvirt/live_migration_tunnelled').with_value('<SERVICE DEFAULT>') }
it { is_expected.to contain_nova_config('libvirt/live_migration_completion_timeout').with_value('<SERVICE DEFAULT>') }
it { is_expected.to contain_nova_config('libvirt/live_migration_progress_timeout').with_value('<SERVICE DEFAULT>') }
end
context 'with override_uuid enabled' do
@ -81,9 +83,13 @@ describe 'nova::migration::libvirt' do
let :params do
{
:live_migration_tunnelled => true,
:live_migration_completion_timeout => '1500',
:live_migration_progress_timeout => '1500',
}
end
it { is_expected.to contain_nova_config('libvirt/live_migration_tunnelled').with(:value => true) }
it { is_expected.to contain_nova_config('libvirt/live_migration_completion_timeout').with_value('1500') }
it { is_expected.to contain_nova_config('libvirt/live_migration_progress_timeout').with_value('1500') }
end
context 'with auth set to sasl' do