def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
volume_ref = db.volume_get(context, volume_id)
if (volume_ref['availability_zone']
and ':' in volume_ref['availability_zone']
and context.is_admin):
zone, _x, host = volume_ref['availability_zone'].partition(':')
service = db.service_get_by_args(context.elevated(), host,
'nova-volume')
if not self.service_is_up(service):
raise driver.WillNotSchedule(_("Host %s not available") % host)
# TODO(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {'host': host,
'scheduled_at': now})
return host
results = db.service_get_all_volume_sorted(context)
for result in results:
(service, volume_gigabytes) = result
if volume_gigabytes + volume_ref['size'] > FLAGS.max_gigabytes:
raise driver.NoValidHost(_("All hosts have too many "
"gigabytes"))
if self.service_is_up(service):
# NOTE(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context,
volume_id,
{'host': service['host'],
'scheduled_at': now})
return service['host']
raise driver.NoValidHost(_("No hosts found"))
def create_volume(self, context, volume_id, snapshot_id, reservations=None, image_id=None):
try:
self.driver.schedule_create_volume(context, volume_id, snapshot_id, image_id)
except Exception as ex:
with excutils.save_and_reraise_exception():
LOG.warning(_("Failed to schedule create_volume: %(ex)s") % locals())
db.volume_update(context, volume_id, {"status": "error"})
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
volume_ref = db.volume_get(context, volume_id)
if (volume_ref['availability_zone']
and ':' in volume_ref['availability_zone']
and context.is_admin):
zone, _x, host = volume_ref['availability_zone'].partition(':')
service = db.service_get_by_args(context.elevated(), host,
'nova-volume')
if not self.service_is_up(service):
raise driver.WillNotSchedule(_("Host %s not available") % host)
# TODO(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {
'host': host,
'scheduled_at': now
})
return host
results = db.service_get_all_volume_sorted(context)
for result in results:
(service, volume_gigabytes) = result
compute_ref = db.service_get_all_compute_by_host(
context, service['host'])[0]
compute_node_ref = compute_ref['compute_node'][0]
if volume_ref['size'] + volume_gigabytes > compute_node_ref[
'local_gb']:
raise driver.NoValidHost(
_("All hosts have too many "
"gigabytes"))
LOG.debug(
_("requested volume GBs = %s + used compute node GBs = %s < total compute node GBs = %s"
) % (volume_ref['size'], volume_gigabytes,
compute_node_ref['local_gb']))
if self.service_is_up(service):
# NOTE(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {
'host': service['host'],
'scheduled_at': now
})
LOG.debug(
_("volume = %s scheduled to host = %s") %
(volume_id, service['host']))
return service['host']
raise driver.NoValidHost(
_("Scheduler was unable to locate a host"
" for this request. Is the appropriate"
" service running?"))
def cast_to_volume_host(context, host, method, **kwargs):
"""Cast request to a volume host queue"""
volume_id = kwargs.get("volume_id", None)
if volume_id is not None:
now = timeutils.utcnow()
db.volume_update(context, volume_id, {"host": host, "scheduled_at": now})
rpc.cast(context, rpc.queue_get_for(context, "volume", host), {"method": method, "args": kwargs})
LOG.debug(_("Casted '%(method)s' to volume '%(host)s'") % locals())
def create_volume(self, context, volume_id, snapshot_id,
reservations=None, image_id=None):
try:
self.driver.schedule_create_volume(
context, volume_id, snapshot_id, image_id)
except Exception as ex:
with excutils.save_and_reraise_exception():
LOG.warning(_("Failed to schedule create_volume: %(ex)s") %
locals())
db.volume_update(context, volume_id, {'status': 'error'})
def test_create_volume_no_valid_host_puts_volume_in_error(self):
self._mox_schedule_method_helper('schedule_create_volume')
self.mox.StubOutWithMock(db, 'volume_update')
self.manager.driver.schedule_create_volume(self.context, '1', '2',
None).AndRaise(exception.NoValidHost(reason=''))
db.volume_update(self.context, '1', {'status': 'error'})
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.manager.create_volume,
self.context, '1', '2')
def test_create_volume_no_valid_host_puts_volume_in_error(self):
self._mox_schedule_method_helper("schedule_create_volume")
self.mox.StubOutWithMock(db, "volume_update")
self.manager.driver.schedule_create_volume(self.context, "1", "2", None).AndRaise(
exception.NoValidHost(reason="")
)
db.volume_update(self.context, "1", {"status": "error"})
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.manager.create_volume, self.context, "1", "2")
def test_create_volume_no_valid_host_puts_volume_in_error(self):
self._mox_schedule_method_helper('schedule_create_volume')
self.mox.StubOutWithMock(db, 'volume_update')
self.manager.driver.schedule_create_volume(self.context, '1', '2',
None).AndRaise(exception.NoValidHost(reason=''))
db.volume_update(self.context, '1', {'status': 'error'})
self.mox.ReplayAll()
self.assertRaises(exception.NoValidHost, self.manager.create_volume,
self.context, '1', '2')
def cast_to_volume_host(context, host, method, **kwargs):
"""Cast request to a volume host queue"""
volume_id = kwargs.get('volume_id', None)
if volume_id is not None:
now = timeutils.utcnow()
db.volume_update(context, volume_id,
{'host': host, 'scheduled_at': now})
rpc.cast(context,
rpc.queue_get_for(context, 'volume', host),
{"method": method, "args": kwargs})
LOG.debug(_("Casted '%(method)s' to volume '%(host)s'") % locals())
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks the best host based on requested drive type capability."""
volume_ref = db.volume_get(context, volume_id)
host = self._check_host_enforcement(context,
volume_ref['availability_zone'])
if host:
now = utils.utcnow()
db.volume_update(context, volume_id, {'host': host,
'scheduled_at': now})
return host
volume_type_id = volume_ref['volume_type_id']
if volume_type_id:
volume_type = volume_types.get_volume_type(context, volume_type_id)
if volume_type_id is None or\
volume_types.is_vsa_volume(volume_type_id, volume_type):
LOG.debug(_("Non-VSA volume %d"), volume_ref['id'])
return super(VsaScheduler, self).schedule_create_volume(context,
volume_id, *_args, **_kwargs)
self._print_capabilities_info()
drive_type = {
'name': volume_type['extra_specs'].get('drive_name'),
'type': volume_type['extra_specs'].get('drive_type'),
'size': int(volume_type['extra_specs'].get('drive_size')),
'rpm': volume_type['extra_specs'].get('drive_rpm'),
}
LOG.debug(_("Spawning volume %(volume_id)s with drive type "\
"%(drive_type)s"), locals())
request_spec = {'size': volume_ref['size'],
'drive_type': drive_type}
hosts = self._filter_hosts("volume", request_spec)
try:
(host, qos_cap) = self._select_hosts(request_spec, all_hosts=hosts)
except:
if volume_ref['to_vsa_id']:
db.vsa_update(context, volume_ref['to_vsa_id'],
dict(status=VsaState.FAILED))
raise
if host:
now = utils.utcnow()
db.volume_update(context, volume_id, {'host': host,
'scheduled_at': now})
self._consume_resource(qos_cap, volume_ref['size'], -1)
return host
def cast_to_volume_host(context, host, method, update_db=True, **kwargs):
"""Cast request to a volume host queue"""
if update_db:
volume_id = kwargs.get('volume_id', None)
if volume_id is not None:
now = utils.utcnow()
db.volume_update(context, volume_id,
{'host': host, 'scheduled_at': now})
rpc.cast(context,
db.queue_get_for(context, 'volume', host),
{"method": method, "args": kwargs})
LOG.debug(_("Casted '%(method)s' to volume '%(host)s'") % locals())
def schedule_live_migration(self,
context,
instance_id,
dest,
block_migration=False,
disk_over_commit=False):
"""Live migration scheduling method.
:param context:
:param instance_id:
:param dest: destination host
:param block_migration: if true, block_migration.
:param disk_over_commit: if True, consider real(not virtual)
disk size.
:return:
The host where instance is running currently.
Then scheduler send request that host.
"""
# Whether instance exists and is running.
instance_ref = db.instance_get(context, instance_id)
# Checking instance.
self._live_migration_src_check(context, instance_ref)
# Checking destination host.
self._live_migration_dest_check(context, instance_ref, dest,
block_migration, disk_over_commit)
# Common checking.
self._live_migration_common_check(context, instance_ref, dest,
block_migration, disk_over_commit)
# Changing instance_state.
values = {"vm_state": vm_states.MIGRATING}
db.instance_update(context, instance_id, values)
# Changing volume state
for volume_ref in instance_ref['volumes']:
db.volume_update(context, volume_ref['id'],
{'status': 'migrating'})
src = instance_ref['host']
cast_to_compute_host(context,
src,
'live_migration',
update_db=False,
instance_id=instance_id,
dest=dest,
block_migration=block_migration)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
volume_ref = db.volume_get(context, volume_id)
if (volume_ref['availability_zone']
and ':' in volume_ref['availability_zone']
and context.is_admin):
zone, _x, host = volume_ref['availability_zone'].partition(':')
service = db.service_get_by_args(context.elevated(), host,
'nova-volume')
if not self.service_is_up(service):
raise driver.WillNotSchedule(_("Host %s not available") % host)
# TODO(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {'host': host,
'scheduled_at': now})
return host
results = db.service_get_all_volume_sorted(context)
for result in results:
(service, volume_gigabytes) = result
compute_ref = db.service_get_all_compute_by_host(context, service['host'])[0]
compute_node_ref = compute_ref['compute_node'][0]
if volume_ref['size'] + volume_gigabytes > compute_node_ref['local_gb']:
raise driver.NoValidHost(_("All hosts have too many "
"gigabytes"))
LOG.debug(_("requested volume GBs = %s + used compute node GBs = %s < total compute node GBs = %s") % (volume_ref['size'], volume_gigabytes, compute_node_ref['local_gb']))
if self.service_is_up(service):
# NOTE(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context,
volume_id,
{'host': service['host'],
'scheduled_at': now})
LOG.debug(_("volume = %s scheduled to host = %s") % (volume_id, service['host']))
return service['host']
raise driver.NoValidHost(_("Scheduler was unable to locate a host"
" for this request. Is the appropriate"
" service running?"))
def schedule_live_migration(self, context, instance_id, dest,
block_migration=False,
disk_over_commit=False):
"""Live migration scheduling method.
:param context:
:param instance_id:
:param dest: destination host
:param block_migration: if true, block_migration.
:param disk_over_commit: if True, consider real(not virtual)
disk size.
:return:
The host where instance is running currently.
Then scheduler send request that host.
"""
# Whether instance exists and is running.
instance_ref = db.instance_get(context, instance_id)
# Checking instance.
self._live_migration_src_check(context, instance_ref)
# Checking destination host.
self._live_migration_dest_check(context, instance_ref,
dest, block_migration,
disk_over_commit)
# Common checking.
self._live_migration_common_check(context, instance_ref,
dest, block_migration,
disk_over_commit)
# Changing instance_state.
values = {"vm_state": vm_states.MIGRATING}
db.instance_update(context, instance_id, values)
# Changing volume state
for volume_ref in instance_ref['volumes']:
db.volume_update(context,
volume_ref['id'],
{'status': 'migrating'})
src = instance_ref['host']
cast_to_compute_host(context, src, 'live_migration',
update_db=False,
instance_id=instance_id,
dest=dest,
block_migration=block_migration)
def test_cast_to_volume_host_update_db_with_volume_id(self):
host = "fake_host1"
method = "fake_method"
fake_kwargs = {"volume_id": 31337, "extra_arg": "meow"}
queue = "fake_queue"
self.mox.StubOutWithMock(timeutils, "utcnow")
self.mox.StubOutWithMock(db, "volume_update")
self.mox.StubOutWithMock(rpc, "queue_get_for")
self.mox.StubOutWithMock(rpc, "cast")
timeutils.utcnow().AndReturn("fake-now")
db.volume_update(self.context, 31337, {"host": host, "scheduled_at": "fake-now"})
rpc.queue_get_for(self.context, "volume", host).AndReturn(queue)
rpc.cast(self.context, queue, {"method": method, "args": fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_volume_host(self.context, host, method, **fake_kwargs)
def test_cast_to_volume_host_update_db_with_volume_id(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'volume_id': 31337, 'extra_arg': 'meow'}
queue = 'fake_queue'
self.mox.StubOutWithMock(timeutils, 'utcnow')
self.mox.StubOutWithMock(db, 'volume_update')
self.mox.StubOutWithMock(rpc, 'queue_get_for')
self.mox.StubOutWithMock(rpc, 'cast')
timeutils.utcnow().AndReturn('fake-now')
db.volume_update(self.context, 31337, {
'host': host,
'scheduled_at': 'fake-now'
})
rpc.queue_get_for(self.context, 'volume', host).AndReturn(queue)
rpc.cast(self.context, queue, {'method': method, 'args': fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_volume_host(self.context, host, method, **fake_kwargs)
def schedule_live_migration(self, context, instance_id, dest):
"""Live migration scheduling method.
:param context:
:param instance_id:
:param dest: destination host
:return:
The host where instance is running currently.
Then scheduler send request that host.
"""
# Whether instance exists and is running.
instance_ref = db.instance_get(context, instance_id)
# Checking instance.
self._live_migration_src_check(context, instance_ref)
# Checking destination host.
self._live_migration_dest_check(context, instance_ref, dest)
# Common checking.
self._live_migration_common_check(context, instance_ref, dest)
# Changing instance_state.
db.instance_set_state(context,
instance_id,
power_state.PAUSED,
'migrating')
# Changing volume state
for volume_ref in instance_ref['volumes']:
db.volume_update(context,
volume_ref['id'],
{'status': 'migrating'})
# Return value is necessary to send request to src
# Check _schedule() in detail.
src = instance_ref['host']
return src
def schedule_live_migration(self,
context,
instance_id,
dest,
block_migration=False):
"""Live migration scheduling method.
:param context:
:param instance_id:
:param dest: destination host
:return:
The host where instance is running currently.
Then scheduler send request that host.
"""
# Whether instance exists and is running.
instance_ref = db.instance_get(context, instance_id)
# Checking instance.
self._live_migration_src_check(context, instance_ref)
# Checking destination host.
self._live_migration_dest_check(context, instance_ref, dest,
block_migration)
# Common checking.
self._live_migration_common_check(context, instance_ref, dest,
block_migration)
# Changing instance_state.
values = {"vm_state": vm_states.MIGRATING}
db.instance_update(context, instance_id, values)
# Changing volume state
for volume_ref in instance_ref['volumes']:
db.volume_update(context, volume_ref['id'],
{'status': 'migrating'})
# Return value is necessary to send request to src
# Check _schedule() in detail.
src = instance_ref['host']
return src
def test_live_migration_basic(self):
"""Test basic schedule_live_migration functionality"""
self.mox.StubOutWithMock(db, 'instance_get')
self.mox.StubOutWithMock(self.driver, '_live_migration_src_check')
self.mox.StubOutWithMock(self.driver, '_live_migration_dest_check')
self.mox.StubOutWithMock(self.driver, '_live_migration_common_check')
self.mox.StubOutWithMock(db, 'instance_update')
self.mox.StubOutWithMock(db, 'volume_update')
self.mox.StubOutWithMock(driver, 'cast_to_compute_host')
dest = 'fake_host2'
block_migration = False
disk_over_commit = False
instance = self._live_migration_instance()
db.instance_get(self.context, instance['id']).AndReturn(instance)
self.driver._live_migration_src_check(self.context, instance)
self.driver._live_migration_dest_check(self.context, instance,
dest, block_migration, disk_over_commit)
self.driver._live_migration_common_check(self.context, instance,
dest, block_migration, disk_over_commit)
db.instance_update(self.context, instance['id'],
{'vm_state': vm_states.MIGRATING})
db.volume_update(self.context, instance['volumes'][0]['id'],
{'status': 'migrating'})
db.volume_update(self.context, instance['volumes'][1]['id'],
{'status': 'migrating'})
driver.cast_to_compute_host(self.context, instance['host'],
'live_migration', update_db=False,
instance_id=instance['id'], dest=dest,
block_migration=block_migration)
self.mox.ReplayAll()
self.driver.schedule_live_migration(self.context,
instance_id=instance['id'], dest=dest,
block_migration=block_migration,
disk_over_commit=disk_over_commit)
def schedule_live_migration(self, context, instance_id, dest, block_migration=False):
"""Live migration scheduling method.
:param context:
:param instance_id:
:param dest: destination host
:return:
The host where instance is running currently.
Then scheduler send request that host.
"""
# Whether instance exists and is running.
instance_ref = db.instance_get(context, instance_id)
# Checking instance.
self._live_migration_src_check(context, instance_ref)
# Checking destination host.
self._live_migration_dest_check(context, instance_ref, dest, block_migration)
# Common checking.
self._live_migration_common_check(context, instance_ref, dest, block_migration)
# Changing instance_state.
values = {"vm_state": vm_states.MIGRATING}
db.instance_update(context, instance_id, values)
# Changing volume state
for volume_ref in instance_ref["volumes"]:
db.volume_update(context, volume_ref["id"], {"status": "migrating"})
src = instance_ref["host"]
cast_to_compute_host(
context,
src,
"live_migration",
update_db=False,
instance_id=instance_id,
dest=dest,
block_migration=block_migration,
)
def test_cast_to_volume_host_update_db_with_volume_id(self):
host = 'fake_host1'
method = 'fake_method'
fake_kwargs = {'volume_id': 31337,
'extra_arg': 'meow'}
queue = 'fake_queue'
self.mox.StubOutWithMock(utils, 'utcnow')
self.mox.StubOutWithMock(db, 'volume_update')
self.mox.StubOutWithMock(db, 'queue_get_for')
self.mox.StubOutWithMock(rpc, 'cast')
utils.utcnow().AndReturn('fake-now')
db.volume_update(self.context, 31337,
{'host': host, 'scheduled_at': 'fake-now'})
db.queue_get_for(self.context, 'volume', host).AndReturn(queue)
rpc.cast(self.context, queue,
{'method': method,
'args': fake_kwargs})
self.mox.ReplayAll()
driver.cast_to_volume_host(self.context, host, method,
update_db=True, **fake_kwargs)
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
volume_ref = db.volume_get(context, volume_id)
if (volume_ref['availability_zone']
and ':' in volume_ref['availability_zone']
and context.is_admin):
zone, _x, host = volume_ref['availability_zone'].partition(':')
service = db.service_get_by_args(context.elevated(), host,
'nova-volume')
if not self.service_is_up(service):
raise driver.WillNotSchedule(_("Host %s not available") % host)
# TODO(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {
'host': host,
'scheduled_at': now
})
return host
results = db.service_get_all_volume_sorted(context)
for result in results:
(service, volume_gigabytes) = result
if volume_gigabytes + volume_ref['size'] > FLAGS.max_gigabytes:
raise driver.NoValidHost(
_("All hosts have too many "
"gigabytes"))
if self.service_is_up(service):
# NOTE(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = datetime.datetime.utcnow()
db.volume_update(context, volume_id, {
'host': service['host'],
'scheduled_at': now
})
return service['host']
raise driver.NoValidHost(_("No hosts found"))
def schedule_create_volume(self, context, volume_id, *_args, **_kwargs):
"""Picks a host that is up and has the fewest volumes."""
elevated = context.elevated()
volume_ref = db.volume_get(context, volume_id)
if (volume_ref['availability_zone']
and ':' in volume_ref['availability_zone']
and context.is_admin):
zone, _x, host = volume_ref['availability_zone'].partition(':')
service = db.service_get_by_args(elevated, host,
'nova-volume')
if not self.service_is_up(service):
raise driver.WillNotSchedule(_("Host %s not available") % host)
# TODO(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = utils.utcnow()
db.volume_update(context, volume_id, {'host': host,
'scheduled_at': now})
return host
results = db.service_get_all_volume_sorted(elevated)
for result in results:
(service, volume_gigabytes) = result
if volume_gigabytes + volume_ref['size'] > FLAGS.max_gigabytes:
raise driver.NoValidHost(_("Not enough allocatable volume"
"gigabytes remaining"))
if self.service_is_up(service):
# NOTE(vish): this probably belongs in the manager, if we
# can generalize this somehow
now = utils.utcnow()
db.volume_update(context,
volume_id,
{'host': service['host'],
'scheduled_at': now})
return service['host']
raise driver.NoValidHost(_("Scheduler was unable to locate a host"
" for this request. Is the appropriate"
" service running?"))
def _update(self, *args, **kwargs):
db.volume_update(*args, **kwargs)
def test_live_migration_all_checks_pass(self):
"""Test live migration when all checks pass."""
self.mox.StubOutWithMock(db, 'instance_get')
self.mox.StubOutWithMock(db, 'service_get_all_by_topic')
self.mox.StubOutWithMock(utils, 'service_is_up')
self.mox.StubOutWithMock(db, 'service_get_all_compute_by_host')
self.mox.StubOutWithMock(self.driver, '_get_compute_info')
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
self.mox.StubOutWithMock(db, 'queue_get_for')
self.mox.StubOutWithMock(rpc, 'call')
self.mox.StubOutWithMock(rpc, 'cast')
self.mox.StubOutWithMock(db, 'instance_update')
self.mox.StubOutWithMock(db, 'volume_update')
self.mox.StubOutWithMock(driver, 'cast_to_compute_host')
dest = 'fake_host2'
block_migration = True
disk_over_commit = True
instance = self._live_migration_instance()
db.instance_get(self.context, instance['id']).AndReturn(instance)
# Source checks (volume and source compute are up)
db.service_get_all_by_topic(self.context, 'volume').AndReturn(
['fake_service'])
utils.service_is_up('fake_service').AndReturn(True)
db.service_get_all_compute_by_host(self.context,
instance['host']).AndReturn(['fake_service2'])
utils.service_is_up('fake_service2').AndReturn(True)
# Destination checks (compute is up, enough memory, disk)
db.service_get_all_compute_by_host(self.context,
dest).AndReturn(['fake_service3'])
utils.service_is_up('fake_service3').AndReturn(True)
# assert_compute_node_has_enough_memory()
self.driver._get_compute_info(self.context, dest,
'memory_mb').AndReturn(2048)
db.instance_get_all_by_host(self.context, dest).AndReturn(
[dict(memory_mb=256), dict(memory_mb=512)])
# assert_compute_node_has_enough_disk()
db.queue_get_for(self.context, FLAGS.compute_topic,
dest).AndReturn('dest_queue1')
rpc.call(self.context, 'dest_queue1',
{'method': 'update_available_resource'})
self.driver._get_compute_info(self.context, dest,
'disk_available_least').AndReturn(1025)
db.queue_get_for(self.context, FLAGS.compute_topic,
instance['host']).AndReturn('src_queue1')
rpc.call(self.context, 'src_queue1',
{'method': 'get_instance_disk_info',
'args': {'instance_name': instance['name']}}).AndReturn(
json.dumps([{'disk_size': 1024 * (1024 ** 3)}]))
# Common checks (shared storage ok, same hypervisor,e tc)
db.queue_get_for(self.context, FLAGS.compute_topic,
dest).AndReturn('dest_queue')
db.queue_get_for(self.context, FLAGS.compute_topic,
instance['host']).AndReturn('src_queue')
tmp_filename = 'test-filename'
rpc.call(self.context, 'dest_queue',
{'method': 'create_shared_storage_test_file'}
).AndReturn(tmp_filename)
rpc.call(self.context, 'src_queue',
{'method': 'check_shared_storage_test_file',
'args': {'filename': tmp_filename}}).AndReturn(False)
rpc.call(self.context, 'dest_queue',
{'method': 'cleanup_shared_storage_test_file',
'args': {'filename': tmp_filename}})
db.service_get_all_compute_by_host(self.context, dest).AndReturn(
[{'compute_node': [{'hypervisor_type': 'xen',
'hypervisor_version': 1}]}])
# newer hypervisor version for src
db.service_get_all_compute_by_host(self.context,
instance['host']).AndReturn(
[{'compute_node': [{'hypervisor_type': 'xen',
'hypervisor_version': 1,
'cpu_info': 'fake_cpu_info'}]}])
db.queue_get_for(self.context, FLAGS.compute_topic,
dest).AndReturn('dest_queue')
rpc.call(self.context, 'dest_queue',
{'method': 'compare_cpu',
'args': {'cpu_info': 'fake_cpu_info'}}).AndReturn(True)
db.instance_update(self.context, instance['id'],
{'vm_state': vm_states.MIGRATING})
db.volume_update(self.context, instance['volumes'][0]['id'],
{'status': 'migrating'})
db.volume_update(self.context, instance['volumes'][1]['id'],
{'status': 'migrating'})
driver.cast_to_compute_host(self.context, instance['host'],
'live_migration', update_db=False,
instance_id=instance['id'], dest=dest,
block_migration=block_migration)
self.mox.ReplayAll()
result = self.driver.schedule_live_migration(self.context,
instance_id=instance['id'], dest=dest,
block_migration=block_migration,
disk_over_commit=disk_over_commit)
self.assertEqual(result, None)
def _update(self, *args, **kwargs):
db.volume_update(*args, **kwargs)
