def test_migrate_none_or_zero_ratio_with_none_ratio_conf(self):
cn1 = fake_compute_obj.obj_clone()
cn1._context = self.context
cn1.create()
db.compute_node_update(
self.context, cn1.id, {
'cpu_allocation_ratio': 0.0,
'disk_allocation_ratio': 0.0,
'ram_allocation_ratio': 0.0
})
self.flags(initial_cpu_allocation_ratio=32.0)
self.flags(initial_ram_allocation_ratio=8.0)
self.flags(initial_disk_allocation_ratio=2.0)
res = compute_node.migrate_empty_ratio(self.context, 1)
self.assertEqual(res, (1, 1))
# the ratio is refreshed to CONF.initial_xxx_allocation_ratio
# beacause CONF.xxx_allocation_ratio is None
cns = db.compute_node_get_all(self.context)
# the ratio is refreshed to CONF.xxx_allocation_ratio
for cn in cns:
for x in ['cpu', 'disk', 'ram']:
conf_key = 'initial_%s_allocation_ratio' % x
key = '%s_allocation_ratio' % x
self.assertEqual(getattr(CONF, conf_key), cn[key])
def test_migrate_none_or_zero_ratio_with_none_ratio_conf(self):
cn1 = fake_compute_obj.obj_clone()
cn1._context = self.context
cn1.create()
db.compute_node_update(self.context, cn1.id,
{'cpu_allocation_ratio': 0.0,
'disk_allocation_ratio': 0.0,
'ram_allocation_ratio': 0.0})
self.flags(initial_cpu_allocation_ratio=32.0)
self.flags(initial_ram_allocation_ratio=8.0)
self.flags(initial_disk_allocation_ratio=2.0)
res = compute_node.migrate_empty_ratio(self.context, 1)
self.assertEqual(res, (1, 1))
# the ratio is refreshed to CONF.initial_xxx_allocation_ratio
# beacause CONF.xxx_allocation_ratio is None
cns = db.compute_node_get_all(self.context)
# the ratio is refreshed to CONF.xxx_allocation_ratio
for cn in cns:
for x in ['cpu', 'disk', 'ram']:
conf_key = 'initial_%s_allocation_ratio' % x
key = '%s_allocation_ratio' % x
self.assertEqual(getattr(CONF, conf_key), cn[key])
def test_migrate_empty_ratio(self):
# we have 5 records to process, the last of which is deleted
for i in range(5):
cn = fake_compute_obj.obj_clone()
cn._context = self.context
cn.host += '-alt-%s' % i
cn.create()
db.compute_node_update(self.context, cn.id,
{'cpu_allocation_ratio': 0.0})
if i == 4:
cn.destroy()
# first only process 2
res = compute_node.migrate_empty_ratio(self.context, 2)
self.assertEqual(res, (2, 2))
# then process others - there should only be 2 found since one
# of the remaining compute nodes is deleted and gets filtered out
res = compute_node.migrate_empty_ratio(self.context, 999)
self.assertEqual(res, (2, 2))
def test_migrate_empty_ratio(self):
# we have 5 records to process, the last of which is deleted
for i in range(5):
cn = fake_compute_obj.obj_clone()
cn._context = self.context
cn.host += '-alt-%s' % i
cn.create()
db.compute_node_update(self.context, cn.id,
{'cpu_allocation_ratio': 0.0})
if i == 4:
cn.destroy()
# first only process 2
res = compute_node.migrate_empty_ratio(self.context, 2)
self.assertEqual(res, (2, 2))
# then process others - there should only be 2 found since one
# of the remaining compute nodes is deleted and gets filtered out
res = compute_node.migrate_empty_ratio(self.context, 999)
self.assertEqual(res, (2, 2))
def test_migrate_none_or_zero_ratio_with_not_empty_ratio(self):
cn1 = fake_compute_obj.obj_clone()
cn1._context = self.context
cn1.create()
db.compute_node_update(self.context, cn1.id,
{'cpu_allocation_ratio': 32.0,
'ram_allocation_ratio': 4.0,
'disk_allocation_ratio': 3.0})
res = compute_node.migrate_empty_ratio(self.context, 1)
# the non-empty ratio will not be refreshed
self.assertEqual(res, (0, 0))
cns = db.compute_node_get_all(self.context)
for cn in cns:
self.assertEqual(32.0, cn['cpu_allocation_ratio'])
self.assertEqual(4.0, cn['ram_allocation_ratio'])
self.assertEqual(3.0, cn['disk_allocation_ratio'])
def test_migrate_none_or_zero_ratio_with_not_empty_ratio(self):
cn1 = fake_compute_obj.obj_clone()
cn1._context = self.context
cn1.create()
db.compute_node_update(self.context, cn1.id,
{'cpu_allocation_ratio': 32.0,
'ram_allocation_ratio': 4.0,
'disk_allocation_ratio': 3.0})
res = compute_node.migrate_empty_ratio(self.context, 1)
# the non-empty ratio will not be refreshed
self.assertEqual(res, (0, 0))
cns = db.compute_node_get_all(self.context)
for cn in cns:
self.assertEqual(32.0, cn['cpu_allocation_ratio'])
self.assertEqual(4.0, cn['ram_allocation_ratio'])
self.assertEqual(3.0, cn['disk_allocation_ratio'])