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'])