def run(events_dir):
"""Run Treadmill master scheduler."""
scheduler.DIMENSION_COUNT = 3
cell_master = master.Master(
zkbackend.ZkBackend(context.GLOBAL.zk.conn), context.GLOBAL.cell,
events_dir)
cell_master.run()
def run(root):
"""Run scheduler with fs backend."""
treadmill_sched.DIMENSION_COUNT = 3
cell_master = master.Master(fsbackend.FsBackend(root),
context.GLOBAL.cell)
cell_master.run_loop()
def setUp(self):
super(MasterTest, self).setUp()
scheduler.DIMENSION_COUNT = 3
self.root = tempfile.mkdtemp()
os.environ['TREADMILL_MASTER_ROOT'] = self.root
backend = zkbackend.ZkBackend(kazoo.client.KazooClient())
self.master = master.Master(backend, 'test-cell')
# Use 111 to assert on zkhandle value.
# Disable the exit on exception hack for tests
self.old_exit_on_unhandled = treadmill.utils.exit_on_unhandled
treadmill.utils.exit_on_unhandled = mock.Mock(side_effect=lambda x: x)
def test_readonly_master(self):
"""Tests the ZK operations of a readonly master."""
zk_content = {
'server.presence': {
'test1.xx.com': {},
'test2.xx.com': {},
},
'cell': {
'pod:pod1': {},
},
'buckets': {
'pod:pod1': {
'traits': None,
},
'rack:1234': {
'traits': None,
'parent': 'pod:pod1',
},
},
'identity-groups': {},
'partitions': {},
'servers': {
'test1.xx.com': {
'memory': '16G',
'disk': '128G',
'cpu': '400%',
'parent': 'rack:1234',
'up_since': 100,
},
'test2.xx.com': {
'memory': '16G',
'disk': '128G',
'cpu': '400%',
'parent': 'rack:1234',
'up_since': 200,
},
},
# Comments indicate zkutils functions that would get called
# for each entity if the master weren't in readonly mode
'placement': { # ensure_exists and put on each placement
'test1.xx.com': {
'.data': """
state: up
since: 100
""",
'xxx.app1#1234': '', # on two servers: ensure_deleted
'xxx.app2#2345': '', # not scheduled: ensure_deleted
},
'test2.xx.com': {
'.data': """
state: up
since: 100
""",
'xxx.app1#1234': '', # on two servers: ensure_deleted
}
},
'scheduled': {
'xxx.app1#1234': {
'affinity': 'app1',
'memory': '1G',
'disk': '1G',
'cpu': '100%',
},
'xxx.app3#6789': { # gets scheduled by init_schedule: put
'affinity': 'app3',
'memory': '1G',
'disk': '1G',
'cpu': '100%',
},
}
}
time.time.return_value = 500
self.make_mock_zk(zk_content)
ro_master = master.Master(
zkbackend.ZkReadonlyBackend(kazoo.client.KazooClient()),
'test-cell',
)
ro_master.load_model()
ro_master.init_schedule()
self.assertFalse(treadmill.zkutils.ensure_deleted.called)
self.assertFalse(treadmill.zkutils.ensure_exists.called)
self.assertFalse(treadmill.zkutils.put.called)