services/nodemanager/tests/test_daemon.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import time
   6 import unittest
   7
   8 import mock
   9 import pykka
  10
  11 import arvnodeman.daemon as nmdaemon
  12 from arvnodeman.jobqueue import ServerCalculator
  13 from arvnodeman.computenode.dispatch import ComputeNodeMonitorActor
  14 from . import testutil
  15 import logging
  16
  17 class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin,
  18                                      unittest.TestCase):
  19     def mock_node_start(self, **kwargs):
  20         # Make sure that every time the daemon starts a setup actor,
  21         # it gets a new mock object back.
  22         get_cloud_size = mock.MagicMock()
  23         get_cloud_size.get.return_value = kwargs["cloud_size"]
  24         mock_actor = mock.MagicMock()
  25         mock_proxy = mock.NonCallableMock(name='setup_mock_proxy',
  26                                           cloud_size=get_cloud_size,
  27                                           actor_ref=mock_actor)
  28         mock_actor.proxy.return_value = mock_proxy
  29         mock_actor.tell_proxy.return_value = mock_proxy
  30
  31         self.last_setup = mock_proxy
  32         return mock_actor
  33
  34     def mock_node_shutdown(self, **kwargs):
  35         # Make sure that every time the daemon starts a shutdown actor,
  36         # it gets a new mock object back.
  37         get_cloud_node = mock.MagicMock()
  38         if "node_monitor" in kwargs:
  39             get_cloud_node.get.return_value = kwargs["node_monitor"].proxy().cloud_node.get()
  40         mock_actor = mock.MagicMock()
  41         mock_proxy = mock.NonCallableMock(name='shutdown_mock_proxy',
  42                                           cloud_node=get_cloud_node,
  43                                           actor_ref=mock_actor)
  44
  45         mock_actor.proxy.return_value = mock_proxy
  46         self.last_shutdown = mock_proxy
  47
  48         return mock_actor
  49
  50     def make_daemon(self, cloud_nodes=[], arvados_nodes=[], want_sizes=[],
  51                     avail_sizes=None,
  52                     min_nodes=0, max_nodes=8,
  53                     shutdown_windows=[54, 5, 1],
  54                     max_total_price=None):
  55         for name in ['cloud_nodes', 'arvados_nodes', 'server_wishlist']:
  56             setattr(self, name + '_poller', mock.MagicMock(name=name + '_mock'))
  57
  58         if not avail_sizes:
  59             if cloud_nodes or want_sizes:
  60                 avail_sizes=[(c.size, {"cores": int(c.id)}) for c in cloud_nodes] + [(s, {"cores": 1}) for s in want_sizes]
  61             else:
  62                 avail_sizes=[(testutil.MockSize(1), {"cores": 1})]
  63
  64         self.arv_factory = mock.MagicMock(name='arvados_mock')
  65         api_client = mock.MagicMock(name='api_client')
  66         api_client.nodes().create().execute.side_effect = [testutil.arvados_node_mock(1),
  67                                                            testutil.arvados_node_mock(2)]
  68         self.arv_factory.return_value = api_client
  69
  70         self.cloud_factory = mock.MagicMock(name='cloud_mock')
  71         self.cloud_factory().node_start_time.return_value = time.time()
  72         self.cloud_updates = mock.MagicMock(name='updates_mock')
  73         self.timer = testutil.MockTimer(deliver_immediately=False)
  74         self.cloud_factory().node_id.side_effect = lambda node: node.id
  75         self.cloud_factory().broken.return_value = False
  76
  77         self.node_setup = mock.MagicMock(name='setup_mock')
  78         self.node_setup.start.side_effect = self.mock_node_start
  79         self.node_setup.reset_mock()
  80
  81         self.node_shutdown = mock.MagicMock(name='shutdown_mock')
  82         self.node_shutdown.start.side_effect = self.mock_node_shutdown
  83
  84         self.daemon = nmdaemon.NodeManagerDaemonActor.start(
  85             self.server_wishlist_poller, self.arvados_nodes_poller,
  86             self.cloud_nodes_poller, self.cloud_updates, self.timer,
  87             self.arv_factory, self.cloud_factory,
  88             shutdown_windows, ServerCalculator(avail_sizes),
  89             min_nodes, max_nodes, 600, 1800, 3600,
  90             self.node_setup, self.node_shutdown,
  91             max_total_price=max_total_price).proxy()
  92         if arvados_nodes is not None:
  93             self.daemon.update_arvados_nodes(arvados_nodes).get(self.TIMEOUT)
  94         if cloud_nodes is not None:
  95             self.daemon.update_cloud_nodes(cloud_nodes).get(self.TIMEOUT)
  96         if want_sizes is not None:
  97             self.daemon.update_server_wishlist(want_sizes).get(self.TIMEOUT)
  98
  99     def monitor_list(self):
 100         return pykka.ActorRegistry.get_by_class(ComputeNodeMonitorActor)
 101
 102     def monitored_arvados_nodes(self):
 103         pairings = []
 104         for future in [actor.proxy().arvados_node
 105                        for actor in self.monitor_list()]:
 106             try:
 107                 pairings.append(future.get(self.TIMEOUT))
 108             except pykka.ActorDeadError:
 109                 pass
 110         return pairings
 111
 112     def alive_monitor_count(self):
 113         return len(self.monitored_arvados_nodes())
 114
 115     def assertShutdownCancellable(self, expected=True):
 116         self.assertTrue(self.node_shutdown.start.called)
 117         self.assertIs(expected,
 118                       self.node_shutdown.start.call_args[1]['cancellable'],
 119                       "ComputeNodeShutdownActor incorrectly cancellable")
 120
 121     def test_easy_node_creation(self):
 122         size = testutil.MockSize(1)
 123         self.make_daemon(want_sizes=[size])
 124         self.stop_proxy(self.daemon)
 125         self.assertTrue(self.node_setup.start.called)
 126
 127     def check_monitors_arvados_nodes(self, *arv_nodes):
 128         self.assertItemsEqual(arv_nodes, self.monitored_arvados_nodes())
 129
 130     def test_node_pairing(self):
 131         cloud_node = testutil.cloud_node_mock(1)
 132         arv_node = testutil.arvados_node_mock(1)
 133         self.make_daemon([cloud_node], [arv_node])
 134         self.stop_proxy(self.daemon)
 135         self.check_monitors_arvados_nodes(arv_node)
 136
 137     def test_node_pairing_after_arvados_update(self):
 138         cloud_node = testutil.cloud_node_mock(2)
 139         self.make_daemon([cloud_node],
 140                          [testutil.arvados_node_mock(1, ip_address=None)])
 141         arv_node = testutil.arvados_node_mock(2)
 142         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
 143         self.stop_proxy(self.daemon)
 144         self.check_monitors_arvados_nodes(arv_node)
 145
 146     def test_arvados_node_un_and_re_paired(self):
 147         # We need to create the Arvados node mock after spinning up the daemon
 148         # to make sure it's new enough to pair with the cloud node.
 149         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(3)],
 150                          arvados_nodes=None)
 151         arv_node = testutil.arvados_node_mock(3)
 152         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
 153         self.check_monitors_arvados_nodes(arv_node)
 154         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 155         self.assertEqual(0, self.alive_monitor_count())
 156         self.daemon.update_cloud_nodes([testutil.cloud_node_mock(3)])
 157         self.stop_proxy(self.daemon)
 158         self.check_monitors_arvados_nodes(arv_node)
 159
 160     def test_old_arvados_node_not_double_assigned(self):
 161         arv_node = testutil.arvados_node_mock(3, age=9000)
 162         size = testutil.MockSize(3)
 163         self.make_daemon(arvados_nodes=[arv_node],
 164                          avail_sizes=[(size, {"cores":1})])
 165         self.daemon.update_server_wishlist([size]).get(self.TIMEOUT)
 166         self.daemon.update_server_wishlist([size, size]).get(self.TIMEOUT)
 167         self.stop_proxy(self.daemon)
 168         used_nodes = [call[1].get('arvados_node')
 169                       for call in self.node_setup.start.call_args_list]
 170         self.assertEqual(2, len(used_nodes))
 171         self.assertIn(arv_node, used_nodes)
 172         self.assertIn(None, used_nodes)
 173
 174     def test_node_count_satisfied(self):
 175         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(1)],
 176                          want_sizes=[testutil.MockSize(1)])
 177         self.stop_proxy(self.daemon)
 178         self.assertFalse(self.node_setup.start.called)
 179
 180     def test_dont_count_missing_as_busy(self):
 181         size = testutil.MockSize(1)
 182         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(1, size=size),
 183                                       testutil.cloud_node_mock(2, size=size)],
 184                          arvados_nodes=[testutil.arvados_node_mock(1),
 185                                         testutil.arvados_node_mock(
 186                                             2,
 187                                             last_ping_at='1970-01-01T01:02:03.04050607Z')],
 188                          want_sizes=[size, size])
 189         self.stop_proxy(self.daemon)
 190         self.assertTrue(self.node_setup.start.called)
 191
 192     def test_missing_counts_towards_max(self):
 193         size = testutil.MockSize(1)
 194         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(1, size=size),
 195                                       testutil.cloud_node_mock(2, size=size)],
 196                          arvados_nodes=[testutil.arvados_node_mock(1),
 197                                         testutil.arvados_node_mock(2, last_ping_at='1970-01-01T01:02:03.04050607Z')],
 198                          want_sizes=[size, size],
 199                          max_nodes=2)
 200         self.stop_proxy(self.daemon)
 201         self.assertFalse(self.node_setup.start.called)
 202
 203     def test_excess_counts_missing(self):
 204         size = testutil.MockSize(1)
 205         cloud_nodes = [testutil.cloud_node_mock(1, size=size), testutil.cloud_node_mock(2, size=size)]
 206         self.make_daemon(cloud_nodes=cloud_nodes,
 207                          arvados_nodes=[testutil.arvados_node_mock(1),
 208                                         testutil.arvados_node_mock(2, last_ping_at='1970-01-01T01:02:03.04050607Z')],
 209                          want_sizes=[size])
 210         self.assertEqual(2, self.alive_monitor_count())
 211         for mon_ref in self.monitor_list():
 212             self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT)
 213         self.assertEqual(1, self.node_shutdown.start.call_count)
 214
 215     def test_missing_shutdown_not_excess(self):
 216         size = testutil.MockSize(1)
 217         cloud_nodes = [testutil.cloud_node_mock(1, size=size), testutil.cloud_node_mock(2, size=size)]
 218         self.make_daemon(cloud_nodes=cloud_nodes,
 219                          arvados_nodes=[testutil.arvados_node_mock(1),
 220                                         testutil.arvados_node_mock(2, last_ping_at='1970-01-01T01:02:03.04050607Z')],
 221                          want_sizes=[size])
 222
 223         get_cloud_node = mock.MagicMock(name="get_cloud_node")
 224         get_cloud_node.get.return_value = cloud_nodes[1]
 225         mock_node_monitor = mock.MagicMock()
 226         mock_node_monitor.proxy.return_value = mock.NonCallableMock(cloud_node=get_cloud_node)
 227         mock_shutdown = self.node_shutdown.start(node_monitor=mock_node_monitor)
 228
 229         self.daemon.cloud_nodes.get()[cloud_nodes[1].id].shutdown_actor = mock_shutdown.proxy()
 230
 231         self.assertEqual(2, self.alive_monitor_count())
 232         for mon_ref in self.monitor_list():
 233             self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT)
 234         self.assertEqual(1, self.node_shutdown.start.call_count)
 235
 236     def test_booting_nodes_counted(self):
 237         cloud_node = testutil.cloud_node_mock(1)
 238         arv_node = testutil.arvados_node_mock(1)
 239         server_wishlist = [testutil.MockSize(1)] * 2
 240         self.make_daemon([cloud_node], [arv_node], server_wishlist)
 241         self.daemon.max_nodes.get(self.TIMEOUT)
 242         self.assertTrue(self.node_setup.start.called)
 243         self.daemon.update_server_wishlist(server_wishlist).get(self.TIMEOUT)
 244         self.stop_proxy(self.daemon)
 245         self.assertEqual(1, self.node_setup.start.call_count)
 246
 247     def test_boot_new_node_when_all_nodes_busy(self):
 248         size = testutil.MockSize(2)
 249         arv_node = testutil.arvados_node_mock(2, job_uuid=True)
 250         self.make_daemon([testutil.cloud_node_mock(2, size=size)], [arv_node],
 251                          [size], avail_sizes=[(size, {"cores":1})])
 252         self.busywait(lambda: self.node_setup.start.called)
 253         self.stop_proxy(self.daemon)
 254         self.assertTrue(self.node_setup.start.called)
 255
 256     def test_boot_new_node_below_min_nodes(self):
 257         min_size = testutil.MockSize(1)
 258         wish_size = testutil.MockSize(3)
 259         avail_sizes = [(min_size, {"cores": 1}),
 260                        (wish_size, {"cores": 3})]
 261         self.make_daemon([], [], None, avail_sizes=avail_sizes, min_nodes=2)
 262         self.daemon.update_server_wishlist([wish_size]).get(self.TIMEOUT)
 263         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 264         self.daemon.update_server_wishlist([wish_size]).get(self.TIMEOUT)
 265         self.stop_proxy(self.daemon)
 266         self.assertEqual([wish_size, min_size],
 267                          [call[1].get('cloud_size')
 268                           for call in self.node_setup.start.call_args_list])
 269
 270     def test_no_new_node_when_ge_min_nodes_busy(self):
 271         size = testutil.MockSize(2)
 272         cloud_nodes = [testutil.cloud_node_mock(n, size=size) for n in range(1, 4)]
 273         arv_nodes = [testutil.arvados_node_mock(n, job_uuid=True)
 274                      for n in range(1, 4)]
 275         self.make_daemon(cloud_nodes, arv_nodes, [], min_nodes=2)
 276         self.stop_proxy(self.daemon)
 277         self.assertEqual(0, self.node_setup.start.call_count)
 278
 279     def test_no_new_node_when_max_nodes_busy(self):
 280         size = testutil.MockSize(3)
 281         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(3)],
 282                          arvados_nodes=[testutil.arvados_node_mock(3, job_uuid=True)],
 283                          want_sizes=[size],
 284                          max_nodes=1)
 285         self.stop_proxy(self.daemon)
 286         self.assertFalse(self.node_setup.start.called)
 287
 288     def start_node_boot(self, cloud_node=None, arv_node=None, id_num=1):
 289         if cloud_node is None:
 290             cloud_node = testutil.cloud_node_mock(id_num)
 291         id_num = int(cloud_node.id)
 292         if arv_node is None:
 293             arv_node = testutil.arvados_node_mock(id_num)
 294         self.make_daemon(want_sizes=[testutil.MockSize(id_num)],
 295                          avail_sizes=[(testutil.MockSize(id_num), {"cores":1})])
 296         self.daemon.max_nodes.get(self.TIMEOUT)
 297         self.assertEqual(1, self.node_setup.start.call_count)
 298         self.last_setup.cloud_node.get.return_value = cloud_node
 299         self.last_setup.arvados_node.get.return_value = arv_node
 300         return self.last_setup
 301
 302     def test_new_node_when_booted_node_not_usable(self):
 303         cloud_node = testutil.cloud_node_mock(4)
 304         arv_node = testutil.arvados_node_mock(4, crunch_worker_state='down')
 305         setup = self.start_node_boot(cloud_node, arv_node)
 306         self.daemon.node_up(setup).get(self.TIMEOUT)
 307         self.assertEqual(1, self.alive_monitor_count())
 308         self.daemon.update_arvados_nodes([arv_node])
 309         self.daemon.update_cloud_nodes([cloud_node])
 310         self.monitor_list()[0].proxy().cloud_node_start_time = time.time()-1801
 311         self.daemon.update_server_wishlist(
 312             [testutil.MockSize(4)]).get(self.TIMEOUT)
 313         self.stop_proxy(self.daemon)
 314         self.assertEqual(2, self.node_setup.start.call_count)
 315
 316     def test_no_duplication_when_booting_node_listed_fast(self):
 317         # Test that we don't start two ComputeNodeMonitorActors when
 318         # we learn about a booting node through a listing before we
 319         # get the "node up" message from CloudNodeSetupActor.
 320         cloud_node = testutil.cloud_node_mock(1)
 321         setup = self.start_node_boot(cloud_node)
 322         self.daemon.update_cloud_nodes([cloud_node])
 323         self.daemon.node_up(setup).get(self.TIMEOUT)
 324         self.assertEqual(1, self.alive_monitor_count())
 325
 326     def test_no_duplication_when_booted_node_listed(self):
 327         cloud_node = testutil.cloud_node_mock(2)
 328         setup = self.start_node_boot(cloud_node, id_num=2)
 329         self.daemon.node_up(setup)
 330         self.daemon.update_cloud_nodes([cloud_node]).get(self.TIMEOUT)
 331         self.assertEqual(1, self.alive_monitor_count())
 332
 333     def test_node_counted_after_boot_with_slow_listing(self):
 334         # Test that, after we boot a compute node, we assume it exists
 335         # even it doesn't appear in the listing (e.g., because of delays
 336         # propagating tags).
 337         setup = self.start_node_boot()
 338         self.daemon.node_up(setup).get(self.TIMEOUT)
 339         self.assertEqual(1, self.alive_monitor_count())
 340         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 341         self.assertEqual(1, self.alive_monitor_count())
 342
 343     def test_booted_unlisted_node_counted(self):
 344         setup = self.start_node_boot(id_num=1)
 345         self.daemon.node_up(setup)
 346         self.daemon.update_server_wishlist(
 347             [testutil.MockSize(1)]).get(self.TIMEOUT)
 348         self.stop_proxy(self.daemon)
 349         self.assertEqual(1, self.node_setup.start.call_count)
 350
 351     def test_booted_node_can_shutdown(self):
 352         setup = self.start_node_boot()
 353         self.daemon.node_up(setup).get(self.TIMEOUT)
 354         self.assertEqual(1, self.alive_monitor_count())
 355         monitor = self.monitor_list()[0].proxy()
 356         self.daemon.update_server_wishlist([])
 357         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 358         self.stop_proxy(self.daemon)
 359         self.assertTrue(self.node_shutdown.start.called,
 360                         "daemon did not shut down booted node on offer")
 361
 362     def test_booted_node_lifecycle(self):
 363         cloud_node = testutil.cloud_node_mock(6)
 364         setup = self.start_node_boot(cloud_node, id_num=6)
 365         self.daemon.node_up(setup).get(self.TIMEOUT)
 366         self.assertEqual(1, self.alive_monitor_count())
 367         monitor = self.monitor_list()[0].proxy()
 368         self.daemon.update_server_wishlist([])
 369         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 370         self.assertShutdownCancellable(True)
 371         shutdown = self.node_shutdown.start().proxy()
 372         shutdown.cloud_node.get.return_value = cloud_node
 373         self.daemon.node_finished_shutdown(shutdown).get(self.TIMEOUT)
 374         self.daemon.update_cloud_nodes([])
 375         self.assertTrue(shutdown.stop.called,
 376                         "shutdown actor not stopped after finishing")
 377         self.assertTrue(monitor.actor_ref.actor_stopped.wait(self.TIMEOUT),
 378                         "monitor for booted node not stopped after shutdown")
 379         self.daemon.update_server_wishlist(
 380             [testutil.MockSize(2)]).get(self.TIMEOUT)
 381         self.stop_proxy(self.daemon)
 382         self.assertTrue(self.node_setup.start.called,
 383                         "second node not started after booted node stopped")
 384
 385     def test_booted_node_shut_down_when_never_listed(self):
 386         setup = self.start_node_boot()
 387         self.cloud_factory().node_start_time.return_value = time.time() - 3601
 388         self.daemon.node_up(setup).get(self.TIMEOUT)
 389         self.assertEqual(1, self.alive_monitor_count())
 390         self.assertFalse(self.node_shutdown.start.called)
 391         now = time.time()
 392         self.monitor_list()[0].tell_proxy().consider_shutdown()
 393         self.busywait(lambda: self.node_shutdown.start.called)
 394         self.stop_proxy(self.daemon)
 395         self.assertShutdownCancellable(False)
 396
 397     def test_booted_node_shut_down_when_never_paired(self):
 398         cloud_node = testutil.cloud_node_mock(2)
 399         setup = self.start_node_boot(cloud_node)
 400         self.cloud_factory().node_start_time.return_value = time.time() - 3601
 401         self.daemon.node_up(setup).get(self.TIMEOUT)
 402         self.assertEqual(1, self.alive_monitor_count())
 403         self.daemon.update_cloud_nodes([cloud_node])
 404         self.monitor_list()[0].tell_proxy().consider_shutdown()
 405         self.busywait(lambda: self.node_shutdown.start.called)
 406         self.stop_proxy(self.daemon)
 407         self.assertShutdownCancellable(False)
 408
 409     def test_booted_node_shut_down_when_never_working(self):
 410         cloud_node = testutil.cloud_node_mock(4)
 411         arv_node = testutil.arvados_node_mock(4, crunch_worker_state='down')
 412         setup = self.start_node_boot(cloud_node, arv_node)
 413         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
 414         self.daemon.node_up(setup).get(self.TIMEOUT)
 415         self.assertEqual(1, self.alive_monitor_count())
 416         self.monitor_list()[0].proxy().cloud_node_start_time = time.time()-3601
 417         self.daemon.update_cloud_nodes([cloud_node])
 418         self.busywait(lambda: self.node_shutdown.start.called)
 419         self.stop_proxy(self.daemon)
 420         self.assertShutdownCancellable(False)
 421
 422     def test_node_that_pairs_not_considered_failed_boot(self):
 423         cloud_node = testutil.cloud_node_mock(3)
 424         arv_node = testutil.arvados_node_mock(3)
 425         setup = self.start_node_boot(cloud_node, arv_node)
 426         self.daemon.node_up(setup).get(self.TIMEOUT)
 427         self.assertEqual(1, self.alive_monitor_count())
 428         self.daemon.update_cloud_nodes([cloud_node])
 429         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
 430         self.timer.deliver()
 431         self.stop_proxy(self.daemon)
 432         self.assertFalse(self.node_shutdown.start.called)
 433
 434     def test_node_that_pairs_busy_not_considered_failed_boot(self):
 435         cloud_node = testutil.cloud_node_mock(5)
 436         arv_node = testutil.arvados_node_mock(5, job_uuid=True)
 437         setup = self.start_node_boot(cloud_node, arv_node)
 438         self.daemon.node_up(setup).get(self.TIMEOUT)
 439         self.assertEqual(1, self.alive_monitor_count())
 440         self.daemon.update_cloud_nodes([cloud_node])
 441         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
 442         self.timer.deliver()
 443         self.stop_proxy(self.daemon)
 444         self.assertFalse(self.node_shutdown.start.called)
 445
 446     def test_booting_nodes_shut_down(self):
 447         self.make_daemon(want_sizes=[testutil.MockSize(1)])
 448         self.daemon.update_server_wishlist([]).get(self.TIMEOUT)
 449         self.stop_proxy(self.daemon)
 450         self.assertTrue(self.last_setup.stop_if_no_cloud_node.called)
 451
 452     def test_all_booting_nodes_tried_to_shut_down(self):
 453         size = testutil.MockSize(2)
 454         self.make_daemon(want_sizes=[size], avail_sizes=[(size, {"cores":1})])
 455         self.daemon.max_nodes.get(self.TIMEOUT)
 456         setup1 = self.last_setup
 457         setup1.stop_if_no_cloud_node().get.return_value = False
 458         setup1.stop_if_no_cloud_node.reset_mock()
 459         self.daemon.update_server_wishlist([size, size]).get(self.TIMEOUT)
 460         self.daemon.max_nodes.get(self.TIMEOUT)
 461         self.assertIsNot(setup1, self.last_setup)
 462         self.last_setup.stop_if_no_cloud_node().get.return_value = True
 463         self.last_setup.stop_if_no_cloud_node.reset_mock()
 464         self.daemon.update_server_wishlist([]).get(self.TIMEOUT)
 465         self.daemon.max_nodes.get(self.TIMEOUT)
 466         self.stop_proxy(self.daemon)
 467         self.assertEqual(1, self.last_setup.stop_if_no_cloud_node.call_count)
 468         self.assertTrue(setup1.stop_if_no_cloud_node.called)
 469
 470     def test_shutdown_declined_at_wishlist_capacity(self):
 471         cloud_node = testutil.cloud_node_mock(1)
 472         arv_node = testutil.arvados_node_mock(1)
 473         size = testutil.MockSize(1)
 474         self.make_daemon(cloud_nodes=[cloud_node], arvados_nodes=[arv_node], want_sizes=[size])
 475         self.assertEqual(1, self.alive_monitor_count())
 476         monitor = self.monitor_list()[0].proxy()
 477         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 478         self.stop_proxy(self.daemon)
 479         self.assertFalse(self.node_shutdown.start.called)
 480
 481     def test_shutdown_declined_below_min_nodes(self):
 482         cloud_node = testutil.cloud_node_mock(1)
 483         arv_node = testutil.arvados_node_mock(1)
 484         self.make_daemon(cloud_nodes=[cloud_node], arvados_nodes=[arv_node], min_nodes=1)
 485         self.assertEqual(1, self.alive_monitor_count())
 486         monitor = self.monitor_list()[0].proxy()
 487         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 488         self.stop_proxy(self.daemon)
 489         self.assertFalse(self.node_shutdown.start.called)
 490
 491     def test_shutdown_accepted_below_capacity(self):
 492         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock()])
 493         self.assertEqual(1, self.alive_monitor_count())
 494         monitor = self.monitor_list()[0].proxy()
 495         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 496         self.stop_proxy(self.daemon)
 497         self.assertTrue(self.node_shutdown.start.called)
 498
 499     def test_shutdown_declined_when_idle_and_job_queued(self):
 500         size = testutil.MockSize(1)
 501         cloud_nodes = [testutil.cloud_node_mock(n, size=size) for n in [3, 4]]
 502         arv_nodes = [testutil.arvados_node_mock(3, job_uuid=True),
 503                      testutil.arvados_node_mock(4, job_uuid=None)]
 504         self.make_daemon(cloud_nodes, arv_nodes, [size])
 505         self.assertEqual(2, self.alive_monitor_count())
 506         for mon_ref in self.monitor_list():
 507             monitor = mon_ref.proxy()
 508             if monitor.cloud_node.get(self.TIMEOUT) is cloud_nodes[-1]:
 509                 break
 510         else:
 511             self.fail("monitor for idle node not found")
 512         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 513         self.stop_proxy(self.daemon)
 514         self.assertFalse(self.node_shutdown.start.called)
 515
 516     def test_node_shutdown_after_cancelled_shutdown(self):
 517         cloud_node = testutil.cloud_node_mock(5)
 518         self.make_daemon([cloud_node], [testutil.arvados_node_mock(5)])
 519         self.assertEqual(1, self.alive_monitor_count())
 520         monitor = self.monitor_list()[0].proxy()
 521         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 522         self.last_shutdown.success.get.return_value = False
 523         self.daemon.node_finished_shutdown(self.last_shutdown).get(self.TIMEOUT)
 524         self.assertEqual(1, self.alive_monitor_count())
 525
 526         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 527         self.last_shutdown.success.get.return_value = True
 528         self.last_shutdown.stop.side_effect = lambda: monitor.stop()
 529         self.daemon.node_finished_shutdown(self.last_shutdown).get(self.TIMEOUT)
 530         self.assertEqual(0, self.alive_monitor_count())
 531
 532     def test_nodes_shutting_down_replaced_below_max_nodes(self):
 533         size = testutil.MockSize(6)
 534         cloud_node = testutil.cloud_node_mock(6, size=size)
 535         self.make_daemon([cloud_node], [testutil.arvados_node_mock(6, crunch_worker_state='down')],
 536                          avail_sizes=[(size, {"cores":1})])
 537         self.assertEqual(1, self.alive_monitor_count())
 538         monitor = self.monitor_list()[0].proxy()
 539         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 540         self.assertTrue(self.node_shutdown.start.called)
 541         self.daemon.update_server_wishlist(
 542             [testutil.MockSize(6)]).get(self.TIMEOUT)
 543         self.stop_proxy(self.daemon)
 544         self.assertTrue(self.node_setup.start.called)
 545
 546     def test_nodes_shutting_down_not_replaced_at_max_nodes(self):
 547         cloud_node = testutil.cloud_node_mock(7)
 548         self.make_daemon([cloud_node], [testutil.arvados_node_mock(7)],
 549                          max_nodes=1)
 550         self.assertEqual(1, self.alive_monitor_count())
 551         monitor = self.monitor_list()[0].proxy()
 552         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 553         self.assertTrue(self.node_shutdown.start.called)
 554         self.daemon.update_server_wishlist(
 555             [testutil.MockSize(7)]).get(self.TIMEOUT)
 556         self.stop_proxy(self.daemon)
 557         self.assertFalse(self.node_setup.start.called)
 558
 559     def test_nodes_shutting_down_count_against_excess(self):
 560         size = testutil.MockSize(8)
 561         cloud_nodes = [testutil.cloud_node_mock(n, size=size) for n in [8, 9]]
 562         arv_nodes = [testutil.arvados_node_mock(n, size=size) for n in [8, 9]]
 563         self.make_daemon(cloud_nodes, arv_nodes, [size],
 564                          avail_sizes=[(size, {"cores":1})])
 565         self.assertEqual(2, self.alive_monitor_count())
 566         for mon_ref in self.monitor_list():
 567             self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT)
 568         self.assertEqual(1, self.node_shutdown.start.call_count)
 569
 570     def test_clean_shutdown_waits_for_node_setup_finish(self):
 571         new_node = self.start_node_boot()
 572         new_node.stop_if_no_cloud_node().get.return_value = False
 573         new_node.stop_if_no_cloud_node.reset_mock()
 574         self.daemon.shutdown().get(self.TIMEOUT)
 575         self.assertTrue(new_node.stop_if_no_cloud_node.called)
 576         self.daemon.node_up(new_node).get(self.TIMEOUT)
 577         self.assertTrue(new_node.stop.called)
 578         self.timer.deliver()
 579         self.assertTrue(
 580             self.daemon.actor_ref.actor_stopped.wait(self.TIMEOUT))
 581
 582     def test_wishlist_ignored_after_shutdown(self):
 583         new_node = self.start_node_boot()
 584         new_node.stop_if_no_cloud_node().get.return_value = False
 585         new_node.stop_if_no_cloud_node.reset_mock()
 586         self.daemon.shutdown().get(self.TIMEOUT)
 587         size = testutil.MockSize(2)
 588         self.daemon.update_server_wishlist([size] * 2).get(self.TIMEOUT)
 589         self.timer.deliver()
 590         self.stop_proxy(self.daemon)
 591         self.assertEqual(1, self.node_setup.start.call_count)
 592
 593     def test_shutdown_actor_stopped_when_cloud_node_delisted(self):
 594         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock()])
 595         self.assertEqual(1, self.alive_monitor_count())
 596         monitor = self.monitor_list()[0].proxy()
 597         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 598         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 599         self.stop_proxy(self.daemon)
 600         self.assertEqual(
 601             1, self.last_shutdown.stop.call_count)
 602
 603     def test_shutdown_actor_cleanup_copes_with_dead_actors(self):
 604         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock()])
 605         self.assertEqual(1, self.alive_monitor_count())
 606         monitor = self.monitor_list()[0].proxy()
 607         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 608         # We're mainly testing that update_cloud_nodes catches and handles
 609         # the ActorDeadError.
 610         self.last_shutdown.stop.side_effect = pykka.ActorDeadError
 611         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 612         self.stop_proxy(self.daemon)
 613         self.assertEqual(1, self.last_shutdown.stop.call_count)
 614
 615     def test_node_create_two_sizes(self):
 616         small = testutil.MockSize(1)
 617         big = testutil.MockSize(2)
 618         avail_sizes = [(testutil.MockSize(1), {"cores":1}),
 619                         (testutil.MockSize(2), {"cores":2})]
 620         self.make_daemon(want_sizes=[small, small, small, big],
 621                          avail_sizes=avail_sizes, max_nodes=4)
 622
 623         # the daemon runs in another thread, so we need to wait and see
 624         # if it does all the work we're expecting it to do before stopping it.
 625         self.busywait(lambda: self.node_setup.start.call_count == 4)
 626         booting = self.daemon.booting.get(self.TIMEOUT)
 627         self.stop_proxy(self.daemon)
 628         sizecounts = {a[0].id: 0 for a in avail_sizes}
 629         for b in booting.itervalues():
 630             sizecounts[b.cloud_size.get().id] += 1
 631         logging.info(sizecounts)
 632         self.assertEqual(3, sizecounts[small.id])
 633         self.assertEqual(1, sizecounts[big.id])
 634
 635     def test_node_max_nodes_two_sizes(self):
 636         small = testutil.MockSize(1)
 637         big = testutil.MockSize(2)
 638         avail_sizes = [(testutil.MockSize(1), {"cores":1}),
 639                         (testutil.MockSize(2), {"cores":2})]
 640         self.make_daemon(want_sizes=[small, small, small, big],
 641                          avail_sizes=avail_sizes, max_nodes=3)
 642
 643         # the daemon runs in another thread, so we need to wait and see
 644         # if it does all the work we're expecting it to do before stopping it.
 645         self.busywait(lambda: self.node_setup.start.call_count == 3)
 646         booting = self.daemon.booting.get(self.TIMEOUT)
 647         self.stop_proxy(self.daemon)
 648         sizecounts = {a[0].id: 0 for a in avail_sizes}
 649         for b in booting.itervalues():
 650             sizecounts[b.cloud_size.get().id] += 1
 651         self.assertEqual(2, sizecounts[small.id])
 652         self.assertEqual(1, sizecounts[big.id])
 653
 654     def test_wishlist_reconfigure(self):
 655         small = testutil.MockSize(1)
 656         big = testutil.MockSize(2)
 657         avail_sizes = [(small, {"cores":1}), (big, {"cores":2})]
 658
 659         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(1, small),
 660                                       testutil.cloud_node_mock(2, small),
 661                                       testutil.cloud_node_mock(3, big)],
 662                          arvados_nodes=[testutil.arvados_node_mock(1),
 663                                         testutil.arvados_node_mock(2),
 664                                         testutil.arvados_node_mock(3)],
 665                          want_sizes=[small, small, big],
 666                          avail_sizes=avail_sizes)
 667
 668         self.daemon.update_server_wishlist([small, big, big]).get(self.TIMEOUT)
 669
 670         self.assertEqual(0, self.node_shutdown.start.call_count)
 671
 672         for c in self.daemon.cloud_nodes.get().nodes.itervalues():
 673             self.daemon.node_can_shutdown(c.actor)
 674
 675         booting = self.daemon.booting.get()
 676         cloud_nodes = self.daemon.cloud_nodes.get()
 677
 678         self.stop_proxy(self.daemon)
 679
 680         self.assertEqual(1, self.node_setup.start.call_count)
 681         self.assertEqual(1, self.node_shutdown.start.call_count)
 682
 683         # booting a new big node
 684         sizecounts = {a[0].id: 0 for a in avail_sizes}
 685         for b in booting.itervalues():
 686             sizecounts[b.cloud_size.get().id] += 1
 687         self.assertEqual(0, sizecounts[small.id])
 688         self.assertEqual(1, sizecounts[big.id])
 689
 690         # shutting down a small node
 691         sizecounts = {a[0].id: 0 for a in avail_sizes}
 692         for b in cloud_nodes.nodes.itervalues():
 693             if b.shutdown_actor is not None:
 694                 sizecounts[b.cloud_node.size.id] += 1
 695         self.assertEqual(1, sizecounts[small.id])
 696         self.assertEqual(0, sizecounts[big.id])
 697
 698     def test_node_max_price(self):
 699         small = testutil.MockSize(1)
 700         big = testutil.MockSize(2)
 701         avail_sizes = [(testutil.MockSize(1), {"cores":1, "price":1}),
 702                         (testutil.MockSize(2), {"cores":2, "price":2})]
 703         self.make_daemon(want_sizes=[small, small, small, big],
 704                          avail_sizes=avail_sizes,
 705                          max_nodes=4,
 706                          max_total_price=4)
 707         # the daemon runs in another thread, so we need to wait and see
 708         # if it does all the work we're expecting it to do before stopping it.
 709         self.busywait(lambda: self.node_setup.start.call_count == 3)
 710         booting = self.daemon.booting.get()
 711         self.stop_proxy(self.daemon)
 712
 713         sizecounts = {a[0].id: 0 for a in avail_sizes}
 714         for b in booting.itervalues():
 715             sizecounts[b.cloud_size.get().id] += 1
 716         logging.info(sizecounts)
 717
 718         # Booting 3 small nodes and not booting a big node would also partially
 719         # satisfy the wishlist and come in under the price cap, however the way
 720         # the update_server_wishlist() currently works effectively results in a
 721         # round-robin creation of one node of each size in the wishlist, so
 722         # test for that.
 723         self.assertEqual(2, sizecounts[small.id])
 724         self.assertEqual(1, sizecounts[big.id])