X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e6cc23100178e5edc90f8e9d04e6c663944b5da9..080c940d7a8134a6e277a53b7e45eb27e2b2c87f:/services/nodemanager/tests/test_daemon.py diff --git a/services/nodemanager/tests/test_daemon.py b/services/nodemanager/tests/test_daemon.py index 6012cfc6b7..1b6e4ca8da 100644 --- a/services/nodemanager/tests/test_daemon.py +++ b/services/nodemanager/tests/test_daemon.py @@ -17,18 +17,32 @@ from arvnodeman.jobqueue import ServerCalculator from arvnodeman.computenode.dispatch import ComputeNodeMonitorActor from . import testutil from . import test_status +from . import pykka_timeout import logging class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, unittest.TestCase): + def assertwait(self, f, timeout=pykka_timeout*2): + deadline = time.time() + timeout + while True: + try: + return f() + except AssertionError: + if time.time() > deadline: + raise + pass + time.sleep(.1) + self.daemon.ping().get(self.TIMEOUT) + def busywait(self, f): - n = 0 - while not f() and n < 200: + for n in xrange(200): + ok = f() + if ok: + return time.sleep(.1) self.daemon.ping().get(self.TIMEOUT) - n += 1 - self.assertTrue(f()) + self.assertTrue(ok) # always falsy, but not necessarily False def mock_node_start(self, **kwargs): # Make sure that every time the daemon starts a setup actor, @@ -77,8 +91,9 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.arv_factory = mock.MagicMock(name='arvados_mock') api_client = mock.MagicMock(name='api_client') - api_client.nodes().create().execute.side_effect = [testutil.arvados_node_mock(1), - testutil.arvados_node_mock(2)] + api_client.nodes().create().execute.side_effect = \ + [testutil.arvados_node_mock(1), + testutil.arvados_node_mock(2)] self.arv_factory.return_value = api_client self.cloud_factory = mock.MagicMock(name='cloud_mock') @@ -141,10 +156,10 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, size = testutil.MockSize(1) self.make_daemon(want_sizes=[size]) self.busywait(lambda: self.node_setup.start.called) + self.assertIn('node_quota', status.tracker._latest) def check_monitors_arvados_nodes(self, *arv_nodes): - self.busywait(lambda: len(arv_nodes) == len(self.monitored_arvados_nodes())) - self.assertItemsEqual(arv_nodes, self.monitored_arvados_nodes()) + self.assertwait(lambda: self.assertItemsEqual(arv_nodes, self.monitored_arvados_nodes())) def test_node_pairing(self): cloud_node = testutil.cloud_node_mock(1) @@ -192,6 +207,39 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, want_sizes=[testutil.MockSize(1)]) self.busywait(lambda: not self.node_setup.start.called) + def test_select_stale_node_records_with_slot_numbers_first(self): + """ + Stale node records with slot_number assigned can exist when + clean_arvados_node() isn't executed after a node shutdown, for + various reasons. + NodeManagerDaemonActor should use these stale node records first, so + that they don't accumulate unused, reducing the slots available. + """ + size = testutil.MockSize(1) + a_long_time_ago = '1970-01-01T01:02:03.04050607Z' + arvados_nodes = [] + for n in range(9): + # Add several stale node records without slot_number assigned + arvados_nodes.append( + testutil.arvados_node_mock( + n+1, + slot_number=None, + modified_at=a_long_time_ago)) + # Add one record with stale_node assigned, it should be the + # first one selected + arv_node = testutil.arvados_node_mock( + 123, + modified_at=a_long_time_ago) + arvados_nodes.append(arv_node) + cloud_node = testutil.cloud_node_mock(125, size=size) + self.make_daemon(cloud_nodes=[cloud_node], + arvados_nodes=arvados_nodes) + arvados_nodes_tracker = self.daemon.arvados_nodes.get() + # Here, find_stale_node() should return the node record with + # the slot_number assigned. + self.assertEqual(arv_node, + arvados_nodes_tracker.find_stale_node(3601)) + def test_dont_count_missing_as_busy(self): size = testutil.MockSize(1) self.make_daemon(cloud_nodes=[testutil.cloud_node_mock(1, size=size), @@ -221,7 +269,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arvados_nodes=[testutil.arvados_node_mock(1), testutil.arvados_node_mock(2, last_ping_at='1970-01-01T01:02:03.04050607Z')], want_sizes=[size]) - self.busywait(lambda: 2 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(2, self.paired_monitor_count())) for mon_ref in self.monitor_list(): self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT) self.assertEqual(1, self.node_shutdown.start.call_count) @@ -233,7 +281,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arvados_nodes=[testutil.arvados_node_mock(1), testutil.arvados_node_mock(2, last_ping_at='1970-01-01T01:02:03.04050607Z')], want_sizes=[size]) - + self.assertwait(lambda: self.assertEqual(2, self.paired_monitor_count())) get_cloud_node = mock.MagicMock(name="get_cloud_node") get_cloud_node.get.return_value = cloud_nodes[1] mock_node_monitor = mock.MagicMock() @@ -242,7 +290,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.daemon.cloud_nodes.get()[cloud_nodes[1].id].shutdown_actor = mock_shutdown.proxy() - self.busywait(lambda: 2 == self.alive_monitor_count()) + self.assertwait(lambda: self.assertEqual(2, self.alive_monitor_count())) for mon_ref in self.monitor_list(): self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT) self.busywait(lambda: 1 == self.node_shutdown.start.call_count) @@ -262,8 +310,8 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arv_node = testutil.arvados_node_mock(2, job_uuid=True) self.make_daemon([testutil.cloud_node_mock(2, size=size)], [arv_node], [size], avail_sizes=[(size, {"cores":1})]) - self.busywait(lambda: 1 == self.paired_monitor_count()) - self.busywait(lambda: self.node_setup.start.called) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) + self.assertwait(lambda: self.assertEqual(1, self.node_setup.start.called)) def test_boot_new_node_below_min_nodes(self): min_size = testutil.MockSize(1) @@ -400,6 +448,27 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.assertTrue(self.node_setup.start.called, "second node not started after booted node stopped") + def test_node_disappearing_during_shutdown(self): + cloud_node = testutil.cloud_node_mock(6) + setup = self.start_node_boot(cloud_node, id_num=6) + self.daemon.node_setup_finished(setup).get(self.TIMEOUT) + self.assertEqual(1, self.alive_monitor_count()) + monitor = self.monitor_list()[0].proxy() + self.daemon.update_server_wishlist([]) + self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) + self.assertShutdownCancellable(True) + shutdown = self.node_shutdown.start().proxy() + shutdown.cloud_node.get.return_value = cloud_node + # Simulate a successful but slow node destroy call: the cloud node + # list gets updated before the ShutdownActor finishes. + record = self.daemon.cloud_nodes.get().nodes.values()[0] + self.assertTrue(record.shutdown_actor is not None) + self.daemon.cloud_nodes.get().nodes.clear() + self.daemon.node_finished_shutdown(shutdown).get(self.TIMEOUT) + self.assertTrue( + record.shutdown_actor is not None, + "test was ineffective -- failed to simulate the race condition") + def test_booted_node_shut_down_when_never_listed(self): setup = self.start_node_boot() self.cloud_factory().node_start_time.return_value = time.time() - 3601 @@ -486,7 +555,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arv_node = testutil.arvados_node_mock(1) size = testutil.MockSize(1) self.make_daemon(cloud_nodes=[cloud_node], arvados_nodes=[arv_node], want_sizes=[size]) - self.busywait(lambda: 1 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) monitor = self.monitor_list()[0].proxy() self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.stop_proxy(self.daemon) @@ -496,7 +565,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, cloud_node = testutil.cloud_node_mock(1) arv_node = testutil.arvados_node_mock(1) self.make_daemon(cloud_nodes=[cloud_node], arvados_nodes=[arv_node], min_nodes=1) - self.busywait(lambda: 1 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) monitor = self.monitor_list()[0].proxy() self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.stop_proxy(self.daemon) @@ -515,7 +584,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arv_nodes = [testutil.arvados_node_mock(3, job_uuid=True), testutil.arvados_node_mock(4, job_uuid=None)] self.make_daemon(cloud_nodes, arv_nodes, [size]) - self.busywait(lambda: 2 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(2, self.paired_monitor_count())) for mon_ref in self.monitor_list(): monitor = mon_ref.proxy() if monitor.cloud_node.get(self.TIMEOUT) is cloud_nodes[-1]: @@ -534,13 +603,13 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.last_shutdown.success.get.return_value = False self.daemon.node_finished_shutdown(self.last_shutdown).get(self.TIMEOUT) - self.busywait(lambda: 1 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.last_shutdown.success.get.return_value = True self.last_shutdown.stop.side_effect = lambda: monitor.stop() self.daemon.node_finished_shutdown(self.last_shutdown).get(self.TIMEOUT) - self.busywait(lambda: 0 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(0, self.paired_monitor_count())) def test_nodes_shutting_down_replaced_below_max_nodes(self): size = testutil.MockSize(6) @@ -551,15 +620,31 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, monitor = self.monitor_list()[0].proxy() self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.assertTrue(self.node_shutdown.start.called) + getmock = mock.MagicMock() + getmock.get.return_value = False + self.last_shutdown.cancel_shutdown.return_value = getmock self.daemon.update_server_wishlist( [testutil.MockSize(6)]).get(self.TIMEOUT) self.busywait(lambda: self.node_setup.start.called) + def test_nodes_shutting_down_cancelled(self): + size = testutil.MockSize(6) + cloud_node = testutil.cloud_node_mock(6, size=size) + self.make_daemon([cloud_node], [testutil.arvados_node_mock(6, crunch_worker_state='down')], + avail_sizes=[(size, {"cores":1})]) + self.assertEqual(1, self.alive_monitor_count()) + monitor = self.monitor_list()[0].proxy() + self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) + self.assertTrue(self.node_shutdown.start.called) + self.daemon.update_server_wishlist( + [testutil.MockSize(6)]).get(self.TIMEOUT) + self.busywait(lambda: self.last_shutdown.cancel_shutdown.called) + def test_nodes_shutting_down_not_replaced_at_max_nodes(self): cloud_node = testutil.cloud_node_mock(7) self.make_daemon([cloud_node], [testutil.arvados_node_mock(7)], max_nodes=1) - self.busywait(lambda: 1 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) monitor = self.monitor_list()[0].proxy() self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT) self.assertTrue(self.node_shutdown.start.called) @@ -573,7 +658,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, arv_nodes = [testutil.arvados_node_mock(n, size=size) for n in [8, 9]] self.make_daemon(cloud_nodes, arv_nodes, [size], avail_sizes=[(size, {"cores":1})]) - self.busywait(lambda: 2 == self.paired_monitor_count()) + self.assertwait(lambda: self.assertEqual(2, self.paired_monitor_count())) for mon_ref in self.monitor_list(): self.daemon.node_can_shutdown(mon_ref.proxy()).get(self.TIMEOUT) self.assertEqual(1, self.node_shutdown.start.call_count) @@ -608,6 +693,27 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.daemon.update_cloud_nodes([]).get(self.TIMEOUT) self.busywait(lambda: 1 == self.last_shutdown.stop.call_count) + def test_idle_node_disappearing_clears_status_idle_time_counter(self): + size = testutil.MockSize(1) + status.tracker._idle_nodes = {} + cloud_nodes = [testutil.cloud_node_mock(1, size=size)] + arv_nodes = [testutil.arvados_node_mock(1, job_uuid=None)] + self.make_daemon(cloud_nodes, arv_nodes, [size]) + self.assertwait(lambda: self.assertEqual(1, self.paired_monitor_count())) + for mon_ref in self.monitor_list(): + monitor = mon_ref.proxy() + if monitor.cloud_node.get(self.TIMEOUT) is cloud_nodes[-1]: + break + else: + self.fail("monitor for idle node not found") + self.assertEqual(1, status.tracker.get('nodes_idle')) + hostname = monitor.arvados_node.get()['hostname'] + self.assertIn(hostname, status.tracker._idle_nodes) + # Simulate the node disappearing from the cloud node list + self.daemon.update_cloud_nodes([]).get(self.TIMEOUT) + self.busywait(lambda: 0 == self.alive_monitor_count()) + self.assertNotIn(hostname, status.tracker._idle_nodes) + def test_shutdown_actor_cleanup_copes_with_dead_actors(self): self.make_daemon(cloud_nodes=[testutil.cloud_node_mock()]) self.assertEqual(1, self.alive_monitor_count()) @@ -644,7 +750,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, big = testutil.MockSize(2) avail_sizes = [(testutil.MockSize(1), {"cores":1}), (testutil.MockSize(2), {"cores":2})] - self.make_daemon(want_sizes=[small, small, small, big], + self.make_daemon(want_sizes=[small, small, big, small], avail_sizes=avail_sizes, max_nodes=3) # the daemon runs in another thread, so we need to wait and see @@ -658,6 +764,27 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, self.assertEqual(2, sizecounts[small.id]) self.assertEqual(1, sizecounts[big.id]) + def test_wishlist_ordering(self): + # Check that big nodes aren't prioritized; since #12199 containers are + # scheduled on specific node sizes. + small = testutil.MockSize(1) + big = testutil.MockSize(2) + avail_sizes = [(testutil.MockSize(1), {"cores":1}), + (testutil.MockSize(2), {"cores":2})] + self.make_daemon(want_sizes=[small, small, small, big], + avail_sizes=avail_sizes, max_nodes=3) + + # the daemon runs in another thread, so we need to wait and see + # if it does all the work we're expecting it to do before stopping it. + self.busywait(lambda: self.node_setup.start.call_count == 3) + booting = self.daemon.booting.get(self.TIMEOUT) + self.stop_proxy(self.daemon) + sizecounts = {a[0].id: 0 for a in avail_sizes} + for b in booting.itervalues(): + sizecounts[b.cloud_size.get().id] += 1 + self.assertEqual(3, sizecounts[small.id]) + self.assertEqual(0, sizecounts[big.id]) + def test_wishlist_reconfigure(self): small = testutil.MockSize(1) big = testutil.MockSize(2) @@ -671,7 +798,7 @@ class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin, testutil.arvados_node_mock(3)], want_sizes=[small, small, big], avail_sizes=avail_sizes) - + self.assertwait(lambda: self.assertEqual(3, self.paired_monitor_count())) self.daemon.update_server_wishlist([small, big, big]).get(self.TIMEOUT) self.assertEqual(0, self.node_shutdown.start.call_count)