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.computenode as nmcnode
  12 import arvnodeman.daemon as nmdaemon
  13 from . import testutil
  14
  15 class NodeManagerDaemonActorTestCase(testutil.ActorTestMixin,
  16                                      unittest.TestCase):
  17     def make_daemon(self, cloud_nodes=[], arvados_nodes=[], want_sizes=[],
  18                     max_nodes=8):
  19         for name in ['cloud_nodes', 'arvados_nodes', 'server_wishlist']:
  20             setattr(self, name + '_poller', mock.MagicMock(name=name + '_mock'))
  21         self.arv_factory = mock.MagicMock(name='arvados_mock')
  22         self.cloud_factory = mock.MagicMock(name='cloud_mock')
  23         self.cloud_factory().node_start_time.return_value = time.time()
  24         self.cloud_updates = mock.MagicMock(name='updates_mock')
  25         self.timer = testutil.MockTimer()
  26         self.node_setup = mock.MagicMock(name='setup_mock')
  27         self.node_shutdown = mock.MagicMock(name='shutdown_mock')
  28         self.daemon = nmdaemon.NodeManagerDaemonActor.start(
  29             self.server_wishlist_poller, self.arvados_nodes_poller,
  30             self.cloud_nodes_poller, self.cloud_updates, self.timer,
  31             self.arv_factory, self.cloud_factory,
  32             [54, 5, 1], max_nodes, 600, 3600,
  33             self.node_setup, self.node_shutdown).proxy()
  34         if cloud_nodes is not None:
  35             self.daemon.update_cloud_nodes(cloud_nodes).get(self.TIMEOUT)
  36         if arvados_nodes is not None:
  37             self.daemon.update_arvados_nodes(arvados_nodes).get(self.TIMEOUT)
  38         if want_sizes is not None:
  39             self.daemon.update_server_wishlist(want_sizes).get(self.TIMEOUT)
  40
  41     def monitor_list(self):
  42         return pykka.ActorRegistry.get_by_class(nmcnode.ComputeNodeMonitorActor)
  43
  44     def alive_monitor_count(self):
  45         return sum(1 for actor in self.monitor_list() if actor.is_alive())
  46
  47     def test_easy_node_creation(self):
  48         size = testutil.MockSize(1)
  49         self.make_daemon(want_sizes=[size])
  50         self.stop_proxy(self.daemon)
  51         self.assertTrue(self.node_setup.start.called)
  52
  53     def test_node_pairing(self):
  54         cloud_node = testutil.cloud_node_mock(1)
  55         arv_node = testutil.arvados_node_mock(1)
  56         self.make_daemon([cloud_node], [arv_node])
  57         self.stop_proxy(self.daemon)
  58         self.assertEqual(1, self.alive_monitor_count())
  59         self.assertIs(
  60             self.monitor_list()[0].proxy().arvados_node.get(self.TIMEOUT),
  61             arv_node)
  62
  63     def test_node_pairing_after_arvados_update(self):
  64         cloud_node = testutil.cloud_node_mock(2)
  65         self.make_daemon([cloud_node],
  66                          [testutil.arvados_node_mock(2, ip_address=None)])
  67         arv_node = testutil.arvados_node_mock(2)
  68         self.daemon.update_arvados_nodes([arv_node]).get(self.TIMEOUT)
  69         self.stop_proxy(self.daemon)
  70         self.assertEqual(1, self.alive_monitor_count())
  71         self.assertIs(
  72             self.monitor_list()[0].proxy().arvados_node.get(self.TIMEOUT),
  73             arv_node)
  74
  75     def test_old_arvados_node_not_double_assigned(self):
  76         arv_node = testutil.arvados_node_mock(3, age=9000)
  77         size = testutil.MockSize(3)
  78         self.make_daemon(arvados_nodes=[arv_node])
  79         setup_ref = self.node_setup.start().proxy().actor_ref
  80         setup_ref.actor_urn = 0
  81         self.node_setup.start.reset_mock()
  82         self.daemon.update_server_wishlist([size]).get(self.TIMEOUT)
  83         self.daemon.max_nodes.get(self.TIMEOUT)
  84         setup_ref.actor_urn += 1
  85         self.daemon.update_server_wishlist([size, size]).get(self.TIMEOUT)
  86         self.stop_proxy(self.daemon)
  87         used_nodes = [call[1].get('arvados_node')
  88                       for call in self.node_setup.start.call_args_list]
  89         self.assertEqual(2, len(used_nodes))
  90         self.assertIn(arv_node, used_nodes)
  91         self.assertIn(None, used_nodes)
  92
  93     def test_node_count_satisfied(self):
  94         self.make_daemon([testutil.cloud_node_mock()],
  95                          want_sizes=[testutil.MockSize(1)])
  96         self.stop_proxy(self.daemon)
  97         self.assertFalse(self.node_setup.called)
  98
  99     def test_booting_nodes_counted(self):
 100         cloud_node = testutil.cloud_node_mock(1)
 101         arv_node = testutil.arvados_node_mock(1)
 102         server_wishlist = [testutil.MockSize(1)] * 2
 103         self.make_daemon([cloud_node], [arv_node], server_wishlist)
 104         self.daemon.max_nodes.get(self.TIMEOUT)
 105         self.assertTrue(self.node_setup.start.called)
 106         self.daemon.update_server_wishlist(server_wishlist).get(self.TIMEOUT)
 107         self.stop_proxy(self.daemon)
 108         self.assertEqual(1, self.node_setup.start.call_count)
 109
 110     def test_boot_new_node_when_all_nodes_busy(self):
 111         arv_node = testutil.arvados_node_mock(2, job_uuid=True)
 112         self.make_daemon([testutil.cloud_node_mock(2)], [arv_node],
 113                          [testutil.MockSize(2)])
 114         self.stop_proxy(self.daemon)
 115         self.assertTrue(self.node_setup.start.called)
 116
 117     def test_no_new_node_when_max_nodes_busy(self):
 118         self.make_daemon([testutil.cloud_node_mock(3)],
 119                          [testutil.arvados_node_mock(3, job_uuid=True)],
 120                          [testutil.MockSize(3)],
 121                          max_nodes=1)
 122         self.stop_proxy(self.daemon)
 123         self.assertFalse(self.node_setup.start.called)
 124
 125     def mock_setup_actor(self, cloud_node, arv_node):
 126         setup = self.node_setup.start().proxy()
 127         self.node_setup.reset_mock()
 128         setup.actor_urn = cloud_node.id
 129         setup.cloud_node.get.return_value = cloud_node
 130         setup.arvados_node.get.return_value = arv_node
 131         return setup
 132
 133     def start_node_boot(self, cloud_node=None, arv_node=None, id_num=1):
 134         if cloud_node is None:
 135             cloud_node = testutil.cloud_node_mock(id_num)
 136         if arv_node is None:
 137             arv_node = testutil.arvados_node_mock(id_num)
 138         self.make_daemon(want_sizes=[testutil.MockSize(id_num)])
 139         self.daemon.max_nodes.get(self.TIMEOUT)
 140         self.assertEqual(1, self.node_setup.start.call_count)
 141         return self.mock_setup_actor(cloud_node, arv_node)
 142
 143     def test_no_duplication_when_booting_node_listed_fast(self):
 144         # Test that we don't start two ComputeNodeMonitorActors when
 145         # we learn about a booting node through a listing before we
 146         # get the "node up" message from CloudNodeSetupActor.
 147         cloud_node = testutil.cloud_node_mock(1)
 148         setup = self.start_node_boot(cloud_node)
 149         self.daemon.update_cloud_nodes([cloud_node])
 150         self.daemon.node_up(setup).get(self.TIMEOUT)
 151         self.assertEqual(1, self.alive_monitor_count())
 152
 153     def test_no_duplication_when_booted_node_listed(self):
 154         cloud_node = testutil.cloud_node_mock(2)
 155         setup = self.start_node_boot(cloud_node, id_num=2)
 156         self.daemon.node_up(setup)
 157         self.daemon.update_cloud_nodes([cloud_node]).get(self.TIMEOUT)
 158         self.assertEqual(1, self.alive_monitor_count())
 159
 160     def test_node_counted_after_boot_with_slow_listing(self):
 161         # Test that, after we boot a compute node, we assume it exists
 162         # even it doesn't appear in the listing (e.g., because of delays
 163         # propagating tags).
 164         setup = self.start_node_boot()
 165         self.daemon.node_up(setup).get(self.TIMEOUT)
 166         self.assertEqual(1, self.alive_monitor_count())
 167         self.daemon.update_cloud_nodes([]).get(self.TIMEOUT)
 168         self.assertEqual(1, self.alive_monitor_count())
 169
 170     def test_booted_unlisted_node_counted(self):
 171         setup = self.start_node_boot(id_num=1)
 172         self.daemon.node_up(setup)
 173         self.daemon.update_server_wishlist(
 174             [testutil.MockSize(1)]).get(self.TIMEOUT)
 175         self.stop_proxy(self.daemon)
 176         self.assertFalse(self.node_setup.start.called,
 177                          "daemon did not count booted node toward wishlist")
 178
 179     def test_booted_node_can_shutdown(self):
 180         setup = self.start_node_boot()
 181         self.daemon.node_up(setup).get(self.TIMEOUT)
 182         self.assertEqual(1, self.alive_monitor_count())
 183         monitor = self.monitor_list()[0].proxy()
 184         self.daemon.update_server_wishlist([])
 185         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 186         self.stop_proxy(self.daemon)
 187         self.assertTrue(self.node_shutdown.start.called,
 188                         "daemon did not shut down booted node on offer")
 189
 190     def test_booted_node_lifecycle(self):
 191         cloud_node = testutil.cloud_node_mock(6)
 192         setup = self.start_node_boot(cloud_node, id_num=6)
 193         self.daemon.node_up(setup).get(self.TIMEOUT)
 194         self.assertEqual(1, self.alive_monitor_count())
 195         monitor = self.monitor_list()[0].proxy()
 196         self.daemon.update_server_wishlist([])
 197         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 198         self.assertTrue(self.node_shutdown.start.called,
 199                         "daemon did not shut down booted node on offer")
 200         shutdown = self.node_shutdown.start().proxy()
 201         shutdown.cloud_node.get.return_value = cloud_node
 202         self.daemon.node_finished_shutdown(shutdown).get(self.TIMEOUT)
 203         self.assertTrue(shutdown.stop.called,
 204                         "shutdown actor not stopped after finishing")
 205         self.assertTrue(monitor.actor_ref.actor_stopped.wait(self.TIMEOUT),
 206                         "monitor for booted node not stopped after shutdown")
 207         self.daemon.update_server_wishlist(
 208             [testutil.MockSize(2)]).get(self.TIMEOUT)
 209         self.stop_proxy(self.daemon)
 210         self.assertTrue(self.node_setup.start.called,
 211                         "second node not started after booted node stopped")
 212
 213     def test_booting_nodes_shut_down(self):
 214         self.make_daemon(want_sizes=[testutil.MockSize(1)])
 215         self.daemon.update_server_wishlist([]).get(self.TIMEOUT)
 216         self.stop_proxy(self.daemon)
 217         self.assertTrue(
 218             self.node_setup.start().proxy().stop_if_no_cloud_node.called)
 219
 220     def test_shutdown_declined_at_wishlist_capacity(self):
 221         cloud_node = testutil.cloud_node_mock(1)
 222         size = testutil.MockSize(1)
 223         self.make_daemon(cloud_nodes=[cloud_node], want_sizes=[size])
 224         self.assertEqual(1, self.alive_monitor_count())
 225         monitor = self.monitor_list()[0].proxy()
 226         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 227         self.stop_proxy(self.daemon)
 228         self.assertFalse(self.node_shutdown.start.called)
 229
 230     def test_shutdown_accepted_below_capacity(self):
 231         self.make_daemon(cloud_nodes=[testutil.cloud_node_mock()])
 232         self.assertEqual(1, self.alive_monitor_count())
 233         monitor = self.monitor_list()[0].proxy()
 234         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 235         self.stop_proxy(self.daemon)
 236         self.assertTrue(self.node_shutdown.start.called)
 237
 238     def test_shutdown_declined_when_idle_and_job_queued(self):
 239         cloud_nodes = [testutil.cloud_node_mock(n) for n in [3, 4]]
 240         arv_nodes = [testutil.arvados_node_mock(3, job_uuid=True),
 241                      testutil.arvados_node_mock(4, job_uuid=None)]
 242         self.make_daemon(cloud_nodes, arv_nodes, [testutil.MockSize(1)])
 243         self.assertEqual(2, self.alive_monitor_count())
 244         for mon_ref in self.monitor_list():
 245             monitor = mon_ref.proxy()
 246             if monitor.cloud_node.get(self.TIMEOUT) is cloud_nodes[-1]:
 247                 break
 248         else:
 249             self.fail("monitor for idle node not found")
 250         self.daemon.node_can_shutdown(monitor).get(self.TIMEOUT)
 251         self.stop_proxy(self.daemon)
 252         self.assertFalse(self.node_shutdown.start.called)
 253
 254     def test_clean_shutdown_waits_for_node_setup_finish(self):
 255         new_node = self.start_node_boot()
 256         self.daemon.shutdown().get(self.TIMEOUT)
 257         self.assertTrue(new_node.stop_if_no_cloud_node.called)
 258         self.daemon.node_up(new_node).get(self.TIMEOUT)
 259         self.assertTrue(new_node.stop.called)
 260         self.assertTrue(
 261             self.daemon.actor_ref.actor_stopped.wait(self.TIMEOUT))
 262
 263     def test_wishlist_ignored_after_shutdown(self):
 264         size = testutil.MockSize(2)
 265         self.make_daemon(want_sizes=[size])
 266         self.daemon.shutdown().get(self.TIMEOUT)
 267         self.daemon.update_server_wishlist([size] * 2).get(self.TIMEOUT)
 268         self.stop_proxy(self.daemon)
 269         self.assertEqual(1, self.node_setup.start.call_count)