def test_perform_maintenance_hosts(self):
mock_options = self.make_mock_options()
mock_options.post_drain_script = None
mock_options.groups_per_batch = '1'
mock_options.grouping = 'by_host'
def host_status_results(hostnames):
if isinstance(hostnames, Hosts):
return self.create_drained_status_result(hostnames)
return self.create_maintenance_status_result()
mock_api, mock_scheduler_proxy = self.create_mock_api()
mock_scheduler_proxy.endMaintenance.return_value = self.create_end_maintenance_result()
mock_scheduler_proxy.maintenanceStatus.side_effect = host_status_results
mock_scheduler_proxy.startMaintenance.return_value = self.create_start_maintenance_result()
mock_scheduler_proxy.drainHosts.return_value = self.create_start_maintenance_result()
with contextlib.nested(
patch('time.sleep'),
patch('apache.aurora.client.api.SchedulerProxy', return_value=mock_scheduler_proxy),
patch('apache.aurora.client.commands.maintenance.CLUSTERS', new=self.TEST_CLUSTERS),
patch('twitter.common.app.get_options', return_value=mock_options)) as (
mock_sleep,
mock_scheduler_proxy_class,
mock_clusters_maintenancepatch,
options):
perform_maintenance_hosts([self.TEST_CLUSTER])
mock_scheduler_proxy.startMaintenance.assert_called_with(Hosts(set(self.HOSTNAMES)))
#TODO(jsmith): Consider not mocking out sleep and instead refactoring
assert mock_sleep.call_count == 3
assert mock_scheduler_proxy.maintenanceStatus.call_count == 7
assert mock_scheduler_proxy.drainHosts.call_count == 3
assert mock_scheduler_proxy.endMaintenance.call_count == 4
def test_perform_maintenance_hosts_failed_default_sla(self):
with temporary_file() as fp:
mock_options = self.make_mock_options()
mock_options.post_drain_script = None
mock_options.grouping = 'by_host'
mock_options.unsafe_hosts_filename = fp.name
def host_status_results(hostnames):
if isinstance(hostnames, Hosts):
return self.create_drained_status_result(hostnames)
return self.create_maintenance_status_result()
mock_api, mock_scheduler_proxy = self.create_mock_api()
mock_scheduler_proxy.endMaintenance.return_value = self.create_end_maintenance_result()
mock_scheduler_proxy.maintenanceStatus.side_effect = host_status_results
mock_scheduler_proxy.startMaintenance.return_value = self.create_start_maintenance_result()
mock_scheduler_proxy.drainHosts.return_value = self.create_start_maintenance_result()
mock_vector = self.create_mock_probe_hosts_vector([
self.create_probe_hosts(self.HOSTNAMES[0], 95, False, None),
self.create_probe_hosts(self.HOSTNAMES[1], 95, False, None),
self.create_probe_hosts(self.HOSTNAMES[2], 95, False, None)
])
with contextlib.nested(
patch('time.sleep'),
patch('apache.aurora.client.api.SchedulerProxy', return_value=mock_scheduler_proxy),
patch('apache.aurora.client.api.sla.Sla.get_domain_uptime_vector',
return_value=mock_vector),
patch('apache.aurora.client.commands.maintenance.CLUSTERS', new=self.TEST_CLUSTERS),
patch('twitter.common.app.get_options', return_value=mock_options)):
perform_maintenance_hosts([self.TEST_CLUSTER])
mock_scheduler_proxy.startMaintenance.assert_called_with(Hosts(set(self.HOSTNAMES)))
assert mock_scheduler_proxy.endMaintenance.call_count == len(self.HOSTNAMES)
def test_perform_maintenance_hosts_reason_missing(self):
mock_options = self.make_mock_options()
mock_options.grouping = "by_host"
mock_options.percentage = 50
mock_options.duration = "10m"
with contextlib.nested(patch("twitter.common.app.get_options", return_value=mock_options)):
try:
perform_maintenance_hosts([self.TEST_CLUSTER])
except SystemExit:
pass
else:
assert "Expected error is not raised."
def test_perform_maintenance_hosts_failed_custom_sla(self):
with temporary_file() as fp:
mock_options = self.make_mock_options()
mock_options.post_drain_script = None
mock_options.grouping = "by_host"
mock_options.percentage = 50
mock_options.duration = "10m"
mock_options.reason = "Test overrides"
mock_options.unsafe_hosts_filename = fp.name
def host_status_results(hostnames):
if isinstance(hostnames, Hosts):
return self.create_drained_status_result(hostnames)
return self.create_maintenance_status_result()
mock_api, mock_scheduler_proxy = self.create_mock_api()
mock_scheduler_proxy.endMaintenance.return_value = self.create_end_maintenance_result()
mock_scheduler_proxy.maintenanceStatus.side_effect = host_status_results
mock_scheduler_proxy.startMaintenance.return_value = self.create_start_maintenance_result()
mock_scheduler_proxy.drainHosts.return_value = self.create_start_maintenance_result()
mock_vector = self.create_mock_probe_hosts_vector(
[
self.create_probe_hosts(self.HOSTNAMES[0], 95, False, None),
self.create_probe_hosts(self.HOSTNAMES[1], 95, False, None),
self.create_probe_hosts(self.HOSTNAMES[2], 95, False, None),
]
)
with contextlib.nested(
patch("time.sleep"),
patch("apache.aurora.client.api.SchedulerProxy", return_value=mock_scheduler_proxy),
patch("apache.aurora.client.api.sla.Sla.get_domain_uptime_vector", return_value=mock_vector),
patch("apache.aurora.client.commands.maintenance.CLUSTERS", new=self.TEST_CLUSTERS),
patch("apache.aurora.client.commands.maintenance.log_admin_message"),
patch("twitter.common.app.get_options", return_value=mock_options),
) as (_, _, _, _, log, _):
perform_maintenance_hosts([self.TEST_CLUSTER])
assert "Test overrides" in log.call_args[0][1]
mock_scheduler_proxy.startMaintenance.assert_called_with(Hosts(set(self.HOSTNAMES)))
assert mock_scheduler_proxy.endMaintenance.call_count == len(self.HOSTNAMES)
def test_perform_maintenance_hosts_multiple_sla_groups_failure(self):
mock_options = self.make_mock_options()
mock_options.post_drain_script = None
mock_options.grouping = "by_host"
mock_options.unsafe_hosts_filename = None
def host_status_results(hostnames):
if isinstance(hostnames, Hosts):
return self.create_drained_status_result(hostnames)
return self.create_maintenance_status_result()
mock_api, mock_scheduler_proxy = self.create_mock_api()
mock_scheduler_proxy.endMaintenance.return_value = self.create_end_maintenance_result()
mock_scheduler_proxy.maintenanceStatus.side_effect = host_status_results
mock_scheduler_proxy.startMaintenance.return_value = self.create_start_maintenance_result()
mock_scheduler_proxy.drainHosts.return_value = self.create_start_maintenance_result()
def create_multiple_sla_results():
mock_vector = Mock()
mock_vector.probe_hosts.return_value = self.HOSTNAMES
return mock_vector
with contextlib.nested(
patch("time.sleep"),
patch("apache.aurora.client.api.SchedulerProxy", return_value=mock_scheduler_proxy),
patch(
"apache.aurora.client.api.sla.Sla.get_domain_uptime_vector", return_value=create_multiple_sla_results()
),
patch("apache.aurora.client.commands.maintenance.CLUSTERS", new=self.TEST_CLUSTERS),
patch("twitter.common.app.get_options", return_value=mock_options),
) as (mock_sleep, mock_scheduler_proxy_class, mock_vector_class, mock_clusters_maintenancepatch, options):
perform_maintenance_hosts([self.TEST_CLUSTER])
mock_scheduler_proxy.startMaintenance.assert_called_with(Hosts(set(self.HOSTNAMES)))
assert mock_sleep.call_count == 0
assert mock_scheduler_proxy.maintenanceStatus.call_count == 3
assert mock_scheduler_proxy.drainHosts.call_count == 0
assert mock_scheduler_proxy.endMaintenance.call_count == 3
def test_perform_maintenance_hosts_unknown_hosts_skipped(self):
mock_options = self.make_mock_options()
mock_options.post_drain_script = None
mock_options.grouping = "by_host"
def host_status_results(hostnames):
if isinstance(hostnames, Hosts):
return self.create_drained_status_result(hostnames)
return self.create_maintenance_status_result()
mock_api, mock_scheduler_proxy = self.create_mock_api()
mock_scheduler_proxy.endMaintenance.return_value = self.create_end_maintenance_result()
mock_scheduler_proxy.maintenanceStatus.side_effect = host_status_results
mock_scheduler_proxy.startMaintenance.return_value = self.create_start_maintenance_result(
skip_hosts=["us-grf-20"]
)
mock_scheduler_proxy.drainHosts.return_value = self.create_start_maintenance_result()
mock_vector = self.create_mock_probe_hosts_vector(
[
self.create_probe_hosts(self.HOSTNAMES[0], 95, True, None),
self.create_probe_hosts(self.HOSTNAMES[1], 95, True, None),
self.create_probe_hosts(self.HOSTNAMES[2], 95, True, None),
]
)
with contextlib.nested(
patch("time.sleep"),
patch("apache.aurora.client.api.SchedulerProxy", return_value=mock_scheduler_proxy),
patch("apache.aurora.client.api.sla.Sla.get_domain_uptime_vector", return_value=mock_vector),
patch("apache.aurora.client.commands.maintenance.CLUSTERS", new=self.TEST_CLUSTERS),
patch("twitter.common.app.get_options", return_value=mock_options),
) as (mock_sleep, mock_scheduler_proxy_class, mock_vector_class, mock_clusters_maintenancepatch, options):
perform_maintenance_hosts([self.TEST_CLUSTER])
mock_scheduler_proxy.startMaintenance.assert_called_with(Hosts(set(self.HOSTNAMES)))
assert mock_sleep.call_count == 2
assert mock_scheduler_proxy.maintenanceStatus.call_count == 4
assert mock_scheduler_proxy.drainHosts.call_count == 2
assert mock_scheduler_proxy.endMaintenance.call_count == 2
