def test_get_instance_entity(self):
entity = shared.get_instance_entity()
# Save the modification, make sure it sticks.
entity.task_num = 42
entity.put()
entity2 = shared.get_instance_entity()
self.assertEqual(42, entity2.task_num)
# Make sure it does not pollute the default namespace.
self.assertIsNone(shared.Instance.get_by_id(entity.key.id()))
def test_get_instance_entity(self):
entity = shared.get_instance_entity()
# Save the modification, make sure it sticks.
entity.task_num = 42
entity.put()
entity2 = shared.get_instance_entity()
self.assertEqual(42, entity2.task_num)
# Make sure it does not pollute the default namespace.
self.assertIsNone(shared.Instance.get_by_id(entity.key.id()))
def _flush_metrics(time_now):
"""Return True if metrics were actually sent."""
if interface.state.target is None:
# ts_mon is not configured.
return False
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
entity = shared.get_instance_entity()
if entity.task_num < 0:
if interface.state.target.task_num >= 0:
_reset_cumulative_metrics()
interface.state.target.task_num = -1
interface.state.last_flushed = entity.last_updated
updated_sec_ago = (datetime_now - entity.last_updated).total_seconds()
if updated_sec_ago > shared.INSTANCE_EXPECTED_TO_HAVE_TASK_NUM_SEC:
logging.warning('Instance %s is %d seconds old with no task_num.',
shared.instance_key_id(), updated_sec_ago)
return False
interface.state.target.task_num = entity.task_num
entity.last_updated = datetime_now
entity_deferred = entity.put_async()
interface.flush()
for metric in interface.state.global_metrics.itervalues():
metric.reset()
entity_deferred.get_result()
return True
def _flush_metrics(time_now):
"""Return True if metrics were actually sent."""
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
entity = shared.get_instance_entity()
if entity.task_num < 0:
if interface.state.target.task_num >= 0:
_reset_cumulative_metrics()
interface.state.target.task_num = -1
interface.state.last_flushed = entity.last_updated
updated_sec_ago = (datetime_now - entity.last_updated).total_seconds()
if updated_sec_ago > shared.INSTANCE_EXPECTED_TO_HAVE_TASK_NUM_SEC:
logging.warning('Instance %s is %d seconds old with no task_num.',
shared.instance_key_id(), updated_sec_ago)
return False
interface.state.target.task_num = entity.task_num
entity.last_updated = datetime_now
entity_deferred = entity.put_async()
interface.flush()
for metric in shared.global_metrics.itervalues():
metric.reset()
entity_deferred.get_result()
return True
def test_shutdown_hook_not_flushed(self, _mock_flush):
time_now = 10000
id = shared.get_instance_entity().key.id()
with shared.instance_namespace_context():
self.assertIsNotNone(shared.Instance.get_by_id(id))
config._shutdown_hook(time_fn=lambda: time_now)
with shared.instance_namespace_context():
self.assertIsNone(shared.Instance.get_by_id(id))
def test_shutdown_hook_not_flushed(self, _mock_flush):
time_now = 10000
id = shared.get_instance_entity().key.id()
with shared.instance_namespace_context():
self.assertIsNotNone(shared.Instance.get_by_id(id))
config._shutdown_hook(time_fn=lambda: time_now)
with shared.instance_namespace_context():
self.assertIsNone(shared.Instance.get_by_id(id))
def test_flush_metrics_too_early(self):
# Too early to send metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
less_than_min_ago = datetime_now - datetime.timedelta(seconds=59)
interface.state.last_flushed = less_than_min_ago
entity = shared.get_instance_entity()
entity.task_num = 2
self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_too_early(self): # Too early to send metrics. time_now = 10000 datetime_now = datetime.datetime.utcfromtimestamp(time_now) less_than_min_ago = datetime_now - datetime.timedelta(seconds=59) interface.state.last_flushed = less_than_min_ago entity = shared.get_instance_entity() entity.task_num = 2 self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_purged(self):
# We lost our task_num; cannot send metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
more_than_min_ago = datetime_now - datetime.timedelta(seconds=61)
interface.state.last_flushed = more_than_min_ago
entity = shared.get_instance_entity()
entity.task_num = -1
interface.state.target.task_num = 2
self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_purged(self): # We lost our task_num; cannot send metrics. time_now = 10000 datetime_now = datetime.datetime.utcfromtimestamp(time_now) more_than_min_ago = datetime_now - datetime.timedelta(seconds=61) interface.state.last_flushed = more_than_min_ago entity = shared.get_instance_entity() entity.task_num = -1 interface.state.target.task_num = 2 self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_disabled(self, mock_flush):
# We have task_num and due for sending metrics, but ts_mon is disabled.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
more_than_min_ago = datetime_now - datetime.timedelta(seconds=61)
interface.state.last_flushed = more_than_min_ago
interface.state.flush_enabled_fn = lambda: False
entity = shared.get_instance_entity()
entity.task_num = 2
self.assertFalse(config.flush_metrics_if_needed(time_now))
self.assertEqual(0, mock_flush.call_count)
def test_flush_metrics_disabled(self, mock_flush): # We have task_num and due for sending metrics, but ts_mon is disabled. time_now = 10000 datetime_now = datetime.datetime.utcfromtimestamp(time_now) more_than_min_ago = datetime_now - datetime.timedelta(seconds=61) interface.state.last_flushed = more_than_min_ago interface.state.flush_enabled_fn = lambda: False entity = shared.get_instance_entity() entity.task_num = 2 self.assertFalse(config.flush_metrics_if_needed(time_now)) self.assertEqual(0, mock_flush.call_count)
def test_flush_metrics_no_task_num_too_long(self):
# We are not assigned task_num for too long; cannot send metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
too_long_ago = datetime_now - datetime.timedelta(
seconds=shared.INSTANCE_EXPECTED_TO_HAVE_TASK_NUM_SEC + 1)
interface.state.last_flushed = too_long_ago
entity = shared.get_instance_entity()
entity.task_num = -1
entity.last_updated = too_long_ago
interface.state.target.task_num = -1
self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_no_task_num_too_long(self):
# We are not assigned task_num for too long; cannot send metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
too_long_ago = datetime_now - datetime.timedelta(
seconds=shared.INSTANCE_EXPECTED_TO_HAVE_TASK_NUM_SEC+1)
interface.state.last_flushed = too_long_ago
entity = shared.get_instance_entity()
entity.task_num = -1
entity.last_updated = too_long_ago
interface.state.target.task_num = -1
self.assertFalse(config.flush_metrics_if_needed(time_now))
def test_flush_metrics_successfully(self, mock_flush):
# We have task_num and due for sending metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
more_than_min_ago = datetime_now - datetime.timedelta(seconds=61)
interface.state.last_flushed = more_than_min_ago
entity = shared.get_instance_entity()
entity.task_num = 2
# Global metrics must be erased after flush.
test_global_metric = gae_ts_mon.GaugeMetric('test', 'foo', None)
test_global_metric.set(42)
interface.register_global_metrics([test_global_metric])
self.assertEqual(42, test_global_metric.get())
self.assertTrue(config.flush_metrics_if_needed(time_now))
self.assertEqual(None, test_global_metric.get())
mock_flush.assert_called_once_with()
def test_flush_metrics_successfully(self, mock_flush):
# We have task_num and due for sending metrics.
time_now = 10000
datetime_now = datetime.datetime.utcfromtimestamp(time_now)
more_than_min_ago = datetime_now - datetime.timedelta(seconds=61)
interface.state.last_flushed = more_than_min_ago
entity = shared.get_instance_entity()
entity.task_num = 2
# Global metrics must be erased after flush.
test_global_metric = gae_ts_mon.GaugeMetric('test')
test_global_metric.set(42)
shared.register_global_metrics([test_global_metric])
self.assertEqual(42, test_global_metric.get())
self.assertTrue(config.flush_metrics_if_needed(time_now))
self.assertEqual(None, test_global_metric.get())
mock_flush.assert_called_once_with()
