def __init__(self, instance):
from dagster.daemon.controller import get_daemon_status
self._daemon_statuses = {
DauphinDaemonType.SCHEDULER.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.SCHEDULER),
DauphinDaemonType.SENSOR.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.SENSOR),
DauphinDaemonType.QUEUED_RUN_COORDINATOR.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.QUEUED_RUN_COORDINATOR),
}
def __init__(self, instance):
super().__init__()
self._daemon_statuses = {
DaemonType.SCHEDULER.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.SCHEDULER),
DaemonType.SENSOR.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.SENSOR),
DaemonType.QUEUED_RUN_COORDINATOR.value:
get_daemon_status( # pylint: disable=no-member
instance, DaemonType.QUEUED_RUN_COORDINATOR),
}
def resolve_allDaemonStatuses(self, _graphene_info):
return [
GrapheneDaemonStatus(
get_daemon_status(self._instance,
daemon_type,
ignore_errors=True))
for daemon_type in self._instance.get_required_daemon_types()
]
def test_multiple_error_daemon(monkeypatch):
with instance_for_test() as instance:
from dagster.daemon.daemon import SensorDaemon
def run_loop_error(_, _instance, _workspace):
# ?message stack cls_name cause"
yield SerializableErrorInfo("foobar", None, None, None)
yield SerializableErrorInfo("bizbuz", None, None, None)
while True:
yield
time.sleep(0.5)
monkeypatch.setattr(SensorDaemon, "core_loop", run_loop_error)
init_time = pendulum.now("UTC")
heartbeat_interval_seconds = 1
with daemon_controller_from_instance(
instance, heartbeat_interval_seconds=heartbeat_interval_seconds
) as controller:
while True:
now = pendulum.now("UTC")
if all_daemons_live(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds):
# Despite error, daemon should still be running
controller.check_daemon_threads()
controller.check_daemon_heartbeats()
status = get_daemon_status(instance,
SensorDaemon.daemon_type(),
now.float_timestamp)
if status.healthy == False and len(
status.last_heartbeat.errors) == 2:
assert status.last_heartbeat.errors[0].message.strip(
) == "bizbuz"
assert status.last_heartbeat.errors[1].message.strip(
) == "foobar"
break
if (now - init_time).total_seconds() > 10:
raise Exception("timed out waiting for heartbeat error")
time.sleep(0.5)
def test_error_daemon(monkeypatch):
with instance_for_test(overrides={}) as instance:
from dagster.daemon.daemon import SensorDaemon
def run_iteration_error(_):
raise DagsterInvariantViolationError("foobar")
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
controller = DagsterDaemonController(instance)
init_time = pendulum.now("UTC")
controller.run_iteration(init_time)
status = get_daemon_status(instance, SensorDaemon.daemon_type(),
init_time.float_timestamp)
assert status.healthy == False
assert (status.last_heartbeat.error.message.strip() ==
"dagster.core.errors.DagsterInvariantViolationError: foobar")
def test_thread_die_daemon(monkeypatch):
with instance_for_test(overrides={}) as instance:
from dagster.daemon.daemon import SchedulerDaemon, SensorDaemon
iteration_ran = {"ran": False}
def run_loop_error(_, _instance, _workspace):
iteration_ran["ran"] = True
raise KeyboardInterrupt
yield # pylint: disable=unreachable
monkeypatch.setattr(SensorDaemon, "core_loop", run_loop_error)
heartbeat_interval_seconds = 1
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance,
workspace_load_target=EmptyWorkspaceTarget(),
heartbeat_interval_seconds=heartbeat_interval_seconds,
) as controller:
while True:
now = pendulum.now("UTC")
status = get_daemon_status(
instance,
SchedulerDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
if iteration_ran["ran"] and status.healthy:
try:
controller.check_daemon_threads() # Should eventually throw since the sensor thread is interrupted
except Exception as e:
assert (
"Stopping dagster-daemon process since the following threads are no longer running: ['SENSOR']"
in str(e)
)
break
if (now - init_time).total_seconds() > 20:
raise Exception("timed out waiting for check_daemons to fail")
time.sleep(0.5)
def test_multiple_error_daemon(monkeypatch):
with instance_for_test(overrides={}) as instance:
from dagster.daemon.daemon import SensorDaemon
def run_iteration_error(_):
# ?message stack cls_name cause"
yield SerializableErrorInfo("foobar", None, None, None)
yield SerializableErrorInfo("bizbuz", None, None, None)
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
controller = DagsterDaemonController(instance)
init_time = pendulum.now("UTC")
controller.run_iteration(init_time)
status = get_daemon_status(instance, SensorDaemon.daemon_type(),
init_time.float_timestamp)
assert status.healthy == False
assert len(status.last_heartbeat.errors) == 2
assert status.last_heartbeat.errors[0].message.strip() == "foobar"
assert status.last_heartbeat.errors[1].message.strip() == "bizbuz"
def test_error_daemon(monkeypatch):
with instance_for_test() as instance:
from dagster.daemon.daemon import SensorDaemon
def run_iteration_error(_, _instance, _daemon_shutdown_event,
_grpc_server_registry):
raise DagsterInvariantViolationError("foobar")
yield # pylint: disable=unreachable
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance, wait_for_processes_on_exit=True) as controller:
while True:
now = pendulum.now("UTC")
if all_daemons_live(instance):
# Despite error, daemon should still be running
controller.check_daemons()
status = get_daemon_status(instance,
SensorDaemon.daemon_type(),
now.float_timestamp)
assert status.healthy == False
assert len(status.last_heartbeat.errors) == 1
assert (
status.last_heartbeat.errors[0].message.strip() ==
"dagster.core.errors.DagsterInvariantViolationError: foobar"
)
assert not all_daemons_healthy(
instance, curr_time_seconds=now.float_timestamp)
assert all_daemons_live(
instance, curr_time_seconds=now.float_timestamp)
break
if (now - init_time).total_seconds() > 10:
raise Exception("timed out waiting for heartbeat error")
time.sleep(0.5)
def test_multiple_error_daemon(monkeypatch):
with instance_for_test() as instance:
from dagster.daemon.daemon import SensorDaemon
def run_iteration_error(_, _instance, _daemon_shutdown_event_,
_grpc_server_registry):
# ?message stack cls_name cause"
yield SerializableErrorInfo("foobar", None, None, None)
yield SerializableErrorInfo("bizbuz", None, None, None)
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance, wait_for_processes_on_exit=True) as controller:
while True:
now = pendulum.now("UTC")
if all_daemons_live(instance):
# Despite error, daemon should still be running
controller.check_daemons()
status = get_daemon_status(instance,
SensorDaemon.daemon_type(),
now.float_timestamp)
if status.healthy == False:
assert len(status.last_heartbeat.errors) == 2
assert status.last_heartbeat.errors[0].message.strip(
) == "foobar"
assert status.last_heartbeat.errors[1].message.strip(
) == "bizbuz"
break
if (now - init_time).total_seconds() > 10:
raise Exception("timed out waiting for heartbeat error")
time.sleep(0.5)
def test_thread_die_daemon(monkeypatch):
with instance_for_test(overrides={}) as instance:
from dagster.daemon.daemon import SchedulerDaemon, SensorDaemon
iteration_ran = {"ran": False}
def run_iteration_error(_, _instance, _daemon_shutdown_event,
_grpc_server_registry):
iteration_ran["ran"] = True
raise KeyboardInterrupt
yield # pylint: disable=unreachable
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance, wait_for_processes_on_exit=True) as controller:
while True:
now = pendulum.now("UTC")
status = get_daemon_status(instance,
SchedulerDaemon.daemon_type(),
now.float_timestamp)
if iteration_ran["ran"] and status.healthy:
try:
controller.check_daemons(
) # Should eventually throw since the sensor thread is interrupted
except Exception as e: # pylint: disable=broad-except
assert (
"Stopping dagster-daemon process since the following threads are no longer sending heartbeats: ['SENSOR']"
in str(e))
break
if (now - init_time).total_seconds() > 20:
raise Exception(
"timed out waiting for check_daemons to fail")
time.sleep(0.5)
def test_error_daemon(monkeypatch):
with instance_for_test(overrides={}) as instance:
from dagster.daemon.daemon import SensorDaemon
def run_iteration_error(_):
raise DagsterInvariantViolationError("foobar")
yield # pylint: disable=unreachable
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
controller = DagsterDaemonController(instance)
init_time = pendulum.now("UTC")
controller.run_iteration(init_time)
status = get_daemon_status(instance, SensorDaemon.daemon_type(),
init_time.float_timestamp)
assert status.healthy == False
assert len(status.last_heartbeat.errors) == 1
assert (status.last_heartbeat.errors[0].message.strip() ==
"dagster.core.errors.DagsterInvariantViolationError: foobar")
assert not all_daemons_healthy(
instance, curr_time_seconds=init_time.float_timestamp)
assert all_daemons_live(instance,
curr_time_seconds=init_time.float_timestamp)
def debug_heartbeat_dump_command():
with DagsterInstance.get() as instance:
for daemon_type in instance.get_required_daemon_types():
click.echo(get_daemon_status(instance, daemon_type))
def test_warn_multiple_daemons(capsys):
from dagster.daemon.daemon import SensorDaemon
with instance_for_test() as instance:
init_time = pendulum.now("UTC")
heartbeat_interval_seconds = 1
with daemon_controller_from_instance(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds):
while True:
now = pendulum.now("UTC")
if all_daemons_live(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds):
captured = capsys.readouterr()
assert "Taking over from another SENSOR daemon process" not in captured.out
break
if (now - init_time).total_seconds() > 10:
raise Exception("timed out waiting for daemon status")
time.sleep(0.5)
capsys.readouterr()
init_time = pendulum.now("UTC")
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
last_heartbeat_time = status.last_heartbeat.timestamp
# No warning when a second controller starts up again
with daemon_controller_from_instance(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds):
while True:
now = pendulum.now("UTC")
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
if status.last_heartbeat and status.last_heartbeat.timestamp != last_heartbeat_time:
captured = capsys.readouterr()
assert "Taking over from another SENSOR daemon process" not in captured.out
break
if (now - init_time).total_seconds() > 10:
raise Exception("timed out waiting for new daemon status")
time.sleep(0.5)
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
last_heartbeat_time = status.last_heartbeat.timestamp
# Starting up a controller while one is running produces the warning though
with daemon_controller_from_instance(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds):
# Wait for heartbeats while two controllers are running at once and there will
# be a warning
init_time = pendulum.now("UTC")
while True:
now = pendulum.now("UTC")
captured = capsys.readouterr()
if "Taking over from another SENSOR daemon process" in captured.out:
break
if (now - init_time).total_seconds() > 60:
raise Exception("timed out waiting for heartbeats")
time.sleep(5)
def test_error_daemon(monkeypatch):
with instance_for_test() as instance:
from dagster.daemon.daemon import SensorDaemon
should_raise_errors = True
def run_iteration_error(_, _instance, _workspace):
if should_raise_errors:
raise DagsterInvariantViolationError("foobar")
yield
monkeypatch.setattr(SensorDaemon, "run_iteration", run_iteration_error)
heartbeat_interval_seconds = 1
gen_daemons = lambda instance: [SensorDaemon(interval_seconds=1)]
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance,
heartbeat_interval_seconds=heartbeat_interval_seconds,
gen_daemons=gen_daemons,
error_interval_seconds=10,
) as controller:
while True:
now = pendulum.now("UTC")
if get_daemon_status(
instance,
SensorDaemon.daemon_type(),
heartbeat_interval_seconds=heartbeat_interval_seconds,
ignore_errors=True,
).healthy:
# Despite error, daemon should still be running
controller.check_daemon_threads()
controller.check_daemon_heartbeats()
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
assert status.healthy == False
# Errors build up until they hit 5
if len(status.last_heartbeat.errors) == 5:
assert (
status.last_heartbeat.errors[0].message.strip() ==
"dagster.core.errors.DagsterInvariantViolationError: foobar"
)
assert not get_daemon_status(
instance,
SensorDaemon.daemon_type(),
curr_time_seconds=now.float_timestamp,
heartbeat_interval_seconds=
heartbeat_interval_seconds,
).healthy
assert get_daemon_status(
instance,
SensorDaemon.daemon_type(),
curr_time_seconds=now.float_timestamp,
heartbeat_interval_seconds=
heartbeat_interval_seconds,
ignore_errors=True,
).healthy
time.sleep(3)
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=
heartbeat_interval_seconds,
)
# Error count does not rise above 5
assert len(status.last_heartbeat.errors) == 5
break
if (now - init_time).total_seconds() > 15:
raise Exception("timed out waiting for heartbeat error")
time.sleep(0.5)
# Once the sensor no longer raises errors, they should return to 0 once
# enough time passes
should_raise_errors = False
init_time = pendulum.now("UTC")
while True:
now = pendulum.now("UTC")
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
# Error count does not rise above 5
if len(status.last_heartbeat.errors) == 0:
break
if (now - init_time).total_seconds() > 15:
raise Exception(
"timed out waiting for hearrteat errors to return to 0"
)
time.sleep(0.5)
def resolve_daemonStatus(self, _graphene_info, daemon_type):
check.str_param(daemon_type, "daemon_type")
return GrapheneDaemonStatus(
get_daemon_status(self._instance, daemon_type))
def test_error_daemon(monkeypatch):
with instance_for_test() as instance:
from dagster.daemon.daemon import SensorDaemon
should_raise_errors = True
error_count = {"count": 0}
def run_loop_error(_, _instance, _workspace):
if should_raise_errors:
time.sleep(0.5)
error_count["count"] = error_count["count"] + 1
raise DagsterInvariantViolationError("foobar:" + str(error_count["count"]))
while True:
yield
time.sleep(0.5)
def _get_error_number(error):
error_message = error.message.strip()
return int(error_message.split("foobar:")[1])
monkeypatch.setattr(SensorDaemon, "core_loop", run_loop_error)
heartbeat_interval_seconds = 1
gen_daemons = lambda instance: [SensorDaemon()]
init_time = pendulum.now("UTC")
with daemon_controller_from_instance(
instance,
workspace_load_target=EmptyWorkspaceTarget(),
heartbeat_interval_seconds=heartbeat_interval_seconds,
gen_daemons=gen_daemons,
error_interval_seconds=10,
) as controller:
while True:
now = pendulum.now("UTC")
if get_daemon_status(
instance,
SensorDaemon.daemon_type(),
heartbeat_interval_seconds=heartbeat_interval_seconds,
ignore_errors=True,
).healthy:
# Despite error, daemon should still be running
controller.check_daemon_threads()
controller.check_daemon_heartbeats()
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
assert status.healthy == False
# Errors build up until there are > 5, then pull off the last
if len(status.last_heartbeat.errors) >= 5:
first_error_number = _get_error_number(status.last_heartbeat.errors[0])
if first_error_number > 5:
# Verify error numbers decrease consecutively
assert [
_get_error_number(error) for error in status.last_heartbeat.errors
] == list(range(first_error_number, first_error_number - 5, -1))
assert not get_daemon_status(
instance,
SensorDaemon.daemon_type(),
curr_time_seconds=now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
).healthy
assert get_daemon_status(
instance,
SensorDaemon.daemon_type(),
curr_time_seconds=now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
ignore_errors=True,
).healthy
time.sleep(3)
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
# Error count does not rise above 5, continues to increase
assert len(status.last_heartbeat.errors) == 5
new_first_error_number = _get_error_number(
status.last_heartbeat.errors[0]
)
assert new_first_error_number > first_error_number
break
if (now - init_time).total_seconds() > 15:
raise Exception("timed out waiting for heartbeat error")
time.sleep(0.5)
# Once the sensor no longer raises errors, they should return to 0 once
# enough time passes
should_raise_errors = False
init_time = pendulum.now("UTC")
while True:
now = pendulum.now("UTC")
status = get_daemon_status(
instance,
SensorDaemon.daemon_type(),
now.float_timestamp,
heartbeat_interval_seconds=heartbeat_interval_seconds,
)
# Error count does not rise above 5
if len(status.last_heartbeat.errors) == 0:
break
if (now - init_time).total_seconds() > 15:
raise Exception("timed out waiting for hearrteat errors to return to 0")
time.sleep(0.5)
def resolve_allDaemonStatuses(self, _graphene_info):
return [
GrapheneDaemonStatus(get_daemon_status(self._instance,
daemon_type))
for daemon_type in required_daemons(self._instance)
]
