def _set_intermediates(step_context, step_output, step_output_handle, output,
version):
if step_output.asset_store_handle:
# use asset_store if it's configured on provided by the user
res = _set_addressable_asset(step_context, step_output_handle,
step_output.asset_store_handle,
output.value)
if isinstance(res, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(step_context, res)
else:
res = step_context.intermediate_storage.set_intermediate(
context=step_context,
dagster_type=step_output.dagster_type,
step_output_handle=step_output_handle,
value=output.value,
version=version,
)
if isinstance(res, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
res, value_name=output.output_name),
)
def _set_intermediates(step_context, step_output, step_output_handle, output,
version):
if step_context.using_asset_store(step_output_handle):
res = _set_addressable_asset(step_context, step_output_handle,
output.value)
for evt in res:
if isinstance(evt, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(step_context, evt)
if isinstance(evt, AssetMaterialization):
yield DagsterEvent.step_materialization(step_context, evt)
else:
res = step_context.intermediate_storage.set_intermediate(
context=step_context,
dagster_type=step_output.dagster_type,
step_output_handle=step_output_handle,
value=output.value,
version=version,
)
if isinstance(res, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
res, value_name=output.output_name),
)
def _set_objects(step_context, step_output, step_output_handle, output):
from dagster.core.storage.asset_store import AssetStoreHandle
output_def = step_output.output_def
output_manager = step_context.get_output_manager(step_output_handle)
output_context = step_context.get_output_context(step_output_handle)
materializations = output_manager.handle_output(output_context,
output.value)
# TODO yuhan retire ObjectStoreOperation https://github.com/dagster-io/dagster/issues/3043
if isinstance(materializations, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
materializations, value_name=step_output_handle.output_name),
)
else:
for evt in _materializations_to_events(step_context,
step_output_handle,
materializations):
yield evt
# SET_ASSET operation by AssetStore
yield DagsterEvent.asset_store_operation(
step_context,
AssetStoreOperation(
AssetStoreOperationType.SET_ASSET,
step_output_handle,
AssetStoreHandle(output_def.manager_key, output_def.metadata),
),
)
def _set_intermediates(step_context, step_output, step_output_handle, output):
res = step_context.intermediate_storage.set_intermediate(
context=step_context,
dagster_type=step_output.dagster_type,
step_output_handle=step_output_handle,
value=output.value,
)
if isinstance(res, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(res,
value_name=output.output_name))
def copy_required_intermediates_for_execution(pipeline_context,
execution_plan):
"""
Uses the intermediates manager to copy intermediates from the previous run that apply to the
current execution plan, and yields the corresponding events
"""
check.inst_param(pipeline_context, "pipeline_context",
SystemExecutionContext)
check.inst_param(execution_plan, "execution_plan", ExecutionPlan)
parent_run_id = pipeline_context.pipeline_run.parent_run_id
if not parent_run_id:
return
parent_run_logs = pipeline_context.instance.all_logs(parent_run_id)
output_handles_for_current_run = output_handles_from_execution_plan(
execution_plan)
output_handles_from_previous_run = output_handles_from_event_logs(
parent_run_logs)
output_handles_to_copy = output_handles_for_current_run.intersection(
output_handles_from_previous_run)
output_handles_to_copy_by_step = defaultdict(list)
for handle in output_handles_to_copy:
output_handles_to_copy_by_step[handle.step_key].append(handle)
intermediate_storage = pipeline_context.intermediate_storage
for step in execution_plan.get_all_steps_in_topo_order():
handles_to_copy = output_handles_to_copy_by_step.get(step.key, [])
# exit early to avoid trying to make a context from an UnresolvedExecutionStep
if not handles_to_copy:
continue
step_context = pipeline_context.for_step(step)
for handle in handles_to_copy:
if intermediate_storage.has_intermediate(pipeline_context, handle):
continue
operation = intermediate_storage.copy_intermediate_from_run(
pipeline_context, parent_run_id, handle)
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
operation, value_name=handle.output_name),
)
def _set_objects(step_context, step_output, step_output_handle, output):
from dagster.core.storage.asset_store import AssetStoreHandle
output_def = step_output.output_def
output_manager = step_context.get_output_manager(step_output_handle)
output_context = step_context.get_output_context(step_output_handle)
with user_code_error_boundary(
DagsterExecutionHandleOutputError,
control_flow_exceptions=[Failure, RetryRequested],
msg_fn=lambda:
(f"Error occurred during the the handling of step output:"
f' step key: "{step_context.step.key}"'
f' output name: "{output_context.name}"'),
step_key=step_context.step.key,
output_name=output_context.name,
):
materializations = output_manager.handle_output(
output_context, output.value)
# TODO yuhan retire ObjectStoreOperation https://github.com/dagster-io/dagster/issues/3043
if isinstance(materializations, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
materializations, value_name=step_output_handle.output_name),
)
else:
for evt in _materializations_to_events(step_context,
step_output_handle,
materializations):
yield evt
# SET_ASSET operation by AssetStore
yield DagsterEvent.asset_store_operation(
step_context,
AssetStoreOperation.serializable(
AssetStoreOperation(
AssetStoreOperationType.SET_ASSET,
step_output_handle,
AssetStoreHandle(output_def.manager_key,
output_def.metadata),
)),
)
def core_dagster_event_sequence_for_step(step_context, prior_attempt_count):
"""
Execute the step within the step_context argument given the in-memory
events. This function yields a sequence of DagsterEvents, but without
catching any exceptions that have bubbled up during the computation
of the step.
"""
check.inst_param(step_context, "step_context", SystemStepExecutionContext)
check.int_param(prior_attempt_count, "prior_attempt_count")
if prior_attempt_count > 0:
yield DagsterEvent.step_restarted_event(step_context,
prior_attempt_count)
else:
yield DagsterEvent.step_start_event(step_context)
inputs = {}
for input_name, input_value in _input_values_from_intermediate_storage(
step_context):
if isinstance(input_value, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(input_value,
value_name=input_name))
inputs[input_name] = input_value.obj
elif isinstance(input_value, MultipleStepOutputsListWrapper):
for op in input_value:
if isinstance(input_value, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
op, value_name=input_name))
elif isinstance(input_value, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(
step_context, input_value)
inputs[input_name] = [op.obj for op in input_value]
elif isinstance(input_value, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(step_context, input_value)
inputs[input_name] = input_value.obj
else:
inputs[input_name] = input_value
for input_name, input_value in inputs.items():
for evt in check.generator(
_type_checked_event_sequence_for_input(step_context,
input_name,
input_value)):
yield evt
with time_execution_scope() as timer_result:
user_event_sequence = check.generator(
_user_event_sequence_for_step_compute_fn(step_context, inputs))
# It is important for this loop to be indented within the
# timer block above in order for time to be recorded accurately.
for user_event in check.generator(
_step_output_error_checked_user_event_sequence(
step_context, user_event_sequence)):
if isinstance(user_event, Output):
for evt in _create_step_events_for_output(
step_context, user_event):
yield evt
elif isinstance(user_event,
(AssetMaterialization, Materialization)):
yield DagsterEvent.step_materialization(
step_context, user_event)
elif isinstance(user_event, ExpectationResult):
yield DagsterEvent.step_expectation_result(
step_context, user_event)
else:
check.failed(
"Unexpected event {event}, should have been caught earlier"
.format(event=user_event))
yield DagsterEvent.step_success_event(
step_context, StepSuccessData(duration_ms=timer_result.millis))
def core_dagster_event_sequence_for_step(step_context, prior_attempt_count):
"""
Execute the step within the step_context argument given the in-memory
events. This function yields a sequence of DagsterEvents, but without
catching any exceptions that have bubbled up during the computation
of the step.
"""
check.inst_param(step_context, "step_context", SystemStepExecutionContext)
check.int_param(prior_attempt_count, "prior_attempt_count")
if prior_attempt_count > 0:
yield DagsterEvent.step_restarted_event(step_context,
prior_attempt_count)
else:
yield DagsterEvent.step_start_event(step_context)
inputs = {}
for input_name, input_value in _load_input_values(step_context):
# TODO yuhan retire ObjectStoreOperation https://github.com/dagster-io/dagster/issues/3043
if isinstance(input_value, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(input_value,
value_name=input_name))
inputs[input_name] = input_value.obj
elif isinstance(input_value, FanInStepInputValuesWrapper):
final_values = []
for inner_value in input_value:
# inner value is either a store interaction
# TODO yuhan retire ObjectStoreOperation https://github.com/dagster-io/dagster/issues/3043
if isinstance(inner_value, ObjectStoreOperation):
yield DagsterEvent.object_store_operation(
step_context,
ObjectStoreOperation.serializable(
inner_value, value_name=input_name),
)
final_values.append(inner_value.obj)
elif isinstance(inner_value, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(
step_context,
AssetStoreOperation.serializable(inner_value))
final_values.append(inner_value.obj)
# or the value directly
else:
final_values.append(inner_value)
inputs[input_name] = final_values
elif isinstance(input_value, AssetStoreOperation):
yield DagsterEvent.asset_store_operation(
step_context, AssetStoreOperation.serializable(input_value))
inputs[input_name] = input_value.obj
else:
inputs[input_name] = input_value
for input_name, input_value in inputs.items():
for evt in check.generator(
_type_checked_event_sequence_for_input(step_context,
input_name,
input_value)):
yield evt
with time_execution_scope() as timer_result:
user_event_sequence = check.generator(
_user_event_sequence_for_step_compute_fn(step_context, inputs))
# It is important for this loop to be indented within the
# timer block above in order for time to be recorded accurately.
for user_event in check.generator(
_step_output_error_checked_user_event_sequence(
step_context, user_event_sequence)):
if isinstance(user_event, (Output, DynamicOutput)):
for evt in _create_step_events_for_output(
step_context, user_event):
yield evt
elif isinstance(user_event,
(AssetMaterialization, Materialization)):
yield DagsterEvent.step_materialization(
step_context, user_event)
elif isinstance(user_event, ExpectationResult):
yield DagsterEvent.step_expectation_result(
step_context, user_event)
else:
check.failed(
"Unexpected event {event}, should have been caught earlier"
.format(event=user_event))
yield DagsterEvent.step_success_event(
step_context, StepSuccessData(duration_ms=timer_result.millis))
