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jobs.py
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# -*- coding: utf-8 -*-
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
import datetime
import json
import logging
import multiprocessing
import os
import shutil
import six
import threading
import time
import unittest
from tempfile import mkdtemp
import sqlalchemy
from airflow import AirflowException, settings, models
from airflow.bin import cli
from airflow.executors import BaseExecutor, SequentialExecutor
from airflow.jobs import BaseJob, BackfillJob, SchedulerJob, LocalTaskJob
from airflow.models import DAG, DagModel, DagBag, DagRun, Pool, TaskInstance as TI
from airflow.operators.dummy_operator import DummyOperator
from airflow.operators.bash_operator import BashOperator
from airflow.task.task_runner.base_task_runner import BaseTaskRunner
from airflow.utils import timezone
from airflow.utils.dates import days_ago
from airflow.utils.db import provide_session
from airflow.utils.state import State
from airflow.utils.timeout import timeout
from airflow.utils.dag_processing import SimpleDag, SimpleDagBag, list_py_file_paths
from airflow.utils.net import get_hostname
from mock import Mock, patch, MagicMock, PropertyMock
from tests.executors.test_executor import TestExecutor
from tests.core import TEST_DAG_FOLDER
from airflow import configuration
configuration.load_test_config()
logger = logging.getLogger(__name__)
try:
from unittest import mock
except ImportError:
try:
import mock
except ImportError:
mock = None
DEV_NULL = '/dev/null'
DEFAULT_DATE = timezone.datetime(2016, 1, 1)
# Include the words "airflow" and "dag" in the file contents,
# tricking airflow into thinking these
# files contain a DAG (otherwise Airflow will skip them)
PARSEABLE_DAG_FILE_CONTENTS = '"airflow DAG"'
UNPARSEABLE_DAG_FILE_CONTENTS = 'airflow DAG'
# Filename to be used for dags that are created in an ad-hoc manner and can be removed/
# created at runtime
TEMP_DAG_FILENAME = "temp_dag.py"
TEST_DAGS_FOLDER = os.path.join(
os.path.dirname(os.path.realpath(__file__)), 'dags')
class BaseJobTest(unittest.TestCase):
class TestJob(BaseJob):
__mapper_args__ = {
'polymorphic_identity': 'TestJob'
}
def __init__(self, cb):
self.cb = cb
super(BaseJobTest.TestJob, self).__init__()
def _execute(self):
return self.cb()
def test_state_success(self):
job = self.TestJob(lambda: True)
job.run()
self.assertEquals(job.state, State.SUCCESS)
self.assertIsNotNone(job.end_date)
def test_state_sysexit(self):
import sys
job = self.TestJob(lambda: sys.exit(0))
job.run()
self.assertEquals(job.state, State.SUCCESS)
self.assertIsNotNone(job.end_date)
def test_state_failed(self):
def abort():
raise RuntimeError("fail")
job = self.TestJob(abort)
with self.assertRaises(RuntimeError):
job.run()
self.assertEquals(job.state, State.FAILED)
self.assertIsNotNone(job.end_date)
class BackfillJobTest(unittest.TestCase):
def setUp(self):
self.parser = cli.CLIFactory.get_parser()
self.dagbag = DagBag(include_examples=True)
@unittest.skipIf('sqlite' in configuration.conf.get('core', 'sql_alchemy_conn'),
"concurrent access not supported in sqlite")
def test_trigger_controller_dag(self):
dag = self.dagbag.get_dag('example_trigger_controller_dag')
target_dag = self.dagbag.get_dag('example_trigger_target_dag')
dag.clear()
target_dag.clear()
scheduler = SchedulerJob()
queue = Mock()
scheduler._process_task_instances(target_dag, queue=queue)
self.assertFalse(queue.append.called)
job = BackfillJob(
dag=dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
ignore_first_depends_on_past=True
)
job.run()
scheduler = SchedulerJob()
queue = Mock()
scheduler._process_task_instances(target_dag, queue=queue)
self.assertTrue(queue.append.called)
target_dag.clear()
dag.clear()
@unittest.skipIf('sqlite' in configuration.conf.get('core', 'sql_alchemy_conn'),
"concurrent access not supported in sqlite")
def test_backfill_multi_dates(self):
dag = self.dagbag.get_dag('example_bash_operator')
dag.clear()
job = BackfillJob(
dag=dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=1),
ignore_first_depends_on_past=True
)
job.run()
session = settings.Session()
drs = session.query(DagRun).filter(
DagRun.dag_id == 'example_bash_operator'
).order_by(DagRun.execution_date).all()
self.assertTrue(drs[0].execution_date == DEFAULT_DATE)
self.assertTrue(drs[0].state == State.SUCCESS)
self.assertTrue(drs[1].execution_date ==
DEFAULT_DATE + datetime.timedelta(days=1))
self.assertTrue(drs[1].state == State.SUCCESS)
dag.clear()
session.close()
@unittest.skipIf('sqlite' in configuration.conf.get('core', 'sql_alchemy_conn'),
"concurrent access not supported in sqlite")
def test_backfill_examples(self):
"""
Test backfilling example dags
Try to backfill some of the example dags. Be carefull, not all dags are suitable
for doing this. For example, a dag that sleeps forever, or does not have a
schedule won't work here since you simply can't backfill them.
"""
include_dags = {
'example_branch_operator',
'example_bash_operator',
'example_skip_dag',
'latest_only'
}
dags = [
dag for dag in self.dagbag.dags.values()
if 'example_dags' in dag.full_filepath and dag.dag_id in include_dags
]
for dag in dags:
dag.clear(
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE)
# Make sure that we have the dags that we want to test available
# in the example_dags folder, if this assertion fails, one of the
# dags in the include_dags array isn't available anymore
self.assertEqual(len(include_dags), len(dags))
for i, dag in enumerate(sorted(dags, key=lambda d: d.dag_id)):
logger.info('*** Running example DAG #{}: {}'.format(i, dag.dag_id))
job = BackfillJob(
dag=dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
ignore_first_depends_on_past=True)
job.run()
def test_backfill_conf(self):
dag = DAG(
dag_id='test_backfill_conf',
start_date=DEFAULT_DATE,
schedule_interval='@daily')
with dag:
DummyOperator(
task_id='op',
dag=dag)
dag.clear()
executor = TestExecutor(do_update=True)
conf = json.loads("""{"key": "value"}""")
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
conf=conf)
job.run()
dr = DagRun.find(dag_id='test_backfill_conf')
self.assertEqual(conf, dr[0].conf)
def test_backfill_rerun_failed_tasks(self):
dag = DAG(
dag_id='test_backfill_rerun_failed',
start_date=DEFAULT_DATE,
schedule_interval='@daily')
with dag:
DummyOperator(
task_id='test_backfill_rerun_failed_task-1',
dag=dag)
dag.clear()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
)
job.run()
ti = TI(task=dag.get_task('test_backfill_rerun_failed_task-1'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
ti.set_state(State.FAILED)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
rerun_failed_tasks=True
)
job.run()
ti = TI(task=dag.get_task('test_backfill_rerun_failed_task-1'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
self.assertEquals(ti.state, State.SUCCESS)
def test_backfill_rerun_upstream_failed_tasks(self):
dag = DAG(
dag_id='test_backfill_rerun_upstream_failed',
start_date=DEFAULT_DATE,
schedule_interval='@daily')
with dag:
t1 = DummyOperator(task_id='test_backfill_rerun_upstream_failed_task-1',
dag=dag)
t2 = DummyOperator(task_id='test_backfill_rerun_upstream_failed_task-2',
dag=dag)
t1.set_upstream(t2)
dag.clear()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
)
job.run()
ti = TI(task=dag.get_task('test_backfill_rerun_upstream_failed_task-1'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
ti.set_state(State.UPSTREAM_FAILED)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
rerun_failed_tasks=True
)
job.run()
ti = TI(task=dag.get_task('test_backfill_rerun_upstream_failed_task-1'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
self.assertEquals(ti.state, State.SUCCESS)
def test_backfill_rerun_failed_tasks_without_flag(self):
dag = DAG(
dag_id='test_backfill_rerun_failed',
start_date=DEFAULT_DATE,
schedule_interval='@daily')
with dag:
DummyOperator(
task_id='test_backfill_rerun_failed_task-1',
dag=dag)
dag.clear()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
)
job.run()
ti = TI(task=dag.get_task('test_backfill_rerun_failed_task-1'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
ti.set_state(State.FAILED)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
rerun_failed_tasks=False
)
with self.assertRaises(AirflowException):
job.run()
def test_backfill_ordered_concurrent_execute(self):
dag = DAG(
dag_id='test_backfill_ordered_concurrent_execute',
start_date=DEFAULT_DATE,
schedule_interval="@daily")
with dag:
op1 = DummyOperator(task_id='leave1')
op2 = DummyOperator(task_id='leave2')
op3 = DummyOperator(task_id='upstream_level_1')
op4 = DummyOperator(task_id='upstream_level_2')
op5 = DummyOperator(task_id='upstream_level_3')
# order randomly
op2.set_downstream(op3)
op1.set_downstream(op3)
op4.set_downstream(op5)
op3.set_downstream(op4)
dag.clear()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
executor=executor,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE + datetime.timedelta(days=2),
)
job.run()
# test executor history keeps a list
history = executor.history
# check if right order. Every loop has a 'pause' (0) to change state
# from RUNNING to SUCCESS.
# 6,0,3,0,3,0,3,0 = 8 loops
self.assertEqual(8, len(history))
loop_count = 0
while len(history) > 0:
queued_tasks = history.pop(0)
if loop_count == 0:
# first loop should contain 6 tasks (3 days x 2 tasks)
self.assertEqual(6, len(queued_tasks))
if loop_count == 2 or loop_count == 4 or loop_count == 6:
# 3 days x 1 task
self.assertEqual(3, len(queued_tasks))
loop_count += 1
def test_backfill_pooled_tasks(self):
"""
Test that queued tasks are executed by BackfillJob
"""
session = settings.Session()
pool = Pool(pool='test_backfill_pooled_task_pool', slots=1)
session.add(pool)
session.commit()
dag = self.dagbag.get_dag('test_backfill_pooled_task_dag')
dag.clear()
job = BackfillJob(
dag=dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE)
# run with timeout because this creates an infinite loop if not
# caught
with timeout(seconds=30):
job.run()
ti = TI(
task=dag.get_task('test_backfill_pooled_task'),
execution_date=DEFAULT_DATE)
ti.refresh_from_db()
self.assertEqual(ti.state, State.SUCCESS)
def test_backfill_depends_on_past(self):
"""
Test that backfill respects ignore_depends_on_past
"""
dag = self.dagbag.get_dag('test_depends_on_past')
dag.clear()
run_date = DEFAULT_DATE + datetime.timedelta(days=5)
# backfill should deadlock
self.assertRaisesRegexp(
AirflowException,
'BackfillJob is deadlocked',
BackfillJob(dag=dag, start_date=run_date, end_date=run_date).run)
BackfillJob(
dag=dag,
start_date=run_date,
end_date=run_date,
ignore_first_depends_on_past=True).run()
# ti should have succeeded
ti = TI(dag.tasks[0], run_date)
ti.refresh_from_db()
self.assertEquals(ti.state, State.SUCCESS)
def test_run_ignores_all_dependencies(self):
"""
Test that run respects ignore_all_dependencies
"""
dag_id = 'test_run_ignores_all_dependencies'
dag = self.dagbag.get_dag('test_run_ignores_all_dependencies')
dag.clear()
task0_id = 'test_run_dependent_task'
args0 = ['run',
'-A',
dag_id,
task0_id,
DEFAULT_DATE.isoformat()]
cli.run(self.parser.parse_args(args0))
ti_dependent0 = TI(
task=dag.get_task(task0_id),
execution_date=DEFAULT_DATE)
ti_dependent0.refresh_from_db()
self.assertEquals(ti_dependent0.state, State.FAILED)
task1_id = 'test_run_dependency_task'
args1 = ['run',
'-A',
dag_id,
task1_id,
(DEFAULT_DATE + datetime.timedelta(days=1)).isoformat()]
cli.run(self.parser.parse_args(args1))
ti_dependency = TI(
task=dag.get_task(task1_id),
execution_date=DEFAULT_DATE + datetime.timedelta(days=1))
ti_dependency.refresh_from_db()
self.assertEquals(ti_dependency.state, State.FAILED)
task2_id = 'test_run_dependent_task'
args2 = ['run',
'-A',
dag_id,
task2_id,
(DEFAULT_DATE + datetime.timedelta(days=1)).isoformat()]
cli.run(self.parser.parse_args(args2))
ti_dependent = TI(
task=dag.get_task(task2_id),
execution_date=DEFAULT_DATE + datetime.timedelta(days=1))
ti_dependent.refresh_from_db()
self.assertEquals(ti_dependent.state, State.SUCCESS)
def test_run_naive_taskinstance(self):
"""
Test that we can run naive (non-localized) task instances
"""
NAIVE_DATE = datetime.datetime(2016, 1, 1)
dag_id = 'test_run_ignores_all_dependencies'
dag = self.dagbag.get_dag('test_run_ignores_all_dependencies')
dag.clear()
task0_id = 'test_run_dependent_task'
args0 = ['run',
'-A',
dag_id,
task0_id,
NAIVE_DATE.isoformat()]
cli.run(self.parser.parse_args(args0))
ti_dependent0 = TI(
task=dag.get_task(task0_id),
execution_date=NAIVE_DATE)
ti_dependent0.refresh_from_db()
self.assertEquals(ti_dependent0.state, State.FAILED)
def test_cli_backfill_depends_on_past(self):
"""
Test that CLI respects -I argument
"""
dag_id = 'test_dagrun_states_deadlock'
run_date = DEFAULT_DATE + datetime.timedelta(days=1)
args = [
'backfill',
dag_id,
'-l',
'-s',
run_date.isoformat(),
]
dag = self.dagbag.get_dag(dag_id)
dag.clear()
self.assertRaisesRegexp(
AirflowException,
'BackfillJob is deadlocked',
cli.backfill,
self.parser.parse_args(args))
cli.backfill(self.parser.parse_args(args + ['-I']))
ti = TI(dag.get_task('test_depends_on_past'), run_date)
ti.refresh_from_db()
# task ran
self.assertEqual(ti.state, State.SUCCESS)
dag.clear()
def test_cli_receives_delay_arg(self):
"""
Tests that the --delay argument is passed correctly to the BackfillJob
"""
dag_id = 'example_bash_operator'
run_date = DEFAULT_DATE
args = [
'backfill',
dag_id,
'-s',
run_date.isoformat(),
'--delay_on_limit',
'0.5',
]
parsed_args = self.parser.parse_args(args)
self.assertEqual(0.5, parsed_args.delay_on_limit)
def _get_dag_test_max_active_limits(self, dag_id, max_active_runs=1):
dag = DAG(
dag_id=dag_id,
start_date=DEFAULT_DATE,
schedule_interval="@hourly",
max_active_runs=max_active_runs
)
with dag:
op1 = DummyOperator(task_id='leave1')
op2 = DummyOperator(task_id='leave2')
op3 = DummyOperator(task_id='upstream_level_1')
op4 = DummyOperator(task_id='upstream_level_2')
op1 >> op2 >> op3
op4 >> op3
dag.clear()
return dag
def test_backfill_max_limit_check_within_limit(self):
dag = self._get_dag_test_max_active_limits(
'test_backfill_max_limit_check_within_limit',
max_active_runs=16)
start_date = DEFAULT_DATE - datetime.timedelta(hours=1)
end_date = DEFAULT_DATE
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
start_date=start_date,
end_date=end_date,
executor=executor,
donot_pickle=True)
job.run()
dagruns = DagRun.find(dag_id=dag.dag_id)
self.assertEqual(2, len(dagruns))
self.assertTrue(all([run.state == State.SUCCESS for run in dagruns]))
def test_backfill_max_limit_check(self):
dag_id = 'test_backfill_max_limit_check'
run_id = 'test_dagrun'
start_date = DEFAULT_DATE - datetime.timedelta(hours=1)
end_date = DEFAULT_DATE
dag_run_created_cond = threading.Condition()
def run_backfill(cond):
cond.acquire()
try:
dag = self._get_dag_test_max_active_limits(dag_id)
# this session object is different than the one in the main thread
thread_session = settings.Session()
# Existing dagrun that is not within the backfill range
dag.create_dagrun(
run_id=run_id,
state=State.RUNNING,
execution_date=DEFAULT_DATE + datetime.timedelta(hours=1),
start_date=DEFAULT_DATE,
)
thread_session.commit()
cond.notify()
finally:
cond.release()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
start_date=start_date,
end_date=end_date,
executor=executor,
donot_pickle=True)
job.run()
thread_session.close()
backfill_job_thread = threading.Thread(target=run_backfill,
name="run_backfill",
args=(dag_run_created_cond,))
dag_run_created_cond.acquire()
session = settings.Session()
backfill_job_thread.start()
try:
# at this point backfill can't run since the max_active_runs has been
# reached, so it is waiting
dag_run_created_cond.wait(timeout=1.5)
dagruns = DagRun.find(dag_id=dag_id)
dr = dagruns[0]
self.assertEqual(1, len(dagruns))
self.assertEqual(dr.run_id, run_id)
# allow the backfill to execute by setting the existing dag run to SUCCESS,
# backfill will execute dag runs 1 by 1
dr.set_state(State.SUCCESS)
session.merge(dr)
session.commit()
session.close()
backfill_job_thread.join()
dagruns = DagRun.find(dag_id=dag_id)
self.assertEqual(3, len(dagruns)) # 2 from backfill + 1 existing
self.assertEqual(dagruns[-1].run_id, dr.run_id)
finally:
dag_run_created_cond.release()
def test_backfill_max_limit_check_no_count_existing(self):
dag = self._get_dag_test_max_active_limits(
'test_backfill_max_limit_check_no_count_existing')
start_date = DEFAULT_DATE
end_date = DEFAULT_DATE
# Existing dagrun that is within the backfill range
dag.create_dagrun(run_id="test_existing_backfill",
state=State.RUNNING,
execution_date=DEFAULT_DATE,
start_date=DEFAULT_DATE)
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
start_date=start_date,
end_date=end_date,
executor=executor,
donot_pickle=True)
job.run()
# BackfillJob will run since the existing DagRun does not count for the max
# active limit since it's within the backfill date range.
dagruns = DagRun.find(dag_id=dag.dag_id)
# will only be able to run 1 (the existing one) since there's just
# one dag run slot left given the max_active_runs limit
self.assertEqual(1, len(dagruns))
self.assertEqual(State.SUCCESS, dagruns[0].state)
def test_backfill_max_limit_check_complete_loop(self):
dag = self._get_dag_test_max_active_limits(
'test_backfill_max_limit_check_complete_loop')
start_date = DEFAULT_DATE - datetime.timedelta(hours=1)
end_date = DEFAULT_DATE
# Given the max limit to be 1 in active dag runs, we need to run the
# backfill job 3 times
success_expected = 2
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=dag,
start_date=start_date,
end_date=end_date,
executor=executor,
donot_pickle=True)
job.run()
success_dagruns = len(DagRun.find(dag_id=dag.dag_id, state=State.SUCCESS))
running_dagruns = len(DagRun.find(dag_id=dag.dag_id, state=State.RUNNING))
self.assertEqual(success_expected, success_dagruns)
self.assertEqual(0, running_dagruns) # no dag_runs in running state are left
def test_sub_set_subdag(self):
dag = DAG(
'test_sub_set_subdag',
start_date=DEFAULT_DATE,
default_args={'owner': 'owner1'})
with dag:
op1 = DummyOperator(task_id='leave1')
op2 = DummyOperator(task_id='leave2')
op3 = DummyOperator(task_id='upstream_level_1')
op4 = DummyOperator(task_id='upstream_level_2')
op5 = DummyOperator(task_id='upstream_level_3')
# order randomly
op2.set_downstream(op3)
op1.set_downstream(op3)
op4.set_downstream(op5)
op3.set_downstream(op4)
dag.clear()
dr = dag.create_dagrun(run_id="test",
state=State.RUNNING,
execution_date=DEFAULT_DATE,
start_date=DEFAULT_DATE)
executor = TestExecutor(do_update=True)
sub_dag = dag.sub_dag(task_regex="leave*",
include_downstream=False,
include_upstream=False)
job = BackfillJob(dag=sub_dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
executor=executor)
job.run()
self.assertRaises(sqlalchemy.orm.exc.NoResultFound, dr.refresh_from_db)
# the run_id should have changed, so a refresh won't work
drs = DagRun.find(dag_id=dag.dag_id, execution_date=DEFAULT_DATE)
dr = drs[0]
self.assertEqual(BackfillJob.ID_FORMAT_PREFIX.format(DEFAULT_DATE.isoformat()),
dr.run_id)
for ti in dr.get_task_instances():
if ti.task_id == 'leave1' or ti.task_id == 'leave2':
self.assertEqual(State.SUCCESS, ti.state)
else:
self.assertEqual(State.NONE, ti.state)
def test_backfill_fill_blanks(self):
dag = DAG(
'test_backfill_fill_blanks',
start_date=DEFAULT_DATE,
default_args={'owner': 'owner1'},
)
with dag:
op1 = DummyOperator(task_id='op1')
op2 = DummyOperator(task_id='op2')
op3 = DummyOperator(task_id='op3')
op4 = DummyOperator(task_id='op4')
op5 = DummyOperator(task_id='op5')
op6 = DummyOperator(task_id='op6')
dag.clear()
dr = dag.create_dagrun(run_id='test',
state=State.RUNNING,
execution_date=DEFAULT_DATE,
start_date=DEFAULT_DATE)
executor = TestExecutor(do_update=True)
session = settings.Session()
tis = dr.get_task_instances()
for ti in tis:
if ti.task_id == op1.task_id:
ti.state = State.UP_FOR_RETRY
ti.end_date = DEFAULT_DATE
elif ti.task_id == op2.task_id:
ti.state = State.FAILED
elif ti.task_id == op3.task_id:
ti.state = State.SKIPPED
elif ti.task_id == op4.task_id:
ti.state = State.SCHEDULED
elif ti.task_id == op5.task_id:
ti.state = State.UPSTREAM_FAILED
# op6 = None
session.merge(ti)
session.commit()
session.close()
job = BackfillJob(dag=dag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
executor=executor)
self.assertRaisesRegexp(
AirflowException,
'Some task instances failed',
job.run)
self.assertRaises(sqlalchemy.orm.exc.NoResultFound, dr.refresh_from_db)
# the run_id should have changed, so a refresh won't work
drs = DagRun.find(dag_id=dag.dag_id, execution_date=DEFAULT_DATE)
dr = drs[0]
self.assertEqual(dr.state, State.FAILED)
tis = dr.get_task_instances()
for ti in tis:
if ti.task_id in (op1.task_id, op4.task_id, op6.task_id):
self.assertEqual(ti.state, State.SUCCESS)
elif ti.task_id == op2.task_id:
self.assertEqual(ti.state, State.FAILED)
elif ti.task_id == op3.task_id:
self.assertEqual(ti.state, State.SKIPPED)
elif ti.task_id == op5.task_id:
self.assertEqual(ti.state, State.UPSTREAM_FAILED)
def test_backfill_execute_subdag(self):
dag = self.dagbag.get_dag('example_subdag_operator')
subdag_op_task = dag.get_task('section-1')
subdag = subdag_op_task.subdag
subdag.schedule_interval = '@daily'
start_date = timezone.utcnow()
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=subdag,
start_date=start_date,
end_date=start_date,
executor=executor,
donot_pickle=True)
job.run()
history = executor.history
subdag_history = history[0]
# check that all 5 task instances of the subdag 'section-1' were executed
self.assertEqual(5, len(subdag_history))
for sdh in subdag_history:
ti = sdh[3]
self.assertIn('section-1-task-', ti.task_id)
subdag.clear()
dag.clear()
def test_subdag_clear_parentdag_downstream_clear(self):
dag = self.dagbag.get_dag('example_subdag_operator')
subdag_op_task = dag.get_task('section-1')
subdag = subdag_op_task.subdag
subdag.schedule_interval = '@daily'
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=subdag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
executor=executor,
donot_pickle=True)
with timeout(seconds=30):
job.run()
ti0 = TI(
task=subdag.get_task('section-1-task-1'),
execution_date=DEFAULT_DATE)
ti0.refresh_from_db()
self.assertEqual(ti0.state, State.SUCCESS)
sdag = subdag.sub_dag(
task_regex='section-1-task-1',
include_downstream=True,
include_upstream=False)
sdag.clear(
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
include_parentdag=True)
ti0.refresh_from_db()
self.assertEquals(State.NONE, ti0.state)
ti1 = TI(
task=dag.get_task('some-other-task'),
execution_date=DEFAULT_DATE)
self.assertEquals(State.NONE, ti1.state)
# Checks that all the Downstream tasks for Parent DAG
# have been cleared
for task in subdag_op_task.downstream_list:
ti = TI(
task=dag.get_task(task.task_id),
execution_date=DEFAULT_DATE
)
self.assertEquals(State.NONE, ti.state)
subdag.clear()
dag.clear()
def test_backfill_execute_subdag_with_removed_task(self):
"""
Ensure that subdag operators execute properly in the case where
an associated task of the subdag has been removed from the dag
definition, but has instances in the database from previous runs.
"""
dag = self.dagbag.get_dag('example_subdag_operator')
subdag = dag.get_task('section-1').subdag
executor = TestExecutor(do_update=True)
job = BackfillJob(dag=subdag,
start_date=DEFAULT_DATE,
end_date=DEFAULT_DATE,
executor=executor,
donot_pickle=True)
removed_task_ti = TI(
task=DummyOperator(task_id='removed_task'),
execution_date=DEFAULT_DATE,
state=State.REMOVED)
removed_task_ti.dag_id = subdag.dag_id
session = settings.Session()
session.merge(removed_task_ti)
with timeout(seconds=30):
job.run()
for task in subdag.tasks:
instance = session.query(TI).filter(
TI.dag_id == subdag.dag_id,
TI.task_id == task.task_id,
TI.execution_date == DEFAULT_DATE).first()
self.assertIsNotNone(instance)
self.assertEqual(instance.state, State.SUCCESS)
removed_task_ti.refresh_from_db()
self.assertEqual(removed_task_ti.state, State.REMOVED)
subdag.clear()
dag.clear()
def test_update_counters(self):