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scheduler_api_test.py
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# -*- coding: utf-8 -*-
#
# Copyright 2012-2015 Spotify AB
#
# Licensed 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.
#
import itertools
import mock
import time
from helpers import unittest
from nose.plugins.attrib import attr
import luigi.notifications
from luigi.scheduler import DISABLED, DONE, FAILED, PENDING, \
UNKNOWN, RUNNING, BATCH_RUNNING, UPSTREAM_RUNNING, Scheduler
luigi.notifications.DEBUG = True
WORKER = 'myworker'
@attr('scheduler')
class SchedulerApiTest(unittest.TestCase):
def setUp(self):
super(SchedulerApiTest, self).setUp()
conf = self.get_scheduler_config()
self.sch = Scheduler(**conf)
self.time = time.time
def get_scheduler_config(self):
return {
'retry_delay': 100,
'remove_delay': 1000,
'worker_disconnect_delay': 10,
'disable_persist': 10,
'disable_window': 10,
'retry_count': 3,
'disable_hard_timeout': 60 * 60,
}
def tearDown(self):
super(SchedulerApiTest, self).tearDown()
if time.time != self.time:
time.time = self.time
def setTime(self, t):
time.time = lambda: t
def test_dep(self):
self.sch.add_task(worker=WORKER, task_id='B', deps=('A',))
self.sch.add_task(worker=WORKER, task_id='A')
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'A')
self.sch.add_task(worker=WORKER, task_id='A', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'B')
self.sch.add_task(worker=WORKER, task_id='B', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None)
def test_failed_dep(self):
self.sch.add_task(worker=WORKER, task_id='B', deps=('A',))
self.sch.add_task(worker=WORKER, task_id='A')
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'A')
self.sch.add_task(worker=WORKER, task_id='A', status=FAILED)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None) # can still wait and retry: TODO: do we want this?
self.sch.add_task(worker=WORKER, task_id='A', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'B')
self.sch.add_task(worker=WORKER, task_id='B', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None)
def test_broken_dep(self):
self.sch.add_task(worker=WORKER, task_id='B', deps=('A',))
self.sch.add_task(worker=WORKER, task_id='A', runnable=False)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None) # can still wait and retry: TODO: do we want this?
self.sch.add_task(worker=WORKER, task_id='A', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'B')
self.sch.add_task(worker=WORKER, task_id='B', status=DONE)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None)
def test_two_workers(self):
# Worker X wants to build A -> B
# Worker Y wants to build A -> C
self.sch.add_task(worker='X', task_id='A')
self.sch.add_task(worker='Y', task_id='A')
self.sch.add_task(task_id='B', deps=('A',), worker='X')
self.sch.add_task(task_id='C', deps=('A',), worker='Y')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'A')
self.assertEqual(self.sch.get_work(worker='Y')['task_id'], None) # Worker Y is pending on A to be done
self.sch.add_task(worker='X', task_id='A', status=DONE)
self.assertEqual(self.sch.get_work(worker='Y')['task_id'], 'C')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'B')
def test_status_wont_override(self):
# Worker X is running A
# Worker Y wants to override the status to UNKNOWN (e.g. complete is throwing an exception)
self.sch.add_task(worker='X', task_id='A')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'A')
self.sch.add_task(worker='Y', task_id='A', status=UNKNOWN)
self.assertEqual({'A'}, set(self.sch.task_list(RUNNING, '').keys()))
def test_retry(self):
# Try to build A but fails, will retry after 100s
self.setTime(0)
self.sch.add_task(worker=WORKER, task_id='A')
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'A')
self.sch.add_task(worker=WORKER, task_id='A', status=FAILED)
for t in range(100):
self.setTime(t)
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], None)
self.sch.ping(worker=WORKER)
if t % 10 == 0:
self.sch.prune()
self.setTime(101)
self.sch.prune()
self.assertEqual(self.sch.get_work(worker=WORKER)['task_id'], 'A')
def test_resend_task(self):
self.sch.add_task(worker=WORKER, task_id='A')
self.sch.add_task(worker=WORKER, task_id='B')
for _ in range(10):
self.assertEqual('A', self.sch.get_work(worker=WORKER, current_tasks=[])['task_id'])
self.assertEqual('B', self.sch.get_work(worker=WORKER, current_tasks=['A'])['task_id'])
def test_resend_multiple_tasks(self):
self.sch.add_task(worker=WORKER, task_id='A')
self.sch.add_task(worker=WORKER, task_id='B')
self.sch.add_task(worker=WORKER, task_id='C')
# get A and B running
self.assertEqual('A', self.sch.get_work(worker=WORKER)['task_id'])
self.assertEqual('B', self.sch.get_work(worker=WORKER)['task_id'])
for _ in range(10):
self.assertEqual('A', self.sch.get_work(worker=WORKER, current_tasks=[])['task_id'])
self.assertEqual('A', self.sch.get_work(worker=WORKER, current_tasks=['B'])['task_id'])
self.assertEqual('B', self.sch.get_work(worker=WORKER, current_tasks=['A'])['task_id'])
self.assertEqual('C', self.sch.get_work(worker=WORKER, current_tasks=['A', 'B'])['task_id'])
def test_disconnect_running(self):
# X and Y wants to run A.
# X starts but does not report back. Y does.
# After some timeout, Y will build it instead
self.setTime(0)
self.sch.add_task(task_id='A', worker='X')
self.sch.add_task(task_id='A', worker='Y')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'A')
for t in range(200):
self.setTime(t)
self.sch.ping(worker='Y')
if t % 10 == 0:
self.sch.prune()
self.assertEqual(self.sch.get_work(worker='Y')['task_id'], 'A')
def test_get_work_single_batch_item(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True)
response = self.sch.get_work(worker=WORKER)
self.assertEqual('A_a_1', response['task_id'])
param_values = response['task_params'].values()
self.assertTrue(not any(isinstance(param, list)) for param in param_values)
def test_get_work_multiple_batch_items(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, batchable=True)
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': ['1', '2', '3']}, response['task_params'])
self.assertEqual('A', response['task_family'])
def test_batch_time_running(self):
self.setTime(1234)
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, batchable=True)
self.sch.get_work(worker=WORKER)
for task in self.sch.task_list().values():
self.assertEqual(1234, task['time_running'])
def test_batch_ignore_items_not_ready(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, deps=['NOT_DONE'],
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, deps=['DONE'],
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_4', family='A', params={'a': '4'}, deps=['DONE'],
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_5', family='A', params={'a': '5'}, deps=['NOT_DONE'],
batchable=True)
self.sch.add_task(worker=WORKER, task_id='NOT_DONE', runnable=False)
self.sch.add_task(worker=WORKER, task_id='DONE', status=DONE)
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': ['1', '3', '4']}, response['task_params'])
self.assertEqual('A', response['task_family'])
def test_batch_ignore_first_item_not_ready(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, deps=['NOT_DONE'],
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, deps=['DONE'],
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, deps=['DONE'],
batchable=True)
self.sch.add_task(worker=WORKER, task_id='NOT_DONE', runnable=False)
self.sch.add_task(worker=WORKER, task_id='DONE', status=DONE)
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': ['2', '3']}, response['task_params'])
self.assertEqual('A', response['task_family'])
def test_get_work_with_batch_items_with_resources(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True,
resources={'r1': 1})
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, batchable=True,
resources={'r1': 1})
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, batchable=True,
resources={'r1': 1})
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': ['1', '2', '3']}, response['task_params'])
self.assertEqual('A', response['task_family'])
def test_get_work_limited_batch_size(self):
self.sch.add_task_batcher(
worker=WORKER, task_family='A', batched_args=['a'], max_batch_size=2)
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True,
priority=1)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, batchable=True,
priority=2)
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': ['3', '1']}, response['task_params'])
self.assertEqual('A', response['task_family'])
response2 = self.sch.get_work(worker=WORKER)
self.assertEqual('A_a_2', response2['task_id'])
def test_get_work_do_not_batch_non_batchable_item(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_a_1', family='A', params={'a': '1'}, batchable=True,
priority=1)
self.sch.add_task(
worker=WORKER, task_id='A_a_2', family='A', params={'a': '2'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_a_3', family='A', params={'a': '3'}, batchable=False,
priority=2)
response = self.sch.get_work(worker=WORKER)
self.assertEqual('A_a_3', response['task_id'])
response2 = self.sch.get_work(worker=WORKER)
self.assertIsNone(response2['task_id'])
self.assertEqual({'a': ['1', '2']}, response2['task_params'])
self.assertEqual('A', response2['task_family'])
def test_get_work_group_on_non_batch_params(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['b'])
for a, b, c in itertools.product((1, 2), repeat=3):
self.sch.add_task(
worker=WORKER, task_id='A_%i_%i_%i' % (a, b, c), family='A',
params={'a': str(a), 'b': str(b), 'c': str(c)}, batchable=True,
priority=9 * a + 3 * c + b)
for a, c in [('2', '2'), ('2', '1'), ('1', '2'), ('1', '1')]:
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
self.assertEqual({'a': a, 'b': ['2', '1'], 'c': c}, response['task_params'])
self.assertEqual('A', response['task_family'])
def test_get_work_multiple_batched_params(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a', 'b'])
self.sch.add_task(
worker=WORKER, task_id='A_1_1', family='A', params={'a': '1', 'b': '1'}, priority=1,
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_1_2', family='A', params={'a': '1', 'b': '2'}, priority=2,
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_2_1', family='A', params={'a': '2', 'b': '1'}, priority=3,
batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_2_2', family='A', params={'a': '2', 'b': '2'}, priority=4,
batchable=True)
response = self.sch.get_work(worker=WORKER)
self.assertIsNone(response['task_id'])
expected_params = {
'a': ['2', '2', '1', '1'],
'b': ['2', '1', '2', '1'],
}
self.assertEqual(expected_params, response['task_params'])
def test_get_work_with_unbatched_worker_on_batched_task(self):
self.sch.add_task_batcher(worker='batcher', task_family='A', batched_args=['a'])
for i in range(5):
self.sch.add_task(
worker=WORKER, task_id='A_%i' % i, family='A', params={'a': str(i)}, priority=i,
batchable=False)
self.sch.add_task(
worker='batcher', task_id='A_%i' % i, family='A', params={'a': str(i)}, priority=i,
batchable=True)
self.assertEqual('A_4', self.sch.get_work(worker=WORKER)['task_id'])
batch_response = self.sch.get_work(worker='batcher')
self.assertIsNone(batch_response['task_id'])
self.assertEqual({'a': ['3', '2', '1', '0']}, batch_response['task_params'])
def test_batched_tasks_become_batch_running(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': 1}, batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': 2}, batchable=True)
self.sch.get_work(worker=WORKER)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list('BATCH_RUNNING', '').keys()))
def test_downstream_jobs_from_batch_running_have_upstream_running_status(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': 1}, batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': 2}, batchable=True)
self.sch.get_work(worker=WORKER)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list('BATCH_RUNNING', '').keys()))
self.sch.add_task(worker=WORKER, task_id='B', deps=['A_1'])
self.assertEqual({'B'}, set(self.sch.task_list(PENDING, UPSTREAM_RUNNING).keys()))
def test_set_batch_runner_new_task(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
response = self.sch.get_work(worker=WORKER)
batch_id = response['batch_id']
self.sch.add_task(
worker=WORKER, task_id='A_1_2', task_family='A', params={'a': '1,2'},
batch_id=batch_id, status='RUNNING')
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list('BATCH_RUNNING', '').keys()))
self.assertEqual({'A_1_2'}, set(self.sch.task_list('RUNNING', '').keys()))
self.sch.add_task(worker=WORKER, task_id='A_1_2', status=DONE)
self.assertEqual({'A_1', 'A_2', 'A_1_2'}, set(self.sch.task_list(DONE, '').keys()))
def test_set_batch_runner_max(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
response = self.sch.get_work(worker=WORKER)
batch_id = response['batch_id']
self.sch.add_task(
worker=WORKER, task_id='A_2', task_family='A', params={'a': '2'},
batch_id=batch_id, status='RUNNING')
self.assertEqual({'A_1'}, set(self.sch.task_list('BATCH_RUNNING', '').keys()))
self.assertEqual({'A_2'}, set(self.sch.task_list('RUNNING', '').keys()))
self.sch.add_task(worker=WORKER, task_id='A_2', status=DONE)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(DONE, '').keys()))
def _start_simple_batch(self, use_max=False, mark_running=True):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
response = self.sch.get_work(worker=WORKER)
if mark_running:
batch_id = response['batch_id']
task_id, params = ('A_2', {'a': '2'}) if use_max else ('A_1_2', {'a': '1,2'})
self.sch.add_task(
worker=WORKER, task_id=task_id, task_family='A', params=params, batch_id=batch_id,
status='RUNNING')
return batch_id, task_id, params
def test_set_batch_runner_retry(self):
batch_id, task_id, params = self._start_simple_batch()
self.sch.add_task(
worker=WORKER, task_id=task_id, task_family='A', params=params, batch_id=batch_id,
status='RUNNING'
)
self.assertEqual({task_id}, set(self.sch.task_list('RUNNING', '').keys()))
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_set_batch_runner_multiple_retries(self):
batch_id, task_id, params = self._start_simple_batch()
for _ in range(3):
self.sch.add_task(
worker=WORKER, task_id=task_id, task_family='A', params=params, batch_id=batch_id,
status='RUNNING'
)
self.assertEqual({task_id}, set(self.sch.task_list('RUNNING', '').keys()))
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_batch_fail(self):
self._start_simple_batch()
self.sch.add_task(worker=WORKER, task_id='A_1_2', status=FAILED, expl='bad failure')
task_ids = {'A_1', 'A_2'}
self.assertEqual(task_ids, set(self.sch.task_list(FAILED, '').keys()))
for task_id in task_ids:
expl = self.sch.fetch_error(task_id)['error']
self.assertEqual('bad failure', expl)
def test_batch_fail_max(self):
self._start_simple_batch(use_max=True)
self.sch.add_task(worker=WORKER, task_id='A_2', status=FAILED, expl='bad max failure')
task_ids = {'A_1', 'A_2'}
self.assertEqual(task_ids, set(self.sch.task_list(FAILED, '').keys()))
for task_id in task_ids:
response = self.sch.fetch_error(task_id)
self.assertEqual('bad max failure', response['error'])
def test_batch_fail_from_dead_worker(self):
self.setTime(1)
self._start_simple_batch()
self.setTime(601)
self.sch.prune()
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(FAILED, '').keys()))
def test_batch_fail_max_from_dead_worker(self):
self.setTime(1)
self._start_simple_batch(use_max=True)
self.setTime(601)
self.sch.prune()
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(FAILED, '').keys()))
def test_batch_fail_from_dead_worker_without_running(self):
self.setTime(1)
self._start_simple_batch(mark_running=False)
self.setTime(601)
self.sch.prune()
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(FAILED, '').keys()))
def test_batch_update_status(self):
self._start_simple_batch()
self.sch.set_task_status_message('A_1_2', 'test message')
for task_id in ('A_1', 'A_2', 'A_1_2'):
self.assertEqual('test message', self.sch.get_task_status_message(task_id)['statusMessage'])
def test_batch_update_progress(self):
self._start_simple_batch()
self.sch.set_task_progress_percentage('A_1_2', 30)
for task_id in ('A_1', 'A_2', 'A_1_2'):
self.assertEqual(30, self.sch.get_task_progress_percentage(task_id)['progressPercentage'])
def test_batch_tracking_url(self):
self._start_simple_batch()
self.sch.add_task(worker=WORKER, task_id='A_1_2', tracking_url='http://test.tracking.url/')
tasks = self.sch.task_list('', '')
for task_id in ('A_1', 'A_2', 'A_1_2'):
self.assertEqual('http://test.tracking.url/', tasks[task_id]['tracking_url'])
def test_finish_batch(self):
self._start_simple_batch()
self.sch.add_task(worker=WORKER, task_id='A_1_2', status=DONE)
self.assertEqual({'A_1', 'A_2', 'A_1_2'}, set(self.sch.task_list(DONE, '').keys()))
def test_reschedule_max_batch(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(
worker=WORKER, task_id='A_1', family='A', params={'a': '1'}, batchable=True)
self.sch.add_task(
worker=WORKER, task_id='A_2', family='A', params={'a': '2'}, batchable=True)
response = self.sch.get_work(worker=WORKER)
batch_id = response['batch_id']
self.sch.add_task(
worker=WORKER, task_id='A_2', task_family='A', params={'a': '2'}, batch_id=batch_id,
status='RUNNING')
self.sch.add_task(worker=WORKER, task_id='A_2', status=DONE)
self.sch.add_task(
worker=WORKER, task_id='A_2', task_family='A', params={'a': '2'}, batchable=True)
self.assertEqual({'A_2'}, set(self.sch.task_list(PENDING, '').keys()))
self.assertEqual({'A_1'}, set(self.sch.task_list(DONE, '').keys()))
def test_resend_batch_on_get_work_retry(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
response = self.sch.get_work(worker=WORKER)
response2 = self.sch.get_work(worker=WORKER, current_tasks=())
self.assertEqual(response['task_id'], response2['task_id'])
self.assertEqual(response['task_family'], response2.get('task_family'))
self.assertEqual(response['task_params'], response2.get('task_params'))
def test_resend_batch_runner_on_get_work_retry(self):
self._start_simple_batch()
get_work = self.sch.get_work(worker=WORKER, current_tasks=())
self.assertEqual('A_1_2', get_work['task_id'])
def test_resend_max_batch_runner_on_get_work_retry(self):
self._start_simple_batch(use_max=True)
get_work = self.sch.get_work(worker=WORKER, current_tasks=())
self.assertEqual('A_2', get_work['task_id'])
def test_do_not_resend_batch_runner_on_get_work(self):
self._start_simple_batch()
get_work = self.sch.get_work(worker=WORKER, current_tasks=('A_1_2',))
self.assertIsNone(get_work['task_id'])
def test_do_not_resend_max_batch_runner_on_get_work(self):
self._start_simple_batch(use_max=True)
get_work = self.sch.get_work(worker=WORKER, current_tasks=('A_2',))
self.assertIsNone(get_work['task_id'])
def test_rescheduled_batch_running_tasks_stay_batch_running_before_runner(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
self.sch.get_work(worker=WORKER)
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_rescheduled_batch_running_tasks_stay_batch_running_after_runner(self):
self._start_simple_batch()
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_disabled_batch_running_tasks_stay_batch_running_before_runner(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
self.sch.get_work(worker=WORKER)
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True, status=DISABLED)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True, status=DISABLED)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_get_work_returns_batch_task_id_list(self):
self.sch.add_task_batcher(worker=WORKER, task_family='A', batched_args=['a'])
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True)
response = self.sch.get_work(worker=WORKER)
self.assertEqual({'A_1', 'A_2'}, set(response['batch_task_ids']))
def test_disabled_batch_running_tasks_stay_batch_running_after_runner(self):
self._start_simple_batch()
self.sch.add_task(worker=WORKER, task_id='A_1', family='A', params={'a': '1'},
batchable=True, status=DISABLED)
self.sch.add_task(worker=WORKER, task_id='A_2', family='A', params={'a': '2'},
batchable=True, status=DISABLED)
self.assertEqual({'A_1', 'A_2'}, set(self.sch.task_list(BATCH_RUNNING, '').keys()))
def test_do_not_overwrite_tracking_url_while_running(self):
self.sch.add_task(task_id='A', worker='X', status='RUNNING', tracking_url='trackme')
self.assertEqual('trackme', self.sch.task_list('RUNNING', '')['A']['tracking_url'])
# not wiped out by another working scheduling as pending
self.sch.add_task(task_id='A', worker='Y', status='PENDING')
self.assertEqual('trackme', self.sch.task_list('RUNNING', '')['A']['tracking_url'])
def test_do_update_tracking_url_while_running(self):
self.sch.add_task(task_id='A', worker='X', status='RUNNING', tracking_url='trackme')
self.assertEqual('trackme', self.sch.task_list('RUNNING', '')['A']['tracking_url'])
self.sch.add_task(task_id='A', worker='X', status='RUNNING', tracking_url='stage_2')
self.assertEqual('stage_2', self.sch.task_list('RUNNING', '')['A']['tracking_url'])
def test_keep_tracking_url_on_done_and_fail(self):
for status in ('DONE', 'FAILED'):
self.sch.add_task(task_id='A', worker='X', status='RUNNING', tracking_url='trackme')
self.assertEqual('trackme', self.sch.task_list('RUNNING', '')['A']['tracking_url'])
self.sch.add_task(task_id='A', worker='X', status=status)
self.assertEqual('trackme', self.sch.task_list(status, '')['A']['tracking_url'])
def test_drop_tracking_url_when_rescheduled_while_not_running(self):
for status in ('DONE', 'FAILED', 'PENDING'):
self.sch.add_task(task_id='A', worker='X', status=status, tracking_url='trackme')
self.assertEqual('trackme', self.sch.task_list(status, '')['A']['tracking_url'])
self.sch.add_task(task_id='A', worker='Y', status='PENDING')
self.assertIsNone(self.sch.task_list('PENDING', '')['A']['tracking_url'])
def test_reset_tracking_url_on_new_run(self):
self.sch.add_task(task_id='A', worker='X', status='PENDING', tracking_url='trackme')
self.assertEqual('trackme', self.sch.task_list('PENDING', '')['A']['tracking_url'])
self.sch.add_task(task_id='A', worker='Y', status='RUNNING')
self.assertIsNone(self.sch.task_list('RUNNING', '')['A']['tracking_url'])
def test_remove_dep(self):
# X schedules A -> B, A is broken
# Y schedules C -> B: this should remove A as a dep of B
self.sch.add_task(task_id='A', worker='X', runnable=False)
self.sch.add_task(task_id='B', deps=('A',), worker='X')
# X can't build anything
self.assertEqual(self.sch.get_work(worker='X')['task_id'], None)
self.sch.add_task(task_id='B', deps=('C',), worker='Y') # should reset dependencies for A
self.sch.add_task(task_id='C', worker='Y', status=DONE)
self.assertEqual(self.sch.get_work(worker='Y')['task_id'], 'B')
def test_start_time(self):
self.setTime(100)
self.sch.add_task(worker=WORKER, task_id='A')
self.setTime(200)
self.sch.add_task(worker=WORKER, task_id='A')
self.sch.add_task(worker=WORKER, task_id='A', status=DONE)
self.assertEqual(100, self.sch.task_list(DONE, '')['A']['start_time'])
def test_last_updated_does_not_change_with_same_status_update(self):
for t, status in ((100, PENDING), (300, DONE), (500, DISABLED)):
self.setTime(t)
self.sch.add_task(worker=WORKER, task_id='A', status=status)
self.assertEqual(t, self.sch.task_list(status, '')['A']['last_updated'])
self.setTime(t + 100)
self.sch.add_task(worker=WORKER, task_id='A', status=status)
self.assertEqual(t, self.sch.task_list(status, '')['A']['last_updated'])
def test_last_updated_shows_running_start(self):
self.setTime(100)
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.assertEqual(100, self.sch.task_list(PENDING, '')['A']['last_updated'])
self.setTime(200)
self.assertEqual('A', self.sch.get_work(worker=WORKER)['task_id'])
self.assertEqual(200, self.sch.task_list('RUNNING', '')['A']['last_updated'])
self.setTime(300)
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.assertEqual(200, self.sch.task_list('RUNNING', '')['A']['last_updated'])
def test_last_updated_with_failure_and_recovery(self):
self.setTime(100)
self.sch.add_task(worker=WORKER, task_id='A')
self.assertEqual('A', self.sch.get_work(worker=WORKER)['task_id'])
self.setTime(200)
self.sch.add_task(worker=WORKER, task_id='A', status=FAILED)
self.assertEqual(200, self.sch.task_list(FAILED, '')['A']['last_updated'])
self.setTime(1000)
self.sch.prune()
self.assertEqual(1000, self.sch.task_list(PENDING, '')['A']['last_updated'])
def test_timeout(self):
# A bug that was earlier present when restarting the same flow
self.setTime(0)
self.sch.add_task(task_id='A', worker='X')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'A')
self.setTime(10000)
self.sch.add_task(task_id='A', worker='Y') # Will timeout X but not schedule A for removal
for i in range(2000):
self.setTime(10000 + i)
self.sch.ping(worker='Y')
self.sch.add_task(task_id='A', status=DONE, worker='Y') # This used to raise an exception since A was removed
def test_disallowed_state_changes(self):
# Test that we can not schedule an already running task
t = 'A'
self.sch.add_task(task_id=t, worker='X')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], t)
self.sch.add_task(task_id=t, worker='Y')
self.assertEqual(self.sch.get_work(worker='Y')['task_id'], None)
def test_two_worker_info(self):
# Make sure the scheduler returns info that some other worker is running task A
self.sch.add_task(worker='X', task_id='A')
self.sch.add_task(worker='Y', task_id='A')
self.assertEqual(self.sch.get_work(worker='X')['task_id'], 'A')
r = self.sch.get_work(worker='Y')
self.assertEqual(r['task_id'], None) # Worker Y is pending on A to be done
s = r['running_tasks'][0]
self.assertEqual(s['task_id'], 'A')
self.assertEqual(s['worker'], 'X')
def test_assistant_get_work(self):
self.sch.add_task(worker='X', task_id='A')
self.sch.add_worker('Y', [])
self.assertEqual(self.sch.get_work(worker='Y', assistant=True)['task_id'], 'A')
# check that the scheduler recognizes tasks as running
running_tasks = self.sch.task_list('RUNNING', '')
self.assertEqual(len(running_tasks), 1)
self.assertEqual(list(running_tasks.keys()), ['A'])
self.assertEqual(running_tasks['A']['worker_running'], 'Y')
def test_assistant_get_work_external_task(self):
self.sch.add_task(worker='X', task_id='A', runnable=False)
self.assertTrue(self.sch.get_work(worker='Y', assistant=True)['task_id'] is None)
def test_task_fails_when_assistant_dies(self):
self.setTime(0)
self.sch.add_task(worker='X', task_id='A')
self.sch.add_worker('Y', [])
self.assertEqual(self.sch.get_work(worker='Y', assistant=True)['task_id'], 'A')
self.assertEqual(list(self.sch.task_list('RUNNING', '').keys()), ['A'])
# Y dies for 50 seconds, X stays alive
self.setTime(50)
self.sch.ping(worker='X')
self.assertEqual(list(self.sch.task_list('FAILED', '').keys()), ['A'])
def test_prune_with_live_assistant(self):
self.setTime(0)
self.sch.add_task(worker='X', task_id='A')
self.sch.get_work(worker='Y', assistant=True)
self.sch.add_task(worker='Y', task_id='A', status=DONE, assistant=True)
# worker X stops communicating, A should be marked for removal
self.setTime(600)
self.sch.ping(worker='Y')
self.sch.prune()
# A will now be pruned
self.setTime(2000)
self.sch.prune()
self.assertFalse(list(self.sch.task_list('', '')))
def test_re_enable_failed_task_assistant(self):
self.setTime(0)
self.sch.add_worker('X', [('assistant', True)])
self.sch.add_task(worker='X', task_id='A', status=FAILED, assistant=True)
# should be failed now
self.assertEqual(FAILED, self.sch.task_list('', '')['A']['status'])
# resets to PENDING after 100 seconds
self.setTime(101)
self.sch.ping(worker='X') # worker still alive
self.assertEqual('PENDING', self.sch.task_list('', '')['A']['status'])
def test_assistant_doesnt_keep_alive_task(self):
self.setTime(0)
self.sch.add_task(worker='X', task_id='A')
self.assertEqual('A', self.sch.get_work(worker='X')['task_id'])
self.sch.add_worker('Y', {'assistant': True})
remove_delay = self.get_scheduler_config()['remove_delay'] + 1.0
self.setTime(remove_delay)
self.sch.ping(worker='Y')
self.sch.prune()
self.assertEqual(['A'], list(self.sch.task_list(status='FAILED', upstream_status='').keys()))
self.assertEqual(['A'], list(self.sch.task_list(status='', upstream_status='').keys()))
self.setTime(2*remove_delay)
self.sch.ping(worker='Y')
self.sch.prune()
self.assertEqual([], list(self.sch.task_list(status='', upstream_status='').keys()))
def test_assistant_request_runnable_task(self):
"""
Test that an assistant gets a task despite it havent registered for it
"""
self.setTime(0)
self.sch.add_task(worker='X', task_id='A', runnable=True)
self.setTime(600)
self.sch.prune()
self.assertEqual('A', self.sch.get_work(worker='Y', assistant=True)['task_id'])
def test_assistant_request_external_task(self):
self.sch.add_task(worker='X', task_id='A', runnable=False)
self.assertIsNone(self.sch.get_work(worker='Y', assistant=True)['task_id'])
def _test_prune_done_tasks(self, expected=None):
self.setTime(0)
self.sch.add_task(worker=WORKER, task_id='A', status=DONE)
self.sch.add_task(worker=WORKER, task_id='B', deps=['A'], status=DONE)
self.sch.add_task(worker=WORKER, task_id='C', deps=['B'])
self.setTime(600)
self.sch.ping(worker='MAYBE_ASSITANT')
self.sch.prune()
self.setTime(2000)
self.sch.ping(worker='MAYBE_ASSITANT')
self.sch.prune()
self.assertEqual(set(expected), set(self.sch.task_list('', '').keys()))
def test_prune_done_tasks_not_assistant(self, expected=None):
# Here, MAYBE_ASSISTANT isnt an assistant
self._test_prune_done_tasks(expected=[])
def test_keep_tasks_for_assistant(self):
self.sch.get_work(worker='MAYBE_ASSITANT', assistant=True) # tell the scheduler this is an assistant
self._test_prune_done_tasks([])
def test_keep_scheduler_disabled_tasks_for_assistant(self):
self.sch.get_work(worker='MAYBE_ASSITANT', assistant=True) # tell the scheduler this is an assistant
# create a scheduler disabled task and a worker disabled task
for i in range(10):
self.sch.add_task(worker=WORKER, task_id='D', status=FAILED)
self.sch.add_task(worker=WORKER, task_id='E', status=DISABLED)
# scheduler prunes the worker disabled task
self.assertEqual(set(['D', 'E']), set(self.sch.task_list(DISABLED, '')))
self._test_prune_done_tasks([])
def test_keep_failed_tasks_for_assistant(self):
self.sch.get_work(worker='MAYBE_ASSITANT', assistant=True) # tell the scheduler this is an assistant
self.sch.add_task(worker=WORKER, task_id='D', status=FAILED, deps=['A'])
self._test_prune_done_tasks([])
def test_count_pending(self):
for num_tasks in range(1, 20):
self.sch.add_task(worker=WORKER, task_id=str(num_tasks), status=PENDING)
expected = {
'n_pending_tasks': num_tasks,
'n_unique_pending': num_tasks,
'n_pending_last_scheduled': num_tasks,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_include_failures(self):
for num_tasks in range(1, 20):
# must be scheduled as pending before failed to ensure WORKER is in the task's workers
self.sch.add_task(worker=WORKER, task_id=str(num_tasks), status=PENDING)
self.sch.add_task(worker=WORKER, task_id=str(num_tasks), status=FAILED)
expected = {
'n_pending_tasks': num_tasks,
'n_unique_pending': num_tasks,
'n_pending_last_scheduled': num_tasks,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_do_not_include_done_or_disabled(self):
for num_tasks in range(1, 20, 2):
self.sch.add_task(worker=WORKER, task_id=str(num_tasks), status=PENDING)
self.sch.add_task(worker=WORKER, task_id=str(num_tasks + 1), status=PENDING)
self.sch.add_task(worker=WORKER, task_id=str(num_tasks), status=DONE)
self.sch.add_task(worker=WORKER, task_id=str(num_tasks + 1), status=DISABLED)
expected = {
'n_pending_tasks': 0,
'n_unique_pending': 0,
'n_pending_last_scheduled': 0,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_on_disabled_worker(self):
self.sch.add_task(worker=WORKER, task_id='A')
self.sch.add_task(worker='other', task_id='B') # needed to trigger right get_tasks code path
self.assertEqual(1, self.sch.count_pending(WORKER)['n_pending_tasks'])
self.sch.disable_worker(WORKER)
self.assertEqual(0, self.sch.count_pending(WORKER)['n_pending_tasks'])
def test_count_pending_do_not_count_upstream_disabled(self):
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='B', status=DISABLED)
self.sch.add_task(worker=WORKER, task_id='C', status=PENDING, deps=['A', 'B'])
expected = {
'n_pending_tasks': 1,
'n_unique_pending': 1,
'n_pending_last_scheduled': 1,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_count_upstream_failed(self):
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='A', status=FAILED)
self.sch.add_task(worker=WORKER, task_id='B', status=PENDING, deps=['A'])
expected = {
'n_pending_tasks': 2,
'n_unique_pending': 2,
'n_pending_last_scheduled': 2,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_missing_worker(self):
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
expected = {
'n_pending_tasks': 0,
'n_unique_pending': 0,
'n_pending_last_scheduled': 0,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending('other_worker'))
def test_count_pending_uniques(self):
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='B', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='C', status=PENDING)
self.sch.add_task(worker='other_worker', task_id='A', status=PENDING)
expected = {
'n_pending_tasks': 3,
'n_unique_pending': 2,
'n_pending_last_scheduled': 2,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
def test_count_pending_last_scheduled(self):
self.sch.add_task(worker=WORKER, task_id='A', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='B', status=PENDING)
self.sch.add_task(worker=WORKER, task_id='C', status=PENDING)
self.sch.add_task(worker='other_worker', task_id='A', status=PENDING)
self.sch.add_task(worker='other_worker', task_id='B', status=PENDING)
self.sch.add_task(worker='other_worker', task_id='C', status=PENDING)
expected = {
'n_pending_tasks': 3,
'n_unique_pending': 0,
'n_pending_last_scheduled': 0,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected, self.sch.count_pending(WORKER))
expected_other_worker = {
'n_pending_tasks': 3,
'n_unique_pending': 0,
'n_pending_last_scheduled': 3,
'running_tasks': [],
'worker_state': 'active',
}
self.assertEqual(expected_other_worker, self.sch.count_pending('other_worker'))