/usr/lib/python2.7/dist-packages/celery/tests/worker/test_control.py is in python-celery 3.1.20-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import sys
import socket
from collections import defaultdict
from datetime import datetime, timedelta
from kombu import pidbox
from celery.datastructures import AttributeDict
from celery.five import Queue as FastQueue
from celery.utils import uuid
from celery.utils.timer2 import Timer
from celery.worker import WorkController as _WC
from celery.worker import consumer
from celery.worker import control
from celery.worker import state as worker_state
from celery.worker.job import Request
from celery.worker.state import revoked
from celery.worker.control import Panel
from celery.worker.pidbox import Pidbox, gPidbox
from celery.tests.case import AppCase, Mock, call, patch
hostname = socket.gethostname()
class WorkController(object):
autoscaler = None
def stats(self):
return {'total': worker_state.total_count}
class Consumer(consumer.Consumer):
def __init__(self, app):
self.app = app
self.buffer = FastQueue()
self.handle_task = self.buffer.put
self.timer = Timer()
self.event_dispatcher = Mock()
self.controller = WorkController()
self.task_consumer = Mock()
self.prefetch_multiplier = 1
self.initial_prefetch_count = 1
from celery.concurrency.base import BasePool
self.pool = BasePool(10)
self.task_buckets = defaultdict(lambda: None)
class test_Pidbox(AppCase):
def test_shutdown(self):
with patch('celery.worker.pidbox.ignore_errors') as eig:
parent = Mock()
pbox = Pidbox(parent)
pbox._close_channel = Mock()
self.assertIs(pbox.c, parent)
pconsumer = pbox.consumer = Mock()
cancel = pconsumer.cancel
pbox.shutdown(parent)
eig.assert_called_with(parent, cancel)
pbox._close_channel.assert_called_with(parent)
class test_Pidbox_green(AppCase):
def test_stop(self):
parent = Mock()
g = gPidbox(parent)
stopped = g._node_stopped = Mock()
shutdown = g._node_shutdown = Mock()
close_chan = g._close_channel = Mock()
g.stop(parent)
shutdown.set.assert_called_with()
stopped.wait.assert_called_with()
close_chan.assert_called_with(parent)
self.assertIsNone(g._node_stopped)
self.assertIsNone(g._node_shutdown)
close_chan.reset()
g.stop(parent)
close_chan.assert_called_with(parent)
def test_resets(self):
parent = Mock()
g = gPidbox(parent)
g._resets = 100
g.reset()
self.assertEqual(g._resets, 101)
def test_loop(self):
parent = Mock()
conn = parent.connect.return_value = self.app.connection()
drain = conn.drain_events = Mock()
g = gPidbox(parent)
parent.connection = Mock()
do_reset = g._do_reset = Mock()
call_count = [0]
def se(*args, **kwargs):
if call_count[0] > 2:
g._node_shutdown.set()
g.reset()
call_count[0] += 1
drain.side_effect = se
g.loop(parent)
self.assertEqual(do_reset.call_count, 4)
class test_ControlPanel(AppCase):
def setup(self):
self.panel = self.create_panel(consumer=Consumer(self.app))
@self.app.task(name='c.unittest.mytask', rate_limit=200, shared=False)
def mytask():
pass
self.mytask = mytask
def create_state(self, **kwargs):
kwargs.setdefault('app', self.app)
kwargs.setdefault('hostname', hostname)
return AttributeDict(kwargs)
def create_panel(self, **kwargs):
return self.app.control.mailbox.Node(hostname=hostname,
state=self.create_state(**kwargs),
handlers=Panel.data)
def test_enable_events(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
evd = consumer.event_dispatcher
evd.groups = set()
panel.handle('enable_events')
self.assertFalse(evd.groups)
evd.groups = set(['worker'])
panel.handle('enable_events')
self.assertIn('task', evd.groups)
evd.groups = set(['task'])
self.assertIn('already enabled', panel.handle('enable_events')['ok'])
def test_disable_events(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
evd = consumer.event_dispatcher
evd.enabled = True
evd.groups = set(['task'])
panel.handle('disable_events')
self.assertNotIn('task', evd.groups)
self.assertIn('already disabled', panel.handle('disable_events')['ok'])
def test_clock(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
panel.state.app.clock.value = 313
x = panel.handle('clock')
self.assertEqual(x['clock'], 313)
def test_hello(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
panel.state.app.clock.value = 313
worker_state.revoked.add('revoked1')
try:
x = panel.handle('hello', {'from_node': 'george@vandelay.com'})
self.assertIn('revoked1', x['revoked'])
self.assertEqual(x['clock'], 314) # incremented
finally:
worker_state.revoked.discard('revoked1')
def test_conf(self):
return
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
self.app.conf.SOME_KEY6 = 'hello world'
x = panel.handle('dump_conf')
self.assertIn('SOME_KEY6', x)
def test_election(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
consumer.gossip = Mock()
panel.handle(
'election', {'id': 'id', 'topic': 'topic', 'action': 'action'},
)
consumer.gossip.election.assert_called_with('id', 'topic', 'action')
def test_heartbeat(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
consumer.event_dispatcher.enabled = True
panel.handle('heartbeat')
self.assertIn(('worker-heartbeat', ),
consumer.event_dispatcher.send.call_args)
def test_time_limit(self):
panel = self.create_panel(consumer=Mock())
r = panel.handle('time_limit', arguments=dict(
task_name=self.mytask.name, hard=30, soft=10))
self.assertEqual(
(self.mytask.time_limit, self.mytask.soft_time_limit),
(30, 10),
)
self.assertIn('ok', r)
r = panel.handle('time_limit', arguments=dict(
task_name=self.mytask.name, hard=None, soft=None))
self.assertEqual(
(self.mytask.time_limit, self.mytask.soft_time_limit),
(None, None),
)
self.assertIn('ok', r)
r = panel.handle('time_limit', arguments=dict(
task_name='248e8afya9s8dh921eh928', hard=30))
self.assertIn('error', r)
def test_active_queues(self):
import kombu
x = kombu.Consumer(self.app.connection(),
[kombu.Queue('foo', kombu.Exchange('foo'), 'foo'),
kombu.Queue('bar', kombu.Exchange('bar'), 'bar')],
auto_declare=False)
consumer = Mock()
consumer.task_consumer = x
panel = self.create_panel(consumer=consumer)
r = panel.handle('active_queues')
self.assertListEqual(list(sorted(q['name'] for q in r)),
['bar', 'foo'])
def test_dump_tasks(self):
info = '\n'.join(self.panel.handle('dump_tasks'))
self.assertIn('mytask', info)
self.assertIn('rate_limit=200', info)
def test_stats(self):
prev_count, worker_state.total_count = worker_state.total_count, 100
try:
self.assertDictContainsSubset({'total': 100},
self.panel.handle('stats'))
finally:
worker_state.total_count = prev_count
def test_report(self):
self.panel.handle('report')
def test_active(self):
r = Request({
'task': self.mytask.name,
'id': 'do re mi',
'args': (),
'kwargs': {},
}, app=self.app)
worker_state.active_requests.add(r)
try:
self.assertTrue(self.panel.handle('dump_active'))
finally:
worker_state.active_requests.discard(r)
def test_pool_grow(self):
class MockPool(object):
def __init__(self, size=1):
self.size = size
def grow(self, n=1):
self.size += n
def shrink(self, n=1):
self.size -= n
@property
def num_processes(self):
return self.size
consumer = Consumer(self.app)
consumer.prefetch_multiplier = 8
consumer.qos = Mock(name='qos')
consumer.pool = MockPool(1)
panel = self.create_panel(consumer=consumer)
panel.handle('pool_grow')
self.assertEqual(consumer.pool.size, 2)
consumer.qos.increment_eventually.assert_called_with(8)
self.assertEqual(consumer.initial_prefetch_count, 16)
panel.handle('pool_shrink')
self.assertEqual(consumer.pool.size, 1)
consumer.qos.decrement_eventually.assert_called_with(8)
self.assertEqual(consumer.initial_prefetch_count, 8)
panel.state.consumer = Mock()
panel.state.consumer.controller = Mock()
sc = panel.state.consumer.controller.autoscaler = Mock()
panel.handle('pool_grow')
self.assertTrue(sc.force_scale_up.called)
panel.handle('pool_shrink')
self.assertTrue(sc.force_scale_down.called)
def test_add__cancel_consumer(self):
class MockConsumer(object):
queues = []
cancelled = []
consuming = False
def add_queue(self, queue):
self.queues.append(queue.name)
def consume(self):
self.consuming = True
def cancel_by_queue(self, queue):
self.cancelled.append(queue)
def consuming_from(self, queue):
return queue in self.queues
consumer = Consumer(self.app)
consumer.task_consumer = MockConsumer()
panel = self.create_panel(consumer=consumer)
panel.handle('add_consumer', {'queue': 'MyQueue'})
self.assertIn('MyQueue', consumer.task_consumer.queues)
self.assertTrue(consumer.task_consumer.consuming)
panel.handle('add_consumer', {'queue': 'MyQueue'})
panel.handle('cancel_consumer', {'queue': 'MyQueue'})
self.assertIn('MyQueue', consumer.task_consumer.cancelled)
def test_revoked(self):
worker_state.revoked.clear()
worker_state.revoked.add('a1')
worker_state.revoked.add('a2')
try:
self.assertEqual(sorted(self.panel.handle('dump_revoked')),
['a1', 'a2'])
finally:
worker_state.revoked.clear()
def test_dump_schedule(self):
consumer = Consumer(self.app)
panel = self.create_panel(consumer=consumer)
self.assertFalse(panel.handle('dump_schedule'))
r = Request({
'task': self.mytask.name,
'id': 'CAFEBABE',
'args': (),
'kwargs': {},
}, app=self.app)
consumer.timer.schedule.enter_at(
consumer.timer.Entry(lambda x: x, (r, )),
datetime.now() + timedelta(seconds=10))
consumer.timer.schedule.enter_at(
consumer.timer.Entry(lambda x: x, (object(), )),
datetime.now() + timedelta(seconds=10))
self.assertTrue(panel.handle('dump_schedule'))
def test_dump_reserved(self):
consumer = Consumer(self.app)
worker_state.reserved_requests.add(Request({
'task': self.mytask.name,
'id': uuid(),
'args': (2, 2),
'kwargs': {},
}, app=self.app))
try:
panel = self.create_panel(consumer=consumer)
response = panel.handle('dump_reserved', {'safe': True})
self.assertDictContainsSubset(
{'name': self.mytask.name,
'args': (2, 2),
'kwargs': {},
'hostname': socket.gethostname()},
response[0],
)
worker_state.reserved_requests.clear()
self.assertFalse(panel.handle('dump_reserved'))
finally:
worker_state.reserved_requests.clear()
def test_rate_limit_invalid_rate_limit_string(self):
e = self.panel.handle('rate_limit', arguments=dict(
task_name='tasks.add', rate_limit='x1240301#%!'))
self.assertIn('Invalid rate limit string', e.get('error'))
def test_rate_limit(self):
class xConsumer(object):
reset = False
def reset_rate_limits(self):
self.reset = True
consumer = xConsumer()
panel = self.create_panel(app=self.app, consumer=consumer)
task = self.app.tasks[self.mytask.name]
panel.handle('rate_limit', arguments=dict(task_name=task.name,
rate_limit='100/m'))
self.assertEqual(task.rate_limit, '100/m')
self.assertTrue(consumer.reset)
consumer.reset = False
panel.handle('rate_limit', arguments=dict(task_name=task.name,
rate_limit=0))
self.assertEqual(task.rate_limit, 0)
self.assertTrue(consumer.reset)
def test_rate_limit_nonexistant_task(self):
self.panel.handle('rate_limit', arguments={
'task_name': 'xxxx.does.not.exist',
'rate_limit': '1000/s'})
def test_unexposed_command(self):
with self.assertRaises(KeyError):
self.panel.handle('foo', arguments={})
def test_revoke_with_name(self):
tid = uuid()
m = {'method': 'revoke',
'destination': hostname,
'arguments': {'task_id': tid,
'task_name': self.mytask.name}}
self.panel.handle_message(m, None)
self.assertIn(tid, revoked)
def test_revoke_with_name_not_in_registry(self):
tid = uuid()
m = {'method': 'revoke',
'destination': hostname,
'arguments': {'task_id': tid,
'task_name': 'xxxxxxxxx33333333388888'}}
self.panel.handle_message(m, None)
self.assertIn(tid, revoked)
def test_revoke(self):
tid = uuid()
m = {'method': 'revoke',
'destination': hostname,
'arguments': {'task_id': tid}}
self.panel.handle_message(m, None)
self.assertIn(tid, revoked)
m = {'method': 'revoke',
'destination': 'does.not.exist',
'arguments': {'task_id': tid + 'xxx'}}
self.panel.handle_message(m, None)
self.assertNotIn(tid + 'xxx', revoked)
def test_revoke_terminate(self):
request = Mock()
request.id = tid = uuid()
worker_state.reserved_requests.add(request)
try:
r = control.revoke(Mock(), tid, terminate=True)
self.assertIn(tid, revoked)
self.assertTrue(request.terminate.call_count)
self.assertIn('terminate:', r['ok'])
# unknown task id only revokes
r = control.revoke(Mock(), uuid(), terminate=True)
self.assertIn('tasks unknown', r['ok'])
finally:
worker_state.reserved_requests.discard(request)
def test_autoscale(self):
self.panel.state.consumer = Mock()
self.panel.state.consumer.controller = Mock()
sc = self.panel.state.consumer.controller.autoscaler = Mock()
sc.update.return_value = 10, 2
m = {'method': 'autoscale',
'destination': hostname,
'arguments': {'max': '10', 'min': '2'}}
r = self.panel.handle_message(m, None)
self.assertIn('ok', r)
self.panel.state.consumer.controller.autoscaler = None
r = self.panel.handle_message(m, None)
self.assertIn('error', r)
def test_ping(self):
m = {'method': 'ping',
'destination': hostname}
r = self.panel.handle_message(m, None)
self.assertEqual(r, {'ok': 'pong'})
def test_shutdown(self):
m = {'method': 'shutdown',
'destination': hostname}
with self.assertRaises(SystemExit):
self.panel.handle_message(m, None)
def test_panel_reply(self):
replies = []
class _Node(pidbox.Node):
def reply(self, data, exchange, routing_key, **kwargs):
replies.append(data)
panel = _Node(hostname=hostname,
state=self.create_state(consumer=Consumer(self.app)),
handlers=Panel.data,
mailbox=self.app.control.mailbox)
r = panel.dispatch('ping', reply_to={'exchange': 'x',
'routing_key': 'x'})
self.assertEqual(r, {'ok': 'pong'})
self.assertDictEqual(replies[0], {panel.hostname: {'ok': 'pong'}})
def test_pool_restart(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
consumer.controller.pool.restart = Mock()
consumer.reset_rate_limits = Mock(name='reset_rate_limits()')
consumer.update_strategies = Mock(name='update_strategies()')
consumer.event_dispatcher = Mock(name='evd')
panel = self.create_panel(consumer=consumer)
assert panel.state.consumer.controller.consumer is consumer
panel.app = self.app
_import = panel.app.loader.import_from_cwd = Mock()
_reload = Mock()
with self.assertRaises(ValueError):
panel.handle('pool_restart', {'reloader': _reload})
self.app.conf.CELERYD_POOL_RESTARTS = True
panel.handle('pool_restart', {'reloader': _reload})
self.assertTrue(consumer.controller.pool.restart.called)
consumer.reset_rate_limits.assert_called_with()
consumer.update_strategies.assert_called_with()
self.assertFalse(_reload.called)
self.assertFalse(_import.called)
def test_pool_restart_import_modules(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
consumer.controller.pool.restart = Mock()
consumer.reset_rate_limits = Mock(name='reset_rate_limits()')
consumer.update_strategies = Mock(name='update_strategies()')
panel = self.create_panel(consumer=consumer)
panel.app = self.app
assert panel.state.consumer.controller.consumer is consumer
_import = consumer.controller.app.loader.import_from_cwd = Mock()
_reload = Mock()
self.app.conf.CELERYD_POOL_RESTARTS = True
panel.handle('pool_restart', {'modules': ['foo', 'bar'],
'reloader': _reload})
self.assertTrue(consumer.controller.pool.restart.called)
consumer.reset_rate_limits.assert_called_with()
consumer.update_strategies.assert_called_with()
self.assertFalse(_reload.called)
self.assertItemsEqual(
[call('bar'), call('foo')],
_import.call_args_list,
)
def test_pool_restart_reload_modules(self):
consumer = Consumer(self.app)
consumer.controller = _WC(app=self.app)
consumer.controller.consumer = consumer
consumer.controller.pool.restart = Mock()
consumer.reset_rate_limits = Mock(name='reset_rate_limits()')
consumer.update_strategies = Mock(name='update_strategies()')
panel = self.create_panel(consumer=consumer)
panel.app = self.app
_import = panel.app.loader.import_from_cwd = Mock()
_reload = Mock()
self.app.conf.CELERYD_POOL_RESTARTS = True
with patch.dict(sys.modules, {'foo': None}):
panel.handle('pool_restart', {'modules': ['foo'],
'reload': False,
'reloader': _reload})
self.assertTrue(consumer.controller.pool.restart.called)
self.assertFalse(_reload.called)
self.assertFalse(_import.called)
_import.reset_mock()
_reload.reset_mock()
consumer.controller.pool.restart.reset_mock()
panel.handle('pool_restart', {'modules': ['foo'],
'reload': True,
'reloader': _reload})
self.assertTrue(consumer.controller.pool.restart.called)
self.assertTrue(_reload.called)
self.assertFalse(_import.called)
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