def test_batch_done(self):
tp0 = TopicPartition("test-topic", 0)
tp1 = TopicPartition("test-topic", 1)
tp2 = TopicPartition("test-topic", 2)
tp3 = TopicPartition("test-topic", 3)
def mocked_leader_for_partition(tp):
if tp == tp0:
return 0
if tp == tp1:
return 1
if tp == tp2:
return -1
return None
cluster = ClusterMetadata(metadata_max_age_ms=10000)
cluster.leader_for_partition = mock.MagicMock()
cluster.leader_for_partition.side_effect = mocked_leader_for_partition
ma = MessageAccumulator(cluster, 1000, None, 1, self.loop)
fut1 = yield from ma.add_message(
tp2, None, b'msg for tp@2', timeout=2)
fut2 = yield from ma.add_message(
tp3, None, b'msg for tp@3', timeout=2)
yield from ma.add_message(tp1, None, b'0123456789'*70, timeout=2)
with self.assertRaises(KafkaTimeoutError):
yield from ma.add_message(tp1, None, b'0123456789'*70, timeout=2)
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(batches[1][tp1].expired(), True)
with self.assertRaises(LeaderNotAvailableError):
yield from fut1
with self.assertRaises(NotLeaderForPartitionError):
yield from fut2
fut01 = yield from ma.add_message(
tp0, b'key0', b'value#0', timeout=2)
fut02 = yield from ma.add_message(
tp0, b'key1', b'value#1', timeout=2)
fut10 = yield from ma.add_message(
tp1, None, b'0123456789'*70, timeout=2)
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(batches[0][tp0].expired(), False)
self.assertEqual(batches[1][tp1].expired(), False)
batch_data = batches[0][tp0].get_data_buffer()
self.assertEqual(type(batch_data), io.BytesIO)
batches[0][tp0].done(base_offset=10)
class TestException(Exception):
pass
batches[1][tp1].done(exception=TestException())
res = yield from fut01
self.assertEqual(res.topic, "test-topic")
self.assertEqual(res.partition, 0)
self.assertEqual(res.offset, 10)
res = yield from fut02
self.assertEqual(res.topic, "test-topic")
self.assertEqual(res.partition, 0)
self.assertEqual(res.offset, 11)
with self.assertRaises(TestException):
yield from fut10
fut01 = yield from ma.add_message(
tp0, b'key0', b'value#0', timeout=2)
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
batches[0][tp0].done(base_offset=None)
res = yield from fut01
self.assertEqual(res, None)
# cancelling future
fut01 = yield from ma.add_message(
tp0, b'key0', b'value#2', timeout=2)
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
fut01.cancel()
batches[0][tp0].done(base_offset=21) # no error in this case
def test_basic(self):
cluster = ClusterMetadata(metadata_max_age_ms=10000)
ma = MessageAccumulator(cluster, 1000, None, 30, self.loop)
data_waiter = ma.data_waiter()
done, _ = yield from asyncio.wait(
[data_waiter], timeout=0.2, loop=self.loop)
self.assertFalse(bool(done)) # no data in accumulator yet...
tp0 = TopicPartition("test-topic", 0)
tp1 = TopicPartition("test-topic", 1)
yield from ma.add_message(tp0, b'key', b'value', timeout=2)
yield from ma.add_message(tp1, None, b'value without key', timeout=2)
done, _ = yield from asyncio.wait(
[data_waiter], timeout=0.2, loop=self.loop)
self.assertTrue(bool(done))
batches, unknown_leaders_exist = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(batches, {})
self.assertEqual(unknown_leaders_exist, True)
def mocked_leader_for_partition(tp):
if tp == tp0:
return 0
if tp == tp1:
return 1
return -1
cluster.leader_for_partition = mock.MagicMock()
cluster.leader_for_partition.side_effect = mocked_leader_for_partition
batches, unknown_leaders_exist = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(len(batches), 2)
self.assertEqual(unknown_leaders_exist, False)
m_set0 = batches[0].get(tp0)
self.assertEqual(type(m_set0), MessageBatch)
m_set1 = batches[1].get(tp1)
self.assertEqual(type(m_set1), MessageBatch)
self.assertEqual(m_set0.expired(), False)
data_waiter = ensure_future(ma.data_waiter(), loop=self.loop)
done, _ = yield from asyncio.wait(
[data_waiter], timeout=0.2, loop=self.loop)
self.assertFalse(bool(done)) # no data in accumulator again...
# testing batch overflow
tp2 = TopicPartition("test-topic", 2)
yield from ma.add_message(
tp0, None, b'some short message', timeout=2)
yield from ma.add_message(
tp0, None, b'some other short message', timeout=2)
yield from ma.add_message(
tp1, None, b'0123456789' * 70, timeout=2)
yield from ma.add_message(
tp2, None, b'message to unknown leader', timeout=2)
# next we try to add message with len=500,
# as we have buffer_size=1000 coroutine will block until data will be
# drained
add_task = ensure_future(
ma.add_message(tp1, None, b'0123456789' * 50, timeout=2),
loop=self.loop)
done, _ = yield from asyncio.wait(
[add_task], timeout=0.2, loop=self.loop)
self.assertFalse(bool(done))
batches, unknown_leaders_exist = ma.drain_by_nodes(ignore_nodes=[1, 2])
self.assertEqual(unknown_leaders_exist, True)
m_set0 = batches[0].get(tp0)
self.assertEqual(m_set0._builder._relative_offset, 2)
m_set1 = batches[1].get(tp1)
self.assertEqual(m_set1, None)
done, _ = yield from asyncio.wait(
[add_task], timeout=0.1, loop=self.loop)
self.assertFalse(bool(done)) # we stil not drained data for tp1
batches, unknown_leaders_exist = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(unknown_leaders_exist, True)
m_set0 = batches[0].get(tp0)
self.assertEqual(m_set0, None)
m_set1 = batches[1].get(tp1)
self.assertEqual(m_set1._builder._relative_offset, 1)
done, _ = yield from asyncio.wait(
[add_task], timeout=0.2, loop=self.loop)
self.assertTrue(bool(done))
batches, unknown_leaders_exist = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(unknown_leaders_exist, True)
m_set1 = batches[1].get(tp1)
self.assertEqual(m_set1._builder._relative_offset, 1)
def test_batch_pending_batch_list(self):
# In message accumulator we have _pending_batches list, that stores
# batches when those are delivered to node. We must be sure we never
# lose a batch during retries and that we don't produce duplicate batch
# links in the process
tp0 = TopicPartition("test-topic", 0)
def mocked_leader_for_partition(tp):
if tp == tp0:
return 0
return None
cluster = ClusterMetadata(metadata_max_age_ms=10000)
cluster.leader_for_partition = mock.MagicMock()
cluster.leader_for_partition.side_effect = mocked_leader_for_partition
ma = MessageAccumulator(cluster, 1000, 0, 1, loop=self.loop)
fut1 = yield from ma.add_message(
tp0, b'key', b'value', timeout=2)
# Drain and Reenqueu
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
batch = batches[0][tp0]
self.assertIn(batch, ma._pending_batches)
self.assertFalse(ma._batches)
self.assertFalse(fut1.done())
ma.reenqueue(batch)
self.assertEqual(batch.retry_count, 1)
self.assertFalse(ma._pending_batches)
self.assertIn(batch, ma._batches[tp0])
self.assertFalse(fut1.done())
# Drain and Reenqueu again. We check for repeated call
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(batches[0][tp0], batch)
self.assertEqual(batch.retry_count, 2)
self.assertIn(batch, ma._pending_batches)
self.assertFalse(ma._batches)
self.assertFalse(fut1.done())
ma.reenqueue(batch)
self.assertEqual(batch.retry_count, 2)
self.assertFalse(ma._pending_batches)
self.assertIn(batch, ma._batches[tp0])
self.assertFalse(fut1.done())
# Drain and mark as done. Check that no link to batch remained
batches, _ = ma.drain_by_nodes(ignore_nodes=[])
self.assertEqual(batches[0][tp0], batch)
self.assertEqual(batch.retry_count, 3)
self.assertIn(batch, ma._pending_batches)
self.assertFalse(ma._batches)
self.assertFalse(fut1.done())
if hasattr(batch.future, "_callbacks"): # Vanilla asyncio
self.assertEqual(len(batch.future._callbacks), 1)
batch.done_noack()
yield from asyncio.sleep(0.01, loop=self.loop)
self.assertEqual(batch.retry_count, 3)
self.assertFalse(ma._pending_batches)
self.assertFalse(ma._batches)