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merge bitcoin#21008: fix zmq test flakiness, improve speed

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Kittywhiskers Van Gogh 2021-01-23 22:19:15 +01:00
parent 5e87efd04b
commit 7b0c725c59
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1 changed files with 54 additions and 22 deletions
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76
test/functional/interface_zmq.py
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@ -33,28 +33,31 @@ def dashhash_reversed(byte_str):
class ZMQSubscriber:
def __init__(self, socket, topic):
self.sequence = 0
self.sequence = None # no sequence number received yet
self.socket = socket
self.topic = topic
self.socket.setsockopt(zmq.SUBSCRIBE, self.topic)
def receive(self):
# Receive message from publisher and verify that topic and sequence match
def _receive_from_publisher_and_check(self):
topic, body, seq = self.socket.recv_multipart()
# Topic should match the subscriber topic.
assert_equal(topic, self.topic)
# Sequence should be incremental.
assert_equal(struct.unpack('<I', seq)[-1], self.sequence)
received_seq = struct.unpack('<I', seq)[-1]
if self.sequence is None:
self.sequence = received_seq
else:
assert_equal(received_seq, self.sequence)
self.sequence += 1
return body
def receive(self):
return self._receive_from_publisher_and_check()
def receive_sequence(self):
topic, body, seq = self.socket.recv_multipart()
# Topic should match the subscriber topic.
assert_equal(topic, self.topic)
# Sequence should be incremental.
assert_equal(struct.unpack('<I', seq)[-1], self.sequence)
self.sequence += 1
body = self._receive_from_publisher_and_check()
hash = body[:32].hex()
label = chr(body[32])
mempool_sequence = None if len(body) != 32+1+8 else struct.unpack("<Q", body[32+1:])[0]
@ -70,6 +73,9 @@ class ZMQTest (BitcoinTestFramework):
self.num_nodes = 2
if self.is_wallet_compiled():
self.requires_wallet = True
# This test isn't testing txn relay/timing, so set whitelist on the
# peers for instant txn relay. This speeds up the test run time 2-3x.
self.extra_args = [["-whitelist=noban@127.0.0.1"]] * self.num_nodes
def skip_test_if_missing_module(self):
self.skip_if_no_py3_zmq()
@ -96,23 +102,46 @@ class ZMQTest (BitcoinTestFramework):
# Restart node with the specified zmq notifications enabled, subscribe to
# all of them and return the corresponding ZMQSubscriber objects.
def setup_zmq_test(self, services, recv_timeout=60, connect_nodes=False):
def setup_zmq_test(self, services, *, recv_timeout=60, sync_blocks=True):
subscribers = []
for topic, address in services:
socket = self.ctx.socket(zmq.SUB)
socket.set(zmq.RCVTIMEO, recv_timeout*1000)
subscribers.append(ZMQSubscriber(socket, topic.encode()))
self.restart_node(0, ["-zmqpub%s=%s" % (topic, address) for topic, address in services])
if connect_nodes:
self.connect_nodes(0, 1)
self.restart_node(0, ["-zmqpub%s=%s" % (topic, address) for topic, address in services] +
self.extra_args[0])
for i, sub in enumerate(subscribers):
sub.socket.connect(services[i][1])
# Relax so that the subscribers are ready before publishing zmq messages
sleep(0.2)
# Ensure that all zmq publisher notification interfaces are ready by
# running the following "sync up" procedure:
# 1. Generate a block on the node
# 2. Try to receive a notification on all subscribers
# 3. If all subscribers get a message within the timeout (1 second),
# we are done, otherwise repeat starting from step 1
for sub in subscribers:
sub.socket.set(zmq.RCVTIMEO, 1000)
while True:
self.nodes[0].generate(1)
recv_failed = False
for sub in subscribers:
try:
sub.receive()
except zmq.error.Again:
self.log.debug("Didn't receive sync-up notification, trying again.")
recv_failed = True
if not recv_failed:
self.log.debug("ZMQ sync-up completed, all subscribers are ready.")
break
# set subscriber's desired timeout for the test
for sub in subscribers:
sub.socket.set(zmq.RCVTIMEO, recv_timeout*1000)
self.connect_nodes(0, 1)
if sync_blocks:
self.sync_blocks()
return subscribers
@ -123,9 +152,7 @@ class ZMQTest (BitcoinTestFramework):
self.zmq_context = zmq.Context()
address = 'tcp://127.0.0.1:28332'
subs = self.setup_zmq_test(
[(topic, address) for topic in ["hashblock", "hashtx", "rawblock", "rawtx"]],
connect_nodes=True)
subs = self.setup_zmq_test([(topic, address) for topic in ["hashblock", "hashtx", "rawblock", "rawtx"]])
hashblock = subs[0]
hashtx = subs[1]
@ -203,6 +230,7 @@ class ZMQTest (BitcoinTestFramework):
hashblock, hashtx = self.setup_zmq_test(
[(topic, address) for topic in ["hashblock", "hashtx"]],
recv_timeout=2) # 2 second timeout to check end of notifications
self.disconnect_nodes(0, 1)
# Generate 1 block in nodes[0] with 1 mempool tx and receive all notifications
payment_txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1.0)
@ -251,6 +279,7 @@ class ZMQTest (BitcoinTestFramework):
"""
self.log.info("Testing 'sequence' publisher")
[seq] = self.setup_zmq_test([("sequence", "tcp://127.0.0.1:28333")])
self.disconnect_nodes(0, 1)
# Mempool sequence number starts at 1
seq_num = 1
@ -385,7 +414,7 @@ class ZMQTest (BitcoinTestFramework):
return
self.log.info("Testing 'mempool sync' usage of sequence notifier")
[seq] = self.setup_zmq_test([("sequence", "tcp://127.0.0.1:28333")], connect_nodes=True)
[seq] = self.setup_zmq_test([("sequence", "tcp://127.0.0.1:28333")])
# In-memory counter, should always start at 1
next_mempool_seq = self.nodes[0].getrawmempool(mempool_sequence=True)["mempool_sequence"]
@ -483,10 +512,13 @@ class ZMQTest (BitcoinTestFramework):
def test_multiple_interfaces(self):
# Set up two subscribers with different addresses
# (note that after the reorg test, syncing would fail due to different
# chain lengths on node0 and node1; for this test we only need node0, so
# we can disable syncing blocks on the setup)
subscribers = self.setup_zmq_test([
("hashblock", "tcp://127.0.0.1:28334"),
("hashblock", "tcp://127.0.0.1:28335"),
])
], sync_blocks=False)
# Generate 1 block in nodes[0] and receive all notifications
self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE)