openstack/deb-python-eventlet
Code Issues Proposed changes

tests: half-hearted fix sporadic zmq_test failures on Travis

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Real fix must work without any sleep(), even 0 delay.
With all these sync events the code makes perfect sense and execution is properly organized.
So I am 99% sure there is a problem in green/zmq.
Hint for the person willing to take on this in future:
send/recv seems not to switch to zmq trampolining
This commit is contained in:
Sergey Shepelev
2016-03-03 06:52:04 +05:00
parent 67ec99992b
commit a236bd20b7
1 changed files with 72 additions and 58 deletions
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130
tests/zmq_test.py
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@@ -1,9 +1,3 @@
from __future__ import with_statement
from eventlet import event, spawn, sleep, semaphore
from nose.tools import *
from tests import check_idle_cpu_usage, LimitedTestCase, using_pyevent, skip_unless
try:
from eventlet.green import zmq
except ImportError:
@@ -11,23 +5,27 @@ except ImportError:
else:
RECV_ON_CLOSED_SOCKET_ERRNOS = (zmq.ENOTSUP, zmq.ENOTSOCK)
import eventlet
from eventlet import event, spawn, sleep, semaphore
import tests
def zmq_supported(_):
try:
import zmq
except ImportError:
return False
return not using_pyevent(_)
return not tests.using_pyevent(_)
class TestUpstreamDownStream(LimitedTestCase):
@skip_unless(zmq_supported)
class TestUpstreamDownStream(tests.LimitedTestCase):
@tests.skip_unless(zmq_supported)
def setUp(self):
super(TestUpstreamDownStream, self).setUp()
self.context = zmq.Context()
self.sockets = []
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def tearDown(self):
self.clear_up_sockets()
super(TestUpstreamDownStream, self).tearDown()
@@ -65,7 +63,7 @@ class TestUpstreamDownStream(LimitedTestCase):
else:
self.fail("Function did not raise any error")
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_close_linger(self):
"""Socket.close() must support linger argument.
@@ -75,7 +73,7 @@ class TestUpstreamDownStream(LimitedTestCase):
sock1.close(1)
sock2.close(linger=0)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_recv_spawned_before_send_is_non_blocking(self):
req, rep, port = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
# req.connect(ipc)
@@ -93,7 +91,7 @@ class TestUpstreamDownStream(LimitedTestCase):
done.wait()
self.assertEqual(msg['res'], b'test')
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_close_socket_raises_enotsup(self):
req, rep, port = self.create_bound_pair(zmq.PAIR, zmq.PAIR)
@@ -102,7 +100,7 @@ class TestUpstreamDownStream(LimitedTestCase):
self.assertRaisesErrno(RECV_ON_CLOSED_SOCKET_ERRNOS, rep.recv)
self.assertRaisesErrno(RECV_ON_CLOSED_SOCKET_ERRNOS, req.send, b'test')
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_close_xsocket_raises_enotsup(self):
req, rep, port = self.create_bound_pair(zmq.XREQ, zmq.XREP)
@@ -111,7 +109,7 @@ class TestUpstreamDownStream(LimitedTestCase):
self.assertRaisesErrno(RECV_ON_CLOSED_SOCKET_ERRNOS, rep.recv)
self.assertRaisesErrno(RECV_ON_CLOSED_SOCKET_ERRNOS, req.send, b'test')
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_send_1k_req_rep(self):
req, rep, port = self.create_bound_pair(zmq.REQ, zmq.REP)
sleep()
@@ -137,7 +135,7 @@ class TestUpstreamDownStream(LimitedTestCase):
final_i = done.wait()
self.assertEqual(final_i, 0)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_send_1k_push_pull(self):
down, up, port = self.create_bound_pair(zmq.PUSH, zmq.PULL)
sleep()
@@ -161,7 +159,7 @@ class TestUpstreamDownStream(LimitedTestCase):
final_i = done.wait()
self.assertEqual(final_i, 0)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_send_1k_pub_sub(self):
pub, sub_all, port = self.create_bound_pair(zmq.PUB, zmq.SUB)
sub1 = self.context.socket(zmq.SUB)
@@ -210,46 +208,62 @@ class TestUpstreamDownStream(LimitedTestCase):
self.assertEqual(sub2_count, 500)
self.assertEqual(sub_all_count, 1000)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_change_subscription(self):
# FIXME: Extensive testing showed this particular test is the root cause
# of sporadic failures on Travis.
pub, sub, port = self.create_bound_pair(zmq.PUB, zmq.SUB)
sub.setsockopt(zmq.SUBSCRIBE, b'test')
sleep(0.2)
sleep(0)
sub_ready = event.Event()
sub_last = event.Event()
sub_done = event.Event()
def rx(sock, done_evt):
def rx():
while sub.recv() != b'test BEGIN':
sleep(0)
sub_ready.send()
count = 0
sub = b'test'
while True:
msg = sock.recv()
sleep()
if b'DONE' in msg:
msg = sub.recv()
if msg == b'test BEGIN':
# BEGIN may come many times
continue
if msg == b'test LAST':
sub.setsockopt(zmq.SUBSCRIBE, b'done')
sub.setsockopt(zmq.UNSUBSCRIBE, b'test')
sleep(0)
# In real application you should either sync
# or tolerate loss of messages.
sub_last.send()
if msg == b'done DONE':
break
if b'LAST' in msg and sub == b'test':
sock.setsockopt(zmq.UNSUBSCRIBE, b'test')
sock.setsockopt(zmq.SUBSCRIBE, b'done')
sub = b'done'
count += 1
done_evt.send(count)
sub_done.send(count)
def tx(sock):
def tx():
# Sync receiver ready to avoid loss of first packets
while not sub_ready.ready():
pub.send(b'test BEGIN')
sleep(0.005)
for i in range(1, 101):
msg = ("test %s" % i).encode()
msg = 'test {0}'.format(i).encode()
if i != 50:
sock.send(msg)
pub.send(msg)
else:
sock.send(b'test LAST')
sleep()
sock.send(b'done DONE')
spawn(rx, sub, sub_done)
spawn(tx, pub)
pub.send(b'test LAST')
sub_last.wait()
# XXX: putting a real delay of 1ms here fixes sporadic failures on Travis
# just yield sleep(0) doesn't cut it
sleep(0.001)
pub.send(b'done DONE')
eventlet.spawn(rx)
eventlet.spawn(tx)
rx_count = sub_done.wait()
self.assertEqual(rx_count, 50)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_recv_multipart_bug68(self):
req, rep, port = self.create_bound_pair(zmq.REQ, zmq.REP)
msg = [b'']
@@ -267,13 +281,13 @@ class TestUpstreamDownStream(LimitedTestCase):
# but it's private __str__ appears to be the way to go
self.assertEqual([m.bytes for m in recieved_msg], msg2)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_recv_noblock_bug76(self):
req, rep, port = self.create_bound_pair(zmq.REQ, zmq.REP)
self.assertRaisesErrno(zmq.EAGAIN, rep.recv, zmq.NOBLOCK)
self.assertRaisesErrno(zmq.EAGAIN, rep.recv, zmq.NOBLOCK, True)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_send_during_recv(self):
sender, receiver, port = self.create_bound_pair(zmq.XREQ, zmq.XREQ)
sleep()
@@ -308,7 +322,7 @@ class TestUpstreamDownStream(LimitedTestCase):
for evt in done_evts:
self.assertEqual(evt.wait(), 0)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_send_during_recv_multipart(self):
sender, receiver, port = self.create_bound_pair(zmq.XREQ, zmq.XREQ)
sleep()
@@ -347,7 +361,7 @@ class TestUpstreamDownStream(LimitedTestCase):
self.assertEqual(final_i, 0)
# Need someway to ensure a thread is blocked on send... This isn't working
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_recv_during_send(self):
sender, receiver, port = self.create_bound_pair(zmq.XREQ, zmq.XREQ)
sleep()
@@ -376,7 +390,7 @@ class TestUpstreamDownStream(LimitedTestCase):
final_i = done.wait()
self.assertEqual(final_i, 0)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_close_during_recv(self):
sender, receiver, port = self.create_bound_pair(zmq.XREQ, zmq.XREQ)
sleep()
@@ -396,7 +410,7 @@ class TestUpstreamDownStream(LimitedTestCase):
done1.wait()
done2.wait()
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_getsockopt_events(self):
sock1, sock2, _port = self.create_bound_pair(zmq.DEALER, zmq.DEALER)
sleep()
@@ -415,7 +429,7 @@ class TestUpstreamDownStream(LimitedTestCase):
events = sock2.getsockopt(zmq.EVENTS)
self.assertEqual(events & zmq.POLLIN, zmq.POLLIN)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_cpu_usage_after_bind(self):
"""zmq eats CPU after PUB socket .bind()
@@ -432,9 +446,9 @@ class TestUpstreamDownStream(LimitedTestCase):
self.sockets.append(sock)
sock.bind_to_random_port("tcp://127.0.0.1")
sleep()
check_idle_cpu_usage(0.2, 0.1)
tests.check_idle_cpu_usage(0.2, 0.1)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_cpu_usage_after_pub_send_or_dealer_recv(self):
"""zmq eats CPU after PUB send or DEALER recv.
@@ -444,18 +458,18 @@ class TestUpstreamDownStream(LimitedTestCase):
sub.setsockopt(zmq.SUBSCRIBE, b"")
sleep()
pub.send(b'test_send')
check_idle_cpu_usage(0.2, 0.1)
tests.check_idle_cpu_usage(0.2, 0.1)
sender, receiver, _port = self.create_bound_pair(zmq.DEALER, zmq.DEALER)
sleep()
sender.send(b'test_recv')
msg = receiver.recv()
self.assertEqual(msg, b'test_recv')
check_idle_cpu_usage(0.2, 0.1)
tests.check_idle_cpu_usage(0.2, 0.1)
class TestQueueLock(LimitedTestCase):
@skip_unless(zmq_supported)
class TestQueueLock(tests.LimitedTestCase):
@tests.skip_unless(zmq_supported)
def test_queue_lock_order(self):
q = zmq._QueueLock()
s = semaphore.Semaphore(0)
@@ -482,7 +496,7 @@ class TestQueueLock(LimitedTestCase):
s.acquire()
self.assertEqual(results, [1, 2, 3])
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_count(self):
q = zmq._QueueLock()
self.assertFalse(q)
@@ -495,7 +509,7 @@ class TestQueueLock(LimitedTestCase):
self.assertTrue(q)
self.assertFalse(q)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_errors(self):
q = zmq._QueueLock()
@@ -506,7 +520,7 @@ class TestQueueLock(LimitedTestCase):
self.assertRaises(zmq.LockReleaseError, q.release)
@skip_unless(zmq_supported)
@tests.skip_unless(zmq_supported)
def test_nested_acquire(self):
q = zmq._QueueLock()
self.assertFalse(q)
@@ -534,8 +548,8 @@ class TestQueueLock(LimitedTestCase):
self.assertEqual(results, [1])
class TestBlockedThread(LimitedTestCase):
@skip_unless(zmq_supported)
class TestBlockedThread(tests.LimitedTestCase):
@tests.skip_unless(zmq_supported)
def test_block(self):
e = zmq._BlockedThread()
done = event.Event()