/usr/lib/python2.7/dist-packages/oslo_messaging/tests/functional/test_rabbitmq.py is in python-oslo.messaging 5.35.0-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | # 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 os
import signal
import time
import fixtures
try:
from pifpaf.drivers import rabbitmq
except ImportError:
rabbitmq = None
from oslo_messaging.tests.functional import utils
from oslo_messaging.tests import utils as test_utils
class ConnectedPortMatcher(object):
def __init__(self, port):
self.port = port
def __eq__(self, data):
return data.get("port") == self.port
def __repr__(self):
return "<ConnectedPortMatcher port=%d>" % self.port
class RabbitMQFailoverTests(test_utils.BaseTestCase):
DRIVERS = [
"rabbit",
]
def test_failover_scenario(self):
# NOTE(sileht): run this test only if functional suite run of a driver
# that use rabbitmq as backend
self.driver = os.environ.get('TRANSPORT_DRIVER')
if self.driver not in self.DRIVERS:
self.skipTest("TRANSPORT_DRIVER is not set to a rabbit driver")
# NOTE(sileht): Allow only one response at a time, to
# have only one tcp connection for reply and ensure it will failover
# correctly
self.config(heartbeat_timeout_threshold=1,
rpc_conn_pool_size=1,
kombu_reconnect_delay=0,
rabbit_retry_interval=0,
rabbit_retry_backoff=0,
group='oslo_messaging_rabbit')
self.pifpaf = self.useFixture(rabbitmq.RabbitMQDriver(cluster=True,
port=5692))
self.url = self.pifpaf.env["PIFPAF_URL"]
self.n1 = self.pifpaf.env["PIFPAF_RABBITMQ_NODENAME1"]
self.n2 = self.pifpaf.env["PIFPAF_RABBITMQ_NODENAME2"]
self.n3 = self.pifpaf.env["PIFPAF_RABBITMQ_NODENAME3"]
# NOTE(gdavoian): additional tweak for pika driver
if self.driver == "pika":
self.url = self.url.replace("rabbit", "pika")
# ensure connections will be establish to the first node
self.pifpaf.stop_node(self.n2)
self.pifpaf.stop_node(self.n3)
self.servers = self.useFixture(utils.RpcServerGroupFixture(
self.conf, self.url, endpoint=self, names=["server"]))
# Don't randomize rabbit hosts
self.useFixture(fixtures.MockPatch(
'oslo_messaging._drivers.impl_rabbit.random',
side_effect=lambda x: x))
# NOTE(sileht): this connects server connections and reply
# connection to nodename n1
self.client = self.servers.client(0)
self.client.ping()
self._check_ports(self.pifpaf.port)
# Switch to node n2
self.pifpaf.start_node(self.n2)
self.assertEqual("callback done", self.client.kill_and_process())
self.assertEqual("callback done", self.client.just_process())
self._check_ports(self.pifpaf.get_port(self.n2))
# Switch to node n3
self.pifpaf.start_node(self.n3)
time.sleep(0.1)
self.pifpaf.kill_node(self.n2, signal=signal.SIGKILL)
time.sleep(0.1)
self.assertEqual("callback done", self.client.just_process())
self._check_ports(self.pifpaf.get_port(self.n3))
self.pifpaf.start_node(self.n1)
time.sleep(0.1)
self.pifpaf.kill_node(self.n3, signal=signal.SIGKILL)
time.sleep(0.1)
self.assertEqual("callback done", self.client.just_process())
self._check_ports(self.pifpaf.get_port(self.n1))
def kill_and_process(self, *args, **kargs):
self.pifpaf.kill_node(self.n1, signal=signal.SIGKILL)
time.sleep(0.1)
return "callback done"
def just_process(self, *args, **kargs):
return "callback done"
def _check_ports(self, port):
getattr(self, '_check_ports_%s_driver' % self.driver)(port)
def _check_ports_pika_driver(self, port):
rpc_server = self.servers.servers[0].server
# FIXME(sileht): Check other connections
connections = [
rpc_server.listener._connection
]
for conn in connections:
self.assertEqual(
port, conn._impl.socket.getpeername()[1])
def _check_ports_rabbit_driver(self, port):
rpc_server = self.servers.servers[0].server
connection_contexts = [
# rpc server
rpc_server.listener._poll_style_listener.conn,
# rpc client
self.client.client.transport._driver._get_connection(),
# rpc client replies waiter
self.client.client.transport._driver._reply_q_conn,
]
ports = [cctxt.connection.channel.connection.sock.getpeername()[1]
for cctxt in connection_contexts]
self.assertEqual([port] * len(ports), ports,
"expected: %s, rpc-server: %s, rpc-client: %s, "
"rpc-replies: %s" % tuple([port] + ports))
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