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#!/usr/bin/env python
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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, signal, sys, time, imp, re, subprocess, glob, random, logging, shutil
from qpid.messaging import Message, NotFound, ConnectionError, Connection
from brokertest import *
from threading import Thread, Lock, Condition
from logging import getLogger, WARN, ERROR, DEBUG
log = getLogger("qpid.ha-tests")
class HaBroker(Broker):
def __init__(self, test, args=[], broker_url=None, **kwargs):
assert BrokerTest.ha_lib, "Cannot locate HA plug-in"
Broker.__init__(self, test,
args=["--load-module", BrokerTest.ha_lib,
"--ha-enable=yes",
"--ha-broker-url", broker_url ],
**kwargs)
def promote(self):
assert os.system("qpid-ha-tool --promote %s"%(self.host_port())) == 0
def set_client_url(self, url):
assert os.system(
"qpid-ha-tool --client-addresses=%s %s"%(url,self.host_port())) == 0
def set_broker_url(self, url):
assert os.system(
"qpid-ha-tool --broker-addresses=%s %s"%(url, self.host_port())) == 0
class ShortTests(BrokerTest):
"""Short HA functionality tests."""
# FIXME aconway 2011-11-15: work around async configuration replication.
# Wait for an address to become valid.
def wait(self, session, address):
def check():
try:
session.sender(address)
return True
except NotFound: return False
assert retry(check), "Timed out waiting for %s"%(address)
# FIXME aconway 2012-01-23: work around async configuration replication.
# Wait for address to become valid on a backup broker.
def wait_backup(self, backup, address):
bs = self.connect_admin(backup).session()
self.wait(bs, address)
bs.connection.close()
# Combines wait_backup and assert_browse_retry
def assert_browse_backup(self, backup, queue, expected, **kwargs):
bs = self.connect_admin(backup).session()
self.wait(bs, queue)
self.assert_browse_retry(bs, queue, expected, **kwargs)
bs.connection.close()
def assert_missing(self, session, address):
try:
session.receiver(address)
self.fail("Should not have been replicated: %s"%(address))
except NotFound: pass
def connect_admin(self, backup, **kwargs):
"""Connect to a backup broker as an admin connection"""
return backup.connect(client_properties={"qpid.ha-admin":1}, **kwargs)
def test_replication(self):
"""Test basic replication of configuration and messages before and
after backup has connected"""
def queue(name, replicate):
return "%s;{create:always,node:{x-declare:{arguments:{'qpid.replicate':%s}}}}"%(name, replicate)
def exchange(name, replicate, bindq):
return"%s;{create:always,node:{type:topic,x-declare:{arguments:{'qpid.replicate':%s}, type:'fanout'},x-bindings:[{exchange:'%s',queue:'%s'}]}}"%(name, replicate, name, bindq)
def setup(p, prefix, primary):
"""Create config, send messages on the primary p"""
s = p.sender(queue(prefix+"q1", "messages"))
for m in ["a", "b", "1"]: s.send(Message(m))
# Test replication of dequeue
self.assertEqual(p.receiver(prefix+"q1").fetch(timeout=0).content, "a")
p.acknowledge()
p.sender(queue(prefix+"q2", "configuration")).send(Message("2"))
p.sender(queue(prefix+"q3", "none")).send(Message("3"))
p.sender(exchange(prefix+"e1", "messages", prefix+"q1")).send(Message("4"))
p.sender(exchange(prefix+"e2", "messages", prefix+"q2")).send(Message("5"))
# Test unbind
p.sender(queue(prefix+"q4", "messages")).send(Message("6"))
s3 = p.sender(exchange(prefix+"e4", "messages", prefix+"q4"))
s3.send(Message("7"))
# Use old connection to unbind
us = primary.connect_old().session(str(qpid.datatypes.uuid4()))
us.exchange_unbind(exchange=prefix+"e4", binding_key="", queue=prefix+"q4")
p.sender(prefix+"e4").send(Message("drop1")) # Should be dropped
# FIXME aconway 2011-11-24: need a marker so we can wait till sync is done.
p.sender(queue(prefix+"x", "configuration"))
def verify(b, prefix, p):
"""Verify setup was replicated to backup b"""
# FIXME aconway 2011-11-21: wait for configuration to replicate.
self.wait(b, prefix+"x");
# FIXME aconway 2011-11-24: assert_browse_retry to deal with async replication.
self.assert_browse_retry(b, prefix+"q1", ["b", "1", "4"])
self.assertEqual(p.receiver(prefix+"q1").fetch(timeout=0).content, "b")
p.acknowledge()
self.assert_browse_retry(b, prefix+"q1", ["1", "4"])
self.assert_browse_retry(b, prefix+"q2", []) # configuration only
self.assert_missing(b, prefix+"q3")
b.sender(prefix+"e1").send(Message(prefix+"e1")) # Verify binds with replicate=all
self.assert_browse_retry(b, prefix+"q1", ["1", "4", prefix+"e1"])
b.sender(prefix+"e2").send(Message(prefix+"e2")) # Verify binds with replicate=configuration
self.assert_browse_retry(b, prefix+"q2", [prefix+"e2"])
b.sender(prefix+"e4").send(Message("drop2")) # Verify unbind.
self.assert_browse_retry(b, prefix+"q4", ["6","7"])
primary = HaBroker(self, name="primary")
primary.promote()
p = primary.connect().session()
# Create config, send messages before starting the backup, to test catch-up replication.
setup(p, "1", primary)
backup = HaBroker(self, name="backup", broker_url=primary.host_port())
# Create config, send messages after starting the backup, to test steady-state replication.
setup(p, "2", primary)
# Verify the data on the backup
b = self.connect_admin(backup).session()
verify(b, "1", p)
verify(b, "2", p)
# Test a series of messages, enqueue all then dequeue all.
s = p.sender(queue("foo","messages"))
self.wait(b, "foo")
msgs = [str(i) for i in range(10)]
for m in msgs: s.send(Message(m))
self.assert_browse_retry(p, "foo", msgs)
self.assert_browse_retry(b, "foo", msgs)
r = p.receiver("foo")
for m in msgs: self.assertEqual(m, r.fetch(timeout=0).content)
p.acknowledge()
self.assert_browse_retry(p, "foo", [])
self.assert_browse_retry(b, "foo", [])
# Another series, this time verify each dequeue individually.
for m in msgs: s.send(Message(m))
self.assert_browse_retry(p, "foo", msgs)
self.assert_browse_retry(b, "foo", msgs)
for i in range(len(msgs)):
self.assertEqual(msgs[i], r.fetch(timeout=0).content)
p.acknowledge()
self.assert_browse_retry(p, "foo", msgs[i+1:])
self.assert_browse_retry(b, "foo", msgs[i+1:])
def qpid_replicate(self, value="messages"):
return "node:{x-declare:{arguments:{'qpid.replicate':%s}}}" % value
def test_sync(self):
def queue(name, replicate):
return "%s;{create:always,%s}"%(name, self.qpid_replicate(replicate))
primary = HaBroker(self, name="primary")
primary.promote()
p = primary.connect().session()
s = p.sender(queue("q","messages"))
for m in [str(i) for i in range(0,10)]: s.send(m)
s.sync()
backup1 = HaBroker(self, name="backup1", broker_url=primary.host_port())
for m in [str(i) for i in range(10,20)]: s.send(m)
s.sync()
backup2 = HaBroker(self, name="backup2", broker_url=primary.host_port())
for m in [str(i) for i in range(20,30)]: s.send(m)
s.sync()
msgs = [str(i) for i in range(30)]
b1 = self.connect_admin(backup1).session()
self.wait(b1, "q");
self.assert_browse_retry(b1, "q", msgs)
b2 = self.connect_admin(backup2).session()
self.wait(b2, "q");
self.assert_browse_retry(b2, "q", msgs)
def test_send_receive(self):
"""Verify sequence numbers of messages sent by qpid-send"""
primary = HaBroker(self, name="primary")
primary.promote()
backup1 = HaBroker(self, name="backup1", broker_url=primary.host_port())
backup2 = HaBroker(self, name="backup2", broker_url=primary.host_port())
sender = self.popen(
["qpid-send",
"--broker", primary.host_port(),
"--address", "q;{create:always,%s}"%(self.qpid_replicate("messages")),
"--messages=1000",
"--content-string=x"
])
receiver = self.popen(
["qpid-receive",
"--broker", primary.host_port(),
"--address", "q;{create:always,%s}"%(self.qpid_replicate("messages")),
"--messages=990",
"--timeout=10"
])
try:
self.assertEqual(sender.wait(), 0)
self.assertEqual(receiver.wait(), 0)
expect = [long(i) for i in range(991, 1001)]
sn = lambda m: m.properties["sn"]
self.assert_browse_retry(self.connect_admin(backup1).session(), "q", expect, transform=sn)
self.assert_browse_retry(self.connect_admin(backup2).session(), "q", expect, transform=sn)
except:
print self.browse(primary.connect().session(), "q", transform=sn)
print self.browse(self.connect_admin(backup1).session(), "q", transform=sn)
print self.browse(self.connect_admin(backup2).session(), "q", transform=sn)
raise
def test_failover(self):
"""Verify that backups rejects connections and that fail-over works in python client"""
getLogger().setLevel(ERROR) # Disable WARNING log messages due to failover
primary = HaBroker(self, name="primary", expect=EXPECT_EXIT_FAIL)
primary.promote()
backup = HaBroker(self, name="backup", broker_url=primary.host_port())
# Check that backup rejects normal connections
try:
backup.connect()
self.fail("Expected connection to backup to fail")
except ConnectionError: pass
# Check that admin connections are allowed to backup.
self.connect_admin(backup).close()
# Test discovery: should connect to primary after reject by backup
c = backup.connect(reconnect_urls=[primary.host_port(), backup.host_port()], reconnect=True)
s = c.session()
sender = s.sender("q;{create:always,%s}"%(self.qpid_replicate()))
self.wait_backup(backup, "q")
sender.send("foo")
primary.kill()
assert retry(lambda: not is_running(primary.pid))
backup.promote()
self.assert_browse_retry(s, "q", ["foo"])
c.close()
def test_failover_cpp(self):
primary = HaBroker(self, name="primary", expect=EXPECT_EXIT_FAIL)
primary.promote()
backup = HaBroker(self, name="backup", broker_url=primary.host_port())
url="%s,%s"%(primary.host_port(), backup.host_port())
primary.connect().session().sender("q;{create:always,%s}"%(self.qpid_replicate()))
self.wait_backup(backup, "q")
sender = NumberedSender(primary, url=url, queue="q", failover_updates = False)
receiver = NumberedReceiver(primary, url=url, queue="q", failover_updates = False)
receiver.start()
sender.start()
self.wait_backup(backup, "q")
assert retry(lambda: receiver.received > 10) # Wait for some messages to get thru
primary.kill()
assert retry(lambda: not is_running(primary.pid)) # Wait for primary to die
backup.promote()
n = receiver.received # Make sure we are still running
assert retry(lambda: receiver.received > n + 10)
sender.stop()
receiver.stop()
if __name__ == "__main__":
shutil.rmtree("brokertest.tmp", True)
os.execvp("qpid-python-test", ["qpid-python-test", "-m", "ha_tests"] + sys.argv[1:])
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