| #!/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, math, unittest, random |
| import traceback |
| from qpid.messaging import Message, SessionError, NotFound, ConnectionError, ReceiverError, Connection, Timeout, Disposition, REJECTED, Empty |
| from qpid.datatypes import uuid4 |
| from brokertest import * |
| from ha_test import * |
| from threading import Thread, Lock, Condition |
| from logging import getLogger, WARN, ERROR, DEBUG, INFO |
| from qpidtoollibs import BrokerAgent, EventHelper |
| from uuid import UUID |
| |
| log = getLogger(__name__) |
| |
| def grep(filename, regexp): |
| for line in open(filename).readlines(): |
| if (regexp.search(line)): return True |
| return False |
| |
| class HaBrokerTest(BrokerTest): |
| """Base class for HA broker tests""" |
| def assert_log_no_errors(self, broker): |
| log = broker.get_log() |
| if grep(log, re.compile("] error|] critical")): |
| self.fail("Errors in log file %s"%(log)) |
| |
| class ReplicationTests(HaBrokerTest): |
| """Correctness tests for HA replication.""" |
| |
| 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, key): |
| return "%s/%s;{create:always,node:{type:topic,x-declare:{arguments:{'qpid.replicate':%s}, type:'topic'},x-bindings:[{exchange:'%s',queue:'%s',key:'%s'}]}}"%(name, key, replicate, name, bindq, key) |
| |
| def setup(p, prefix, primary): |
| """Create config, send messages on the primary p""" |
| s = p.sender(queue(prefix+"q1", "all")) |
| 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", "all", prefix+"q1", "key1")).send(Message("4")) |
| p.sender(exchange(prefix+"e2", "configuration", prefix+"q2", "key2")).send(Message("5")) |
| # Test unbind |
| p.sender(queue(prefix+"q4", "all")).send(Message("6")) |
| s3 = p.sender(exchange(prefix+"e4", "all", prefix+"q4", "key4")) |
| s3.send(Message("7")) |
| # Use old connection to unbind |
| us = primary.connect_old().session(str(uuid4())) |
| us.exchange_unbind(exchange=prefix+"e4", binding_key="key4", queue=prefix+"q4") |
| p.sender(prefix+"e4").send(Message("drop1")) # Should be dropped |
| # Test replication of deletes |
| p.sender(queue(prefix+"dq", "all")) |
| p.sender(exchange(prefix+"de", "all", prefix+"dq", "")) |
| p.sender(prefix+"dq;{delete:always}").close() |
| p.sender(prefix+"de;{delete:always}").close() |
| # 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""" |
| # Wait for configuration to replicate. |
| wait_address(b, prefix+"x"); |
| 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 |
| assert not valid_address(b, prefix+"q3") |
| |
| # Verify exchange with replicate=all |
| b.sender(prefix+"e1/key1").send(Message(prefix+"e1")) |
| self.assert_browse_retry(b, prefix+"q1", ["1", "4", prefix+"e1"]) |
| |
| # Verify exchange with replicate=configuration |
| b.sender(prefix+"e2/key2").send(Message(prefix+"e2")) |
| self.assert_browse_retry(b, prefix+"q2", [prefix+"e2"]) |
| |
| b.sender(prefix+"e4/key4").send(Message("drop2")) # Verify unbind. |
| self.assert_browse_retry(b, prefix+"q4", ["6","7"]) |
| |
| # Verify deletes |
| assert not valid_address(b, prefix+"dq") |
| assert not valid_address(b, prefix+"de") |
| |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| 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", brokers_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 = backup.connect_admin().session() |
| verify(b, "1", p) |
| verify(b, "2", p) |
| # Test a series of messages, enqueue all then dequeue all. |
| s = p.sender(queue("foo","all")) |
| wait_address(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:]) |
| finally: l.restore() |
| |
| def test_sync(self): |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| p = primary.connect().session() |
| s = p.sender("q;{create:always}") |
| for m in [str(i) for i in range(0,10)]: s.send(m) |
| s.sync() |
| backup1 = HaBroker(self, name="backup1", brokers_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", brokers_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 = backup1.connect_admin().session() |
| wait_address(b1, "q"); |
| self.assert_browse_retry(b1, "q", msgs) |
| b2 = backup2.connect_admin().session() |
| wait_address(b2, "q"); |
| self.assert_browse_retry(b2, "q", msgs) |
| |
| def test_send_receive(self): |
| """Verify sequence numbers of messages sent by qpid-send""" |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| brokers = HaCluster(self, 3) |
| sender = self.popen( |
| ["qpid-send", |
| "--broker", brokers[0].host_port(), |
| "--address", "q;{create:always}", |
| "--messages=1000", |
| "--content-string=x" |
| ]) |
| receiver = self.popen( |
| ["qpid-receive", |
| "--broker", brokers[0].host_port(), |
| "--address", "q;{create:always}", |
| "--messages=990", |
| "--timeout=10" |
| ]) |
| 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"] |
| brokers[1].assert_browse_backup("q", expect, transform=sn) |
| brokers[2].assert_browse_backup("q", expect, transform=sn) |
| finally: l.restore() |
| |
| def test_failover_python(self): |
| """Verify that backups rejects connections and that fail-over works in python client""" |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| primary = HaBroker(self, name="primary", expect=EXPECT_EXIT_FAIL) |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| # Check that backup rejects normal connections |
| try: |
| backup.connect().session() |
| self.fail("Expected connection to backup to fail") |
| except ConnectionError: pass |
| # Check that admin connections are allowed to backup. |
| backup.connect_admin().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}") |
| backup.wait_backup("q") |
| sender.send("foo") |
| primary.kill() |
| assert retry(lambda: not is_running(primary.pid)) |
| backup.promote() |
| sender.send("bar") |
| self.assert_browse_retry(s, "q", ["foo", "bar"]) |
| c.close() |
| finally: l.restore() |
| |
| def test_failover_cpp(self): |
| """Verify that failover works in the C++ client.""" |
| primary = HaBroker(self, name="primary", expect=EXPECT_EXIT_FAIL) |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| url="%s,%s"%(primary.host_port(), backup.host_port()) |
| primary.connect().session().sender("q;{create:always}") |
| backup.wait_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() |
| backup.wait_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() |
| |
| def test_backup_failover(self): |
| """Verify that a backup broker fails over and recovers queue state""" |
| brokers = HaCluster(self, 3) |
| brokers[0].connect().session().sender("q;{create:always}").send("a") |
| for b in brokers[1:]: b.assert_browse_backup("q", ["a"], msg=b) |
| brokers[0].expect = EXPECT_EXIT_FAIL |
| brokers.kill(0) |
| brokers[1].connect().session().sender("q").send("b") |
| brokers[2].assert_browse_backup("q", ["a","b"]) |
| s = brokers[1].connect().session() |
| self.assertEqual("a", s.receiver("q").fetch().content) |
| s.acknowledge() |
| brokers[2].assert_browse_backup("q", ["b"]) |
| |
| def test_qpid_config_replication(self): |
| """Set up replication via qpid-config""" |
| brokers = HaCluster(self,2) |
| brokers[0].config_declare("q","all") |
| brokers[0].connect().session().sender("q").send("foo") |
| brokers[1].assert_browse_backup("q", ["foo"]) |
| |
| def test_standalone_queue_replica(self): |
| """Test replication of individual queues outside of cluster mode""" |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| primary = HaBroker(self, name="primary", ha_cluster=False, |
| args=["--ha-queue-replication=yes"]); |
| pc = primary.connect() |
| ps = pc.session().sender("q;{create:always}") |
| pr = pc.session().receiver("q;{create:always}") |
| backup = HaBroker(self, name="backup", ha_cluster=False, |
| args=["--ha-queue-replication=yes"]) |
| br = backup.connect().session().receiver("q;{create:always}") |
| |
| # Set up replication with qpid-ha |
| backup.replicate(primary.host_port(), "q") |
| ps.send("a") |
| backup.assert_browse_backup("q", ["a"]) |
| ps.send("b") |
| backup.assert_browse_backup("q", ["a", "b"]) |
| self.assertEqual("a", pr.fetch().content) |
| pr.session.acknowledge() |
| backup.assert_browse_backup("q", ["b"]) |
| |
| # Set up replication with qpid-config |
| ps2 = pc.session().sender("q2;{create:always}") |
| backup.config_replicate(primary.host_port(), "q2"); |
| ps2.send("x") |
| backup.assert_browse_backup("q2", ["x"]) |
| finally: l.restore() |
| |
| def test_queue_replica_failover(self): |
| """Test individual queue replication from a cluster to a standalone |
| backup broker, verify it fails over.""" |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| cluster = HaCluster(self, 2) |
| primary = cluster[0] |
| pc = cluster.connect(0) |
| ps = pc.session().sender("q;{create:always}") |
| pr = pc.session().receiver("q;{create:always}") |
| backup = HaBroker(self, name="backup", ha_cluster=False, |
| args=["--ha-queue-replication=yes"]) |
| br = backup.connect().session().receiver("q;{create:always}") |
| backup.replicate(cluster.url, "q") |
| ps.send("a") |
| backup.assert_browse_backup("q", ["a"]) |
| cluster.bounce(0) |
| backup.assert_browse_backup("q", ["a"]) |
| ps.send("b") |
| backup.assert_browse_backup("q", ["a", "b"]) |
| cluster.bounce(1) |
| self.assertEqual("a", pr.fetch().content) |
| pr.session.acknowledge() |
| backup.assert_browse_backup("q", ["b"]) |
| pc.close() |
| br.close() |
| finally: l.restore() |
| |
| def test_lvq(self): |
| """Verify that we replicate to an LVQ correctly""" |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| s = primary.connect().session().sender("lvq; {create:always, node:{x-declare:{arguments:{'qpid.last_value_queue_key':lvq-key}}}}") |
| def send(key,value): s.send(Message(content=value,properties={"lvq-key":key})) |
| for kv in [("a","a-1"),("b","b-1"),("a","a-2"),("a","a-3"),("c","c-1"),("c","c-2")]: |
| send(*kv) |
| backup.assert_browse_backup("lvq", ["b-1", "a-3", "c-2"]) |
| send("b","b-2") |
| backup.assert_browse_backup("lvq", ["a-3", "c-2", "b-2"]) |
| send("c","c-3") |
| backup.assert_browse_backup("lvq", ["a-3", "b-2", "c-3"]) |
| send("d","d-1") |
| backup.assert_browse_backup("lvq", ["a-3", "b-2", "c-3", "d-1"]) |
| |
| def test_ring(self): |
| """Test replication with the ring queue policy""" |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| s = primary.connect().session().sender("q; {create:always, node:{x-declare:{arguments:{'qpid.policy_type':ring, 'qpid.max_count':5}}}}") |
| for i in range(10): s.send(Message(str(i))) |
| backup.assert_browse_backup("q", [str(i) for i in range(5,10)]) |
| |
| def test_reject(self): |
| """Test replication with the reject queue policy""" |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| s = primary.connect().session().sender("q; {create:always, node:{x-declare:{arguments:{'qpid.policy_type':reject, 'qpid.max_count':5}}}}") |
| try: |
| for i in range(10): s.send(Message(str(i)), sync=False) |
| except qpid.messaging.exceptions.TargetCapacityExceeded: pass |
| backup.assert_browse_backup("q", [str(i) for i in range(0,5)]) |
| # Detach, don't close as there is a broken session |
| s.session.connection.detach() |
| |
| def test_priority(self): |
| """Verify priority queues replicate correctly""" |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| session = primary.connect().session() |
| s = session.sender("priority-queue; {create:always, node:{x-declare:{arguments:{'qpid.priorities':10}}}}") |
| priorities = [8,9,5,1,2,2,3,4,9,7,8,9,9,2] |
| for p in priorities: s.send(Message(priority=p)) |
| # Can't use browse_backup as browser sees messages in delivery order not priority. |
| backup.wait_backup("priority-queue") |
| r = backup.connect_admin().session().receiver("priority-queue") |
| received = [r.fetch().priority for i in priorities] |
| self.assertEqual(sorted(priorities, reverse=True), received) |
| |
| def test_priority_fairshare(self): |
| """Verify priority queues replicate correctly""" |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| session = primary.connect().session() |
| levels = 8 |
| priorities = [4,5,3,7,8,8,2,8,2,8,8,16,6,6,6,6,6,6,8,3,5,8,3,5,5,3,3,8,8,3,7,3,7,7,7,8,8,8,2,3] |
| limits={7:0,6:4,5:3,4:2,3:2,2:2,1:2} |
| limit_policy = ",".join(["'qpid.fairshare':5"] + ["'qpid.fairshare-%s':%s"%(i[0],i[1]) for i in limits.iteritems()]) |
| s = session.sender("priority-queue; {create:always, node:{x-declare:{arguments:{'qpid.priorities':%s, %s}}}}"%(levels,limit_policy)) |
| messages = [Message(content=str(uuid4()), priority = p) for p in priorities] |
| for m in messages: s.send(m) |
| backup.wait_backup(s.target) |
| r = backup.connect_admin().session().receiver("priority-queue") |
| received = [r.fetch().content for i in priorities] |
| sort = sorted(messages, key=lambda m: priority_level(m.priority, levels), reverse=True) |
| fair = [m.content for m in fairshare(sort, lambda l: limits.get(l,0), levels)] |
| self.assertEqual(received, fair) |
| |
| def test_priority_ring(self): |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| s = primary.connect().session().sender("q; {create:always, node:{x-declare:{arguments:{'qpid.policy_type':ring, 'qpid.max_count':5, 'qpid.priorities':10}}}}") |
| priorities = [8,9,5,1,2,2,3,4,9,7,8,9,9,2] |
| for p in priorities: s.send(Message(priority=p)) |
| expect = sorted(priorities,reverse=True)[0:5] |
| primary.assert_browse("q", expect, transform=lambda m: m.priority) |
| backup.assert_browse_backup("q", expect, transform=lambda m: m.priority) |
| |
| def test_backup_acquired(self): |
| """Verify that acquired messages are backed up, for all queue types.""" |
| class Test: |
| def __init__(self, queue, arguments, expect): |
| self.queue = queue |
| self.address = "%s;{create:always,node:{x-declare:{arguments:{%s}}}}"%( |
| self.queue, ",".join(arguments + ["'qpid.replicate':all"])) |
| self.expect = [str(i) for i in expect] |
| |
| def send(self, connection): |
| """Send messages, then acquire one but don't acknowledge""" |
| s = connection.session() |
| for m in range(10): s.sender(self.address).send(str(m)) |
| s.receiver(self.address).fetch() |
| |
| def wait(self, brokertest, backup): |
| backup.wait_backup(self.queue) |
| |
| def verify(self, brokertest, backup): |
| backup.assert_browse_backup(self.queue, self.expect, msg=self.queue) |
| |
| tests = [ |
| Test("plain",[],range(10)), |
| Test("ring", ["'qpid.policy_type':ring", "'qpid.max_count':5"], range(5,10)), |
| Test("priority",["'qpid.priorities':10"], range(10)), |
| Test("fairshare", ["'qpid.priorities':10,'qpid.fairshare':5"], range(10)), |
| Test("lvq", ["'qpid.last_value_queue_key':lvq-key"], [9]) |
| ] |
| |
| primary = HaBroker(self, name="primary") |
| primary.promote() |
| backup1 = HaBroker(self, name="backup1", brokers_url=primary.host_port()) |
| c = primary.connect() |
| for t in tests: t.send(c) # Send messages, leave one unacknowledged. |
| |
| backup2 = HaBroker(self, name="backup2", brokers_url=primary.host_port()) |
| # Wait for backups to catch up. |
| for t in tests: |
| t.wait(self, backup1) |
| t.wait(self, backup2) |
| # Verify acquired message was replicated |
| for t in tests: t.verify(self, backup1) |
| for t in tests: t.verify(self, backup2) |
| |
| def test_replicate_default(self): |
| """Make sure we don't replicate if ha-replicate is unspecified or none""" |
| cluster1 = HaCluster(self, 2, ha_replicate=None) |
| cluster1[1].wait_status("ready") |
| c1 = cluster1[0].connect().session().sender("q;{create:always}") |
| cluster2 = HaCluster(self, 2, ha_replicate="none") |
| cluster2[1].wait_status("ready") |
| cluster2[0].connect().session().sender("q;{create:always}") |
| time.sleep(.1) # Give replication a chance. |
| try: |
| cluster1[1].connect_admin().session().receiver("q") |
| self.fail("Excpected no-such-queue exception") |
| except NotFound: pass |
| try: |
| cluster2[1].connect_admin().session().receiver("q") |
| self.fail("Excpected no-such-queue exception") |
| except NotFound: pass |
| |
| def test_replicate_binding(self): |
| """Verify that binding replication can be disabled""" |
| primary = HaBroker(self, name="primary", expect=EXPECT_EXIT_FAIL) |
| primary.promote() |
| backup = HaBroker(self, name="backup", brokers_url=primary.host_port()) |
| ps = primary.connect().session() |
| ps.sender("ex;{create:always,node:{type:topic,x-declare:{arguments:{'qpid.replicate':all}, type:'fanout'}}}") |
| ps.sender("q;{create:always,node:{type:queue,x-declare:{arguments:{'qpid.replicate':all}},x-bindings:[{exchange:'ex',queue:'q',key:'',arguments:{'qpid.replicate':none}}]}}") |
| backup.wait_backup("q") |
| |
| primary.kill() |
| assert retry(lambda: not is_running(primary.pid)) # Wait for primary to die |
| backup.promote() |
| bs = backup.connect_admin().session() |
| bs.sender("ex").send(Message("msg")) |
| self.assert_browse_retry(bs, "q", []) |
| |
| def test_invalid_replication(self): |
| """Verify that we reject an attempt to declare a queue with invalid replication value.""" |
| cluster = HaCluster(self, 1, ha_replicate="all") |
| try: |
| c = cluster[0].connect().session().sender("q;{create:always, node:{x-declare:{arguments:{'qpid.replicate':XXinvalidXX}}}}") |
| self.fail("Expected ConnectionError") |
| except ConnectionError: pass |
| |
| def test_exclusive_queue(self): |
| """Ensure that we can back-up exclusive queues, i.e. the replicating |
| subscriptions are exempt from the exclusivity""" |
| cluster = HaCluster(self, 2) |
| def test(addr): |
| c = cluster[0].connect() |
| q = addr.split(";")[0] |
| r = c.session().receiver(addr) |
| try: c.session().receiver(addr); self.fail("Expected exclusive exception") |
| except ReceiverError: pass |
| s = c.session().sender(q).send(q) |
| cluster[1].assert_browse_backup(q, [q]) |
| test("excl_sub;{create:always, link:{x-subscribe:{exclusive:True}}}"); |
| test("excl_queue;{create:always, node:{x-declare:{exclusive:True}}}") |
| |
| def test_auto_delete_exclusive(self): |
| """Verify that we ignore auto-delete, exclusive, non-auto-delete-timeout queues""" |
| cluster = HaCluster(self, 2) |
| s0 = cluster[0].connect().session() |
| s0.receiver("exad;{create:always,node:{x-declare:{exclusive:True,auto-delete:True}}}") |
| s0.receiver("ex;{create:always,node:{x-declare:{exclusive:True}}}") |
| ad = s0.receiver("ad;{create:always,node:{x-declare:{auto-delete:True}}}") |
| s0.receiver("time;{create:always,node:{x-declare:{exclusive:True,auto-delete:True,arguments:{'qpid.auto_delete_timeout':1}}}}") |
| s0.receiver("q;{create:always}") |
| |
| s1 = cluster[1].connect_admin().session() |
| cluster[1].wait_backup("q") |
| assert not valid_address(s1, "exad") |
| assert valid_address(s1, "ex") |
| assert valid_address(s1, "ad") |
| assert valid_address(s1, "time") |
| |
| # Verify that auto-delete queues are not kept alive by |
| # replicating subscriptions |
| ad.close() |
| s0.sync() |
| assert not valid_address(s0, "ad") |
| |
| def test_broker_info(self): |
| """Check that broker information is correctly published via management""" |
| cluster = HaCluster(self, 3) |
| |
| for broker in cluster: # Make sure HA system-id matches broker's |
| qmf = broker.agent().getHaBroker() |
| self.assertEqual(qmf.systemId, UUID(broker.agent().getBroker().systemRef)) |
| |
| cluster_ports = map(lambda b: b.port(), cluster) |
| cluster_ports.sort() |
| def ports(qmf): |
| qmf.update() |
| return sorted(map(lambda b: b["port"], qmf.members)) |
| # Check that all brokers have the same membership as the cluster |
| for broker in cluster: |
| qmf = broker.agent().getHaBroker() |
| assert retry(lambda: cluster_ports == ports(qmf), 1), "%s != %s on %s"%(cluster_ports, ports(qmf), broker) |
| # Add a new broker, check it is updated everywhere |
| b = cluster.start() |
| cluster_ports.append(b.port()) |
| cluster_ports.sort() |
| for broker in cluster: |
| qmf = broker.agent().getHaBroker() |
| assert retry(lambda: cluster_ports == ports(qmf), 1), "%s != %s"%(cluster_ports, ports(qmf)) |
| |
| def test_auth(self): |
| """Verify that authentication does not interfere with replication.""" |
| # FIXME aconway 2012-07-09: generate test sasl config portably for cmake |
| sasl_config=os.path.join(self.rootdir, "sasl_config") |
| if not os.path.exists(sasl_config): |
| print "WARNING: Skipping test, SASL test configuration %s not found."%sasl_config |
| return |
| acl=os.path.join(os.getcwd(), "policy.acl") |
| aclf=file(acl,"w") |
| # Verify that replication works with auth=yes and HA user has at least the following |
| # privileges: |
| aclf.write(""" |
| acl allow zag@QPID access queue |
| acl allow zag@QPID create queue |
| acl allow zag@QPID consume queue |
| acl allow zag@QPID delete queue |
| acl allow zag@QPID access exchange |
| acl allow zag@QPID create exchange |
| acl allow zag@QPID bind exchange |
| acl allow zag@QPID publish exchange |
| acl allow zag@QPID delete exchange |
| acl allow zag@QPID access method |
| acl allow zag@QPID create link |
| acl deny all all |
| """) |
| aclf.close() |
| cluster = HaCluster( |
| self, 2, |
| args=["--auth", "yes", "--sasl-config", sasl_config, |
| "--acl-file", acl, "--load-module", os.getenv("ACL_LIB"), |
| "--ha-username=zag", "--ha-password=zag", "--ha-mechanism=PLAIN" |
| ], |
| client_credentials=Credentials("zag", "zag", "PLAIN")) |
| s0 = cluster[0].connect(username="zag", password="zag").session(); |
| s0.receiver("q;{create:always}") |
| s0.receiver("ex;{create:always,node:{type:topic,x-declare:{type:'fanout'},x-bindings:[{exchange:'ex',queue:'q'}]}}") |
| cluster[1].wait_backup("q") |
| cluster[1].wait_backup("ex") |
| s1 = cluster[1].connect_admin().session(); # Uses Credentials above. |
| s1.sender("ex").send("foo"); |
| self.assertEqual(s1.receiver("q").fetch().content, "foo") |
| |
| def test_alternate_exchange(self): |
| """Verify that alternate-exchange on exchanges and queues is propagated |
| to new members of a cluster. """ |
| cluster = HaCluster(self, 2) |
| s = cluster[0].connect().session() |
| # altex exchange: acts as alternate exchange |
| s.sender("altex;{create:always,node:{type:topic,x-declare:{type:'fanout'}}}") |
| # altq queue bound to altex, collect re-routed messages. |
| s.sender("altq;{create:always,node:{x-bindings:[{exchange:'altex',queue:altq}]}}") |
| # ex exchange with alternate-exchange altex and no queues bound |
| s.sender("ex;{create:always,node:{type:topic, x-declare:{type:'direct', alternate-exchange:'altex'}}}") |
| # create queue q with alternate-exchange altex |
| s.sender("q;{create:always,node:{type:queue, x-declare:{alternate-exchange:'altex'}}}") |
| # create a bunch of exchanges to ensure we don't clean up prematurely if the |
| # response comes in multiple fragments. |
| for i in xrange(200): s.sender("ex.%s;{create:always,node:{type:topic}}"%i) |
| |
| def verify(broker): |
| s = broker.connect().session() |
| # Verify unmatched message goes to ex's alternate. |
| s.sender("ex").send("foo") |
| altq = s.receiver("altq") |
| self.assertEqual("foo", altq.fetch(timeout=0).content) |
| s.acknowledge() |
| # Verify rejected message goes to q's alternate. |
| s.sender("q").send("bar") |
| msg = s.receiver("q").fetch(timeout=0) |
| self.assertEqual("bar", msg.content) |
| s.acknowledge(msg, Disposition(REJECTED)) # Reject the message |
| self.assertEqual("bar", altq.fetch(timeout=0).content) |
| s.acknowledge() |
| |
| def ss(n): return cluster[n].connect().session() |
| |
| # Sanity check: alternate exchanges on original broker |
| verify(cluster[0]) |
| # Altex is in use as an alternate exchange. |
| self.assertRaises(SessionError, |
| lambda:ss(0).sender("altex;{delete:always}").close()) |
| # Check backup that was connected during setup. |
| cluster[1].wait_status("ready") |
| cluster[1].wait_backup("ex") |
| cluster[1].wait_backup("q") |
| cluster.bounce(0) |
| verify(cluster[1]) |
| |
| # Check a newly started backup. |
| cluster.start() |
| cluster[2].wait_status("ready") |
| cluster[2].wait_backup("ex") |
| cluster[2].wait_backup("q") |
| cluster.bounce(1) |
| verify(cluster[2]) |
| |
| # Check that alt-exchange in-use count is replicated |
| s = cluster[2].connect().session(); |
| |
| self.assertRaises(SessionError, |
| lambda:ss(2).sender("altex;{delete:always}").close()) |
| s.sender("q;{delete:always}").close() |
| self.assertRaises(SessionError, |
| lambda:ss(2).sender("altex;{delete:always}").close()) |
| s.sender("ex;{delete:always}").close() |
| s.sender("altex;{delete:always}").close() |
| |
| def test_priority_reroute(self): |
| """Regression test for QPID-4262, rerouting messages from a priority queue |
| to itself causes a crash""" |
| cluster = HaCluster(self, 2) |
| primary = cluster[0] |
| session = primary.connect().session() |
| s = session.sender("pq; {create:always, node:{x-declare:{arguments:{'qpid.priorities':10}},x-bindings:[{exchange:'amq.fanout',queue:pq}]}}") |
| for m in xrange(100): s.send(Message(str(m), priority=m%10)) |
| pq = QmfAgent(primary.host_port()).getQueue("pq") |
| pq.reroute(request=0, useAltExchange=False, exchange="amq.fanout") |
| # Verify that consuming is in priority order |
| expect = [str(10*i+p) for p in xrange(9,-1,-1) for i in xrange(0,10) ] |
| actual = [m.content for m in primary.get_messages("pq", 100)] |
| self.assertEqual(expect, actual) |
| |
| def test_delete_missing_response(self): |
| """Check that a backup correctly deletes leftover queues and exchanges that are |
| missing from the initial reponse set.""" |
| # This test is a bit contrived, we set up the situation on backup brokers |
| # and then promote one. |
| cluster = HaCluster(self, 2, promote=False) |
| |
| # cluster[0] Will be the primary |
| s = cluster[0].connect_admin().session() |
| s.sender("q1;{create:always}") |
| s.sender("e1;{create:always, node:{type:topic}}") |
| |
| # cluster[1] will be the backup, has extra queues/exchanges |
| xdecl = "x-declare:{arguments:{'qpid.replicate':'all'}}" |
| node = "node:{%s}"%(xdecl) |
| s = cluster[1].connect_admin().session() |
| s.sender("q1;{create:always, %s}"%(node)) |
| s.sender("q2;{create:always, %s}"%(node)) |
| s.sender("e1;{create:always, node:{type:topic, %s}}"%(xdecl)) |
| s.sender("e2;{create:always, node:{type:topic, %s}}"%(xdecl)) |
| for a in ["q1", "q2", "e1", "e2"]: cluster[1].wait_backup(a) |
| |
| cluster[0].promote() |
| # Verify the backup deletes the surplus queue and exchange |
| cluster[1].wait_status("ready") |
| s = cluster[1].connect_admin().session() |
| self.assertRaises(NotFound, s.receiver, ("q2")); |
| self.assertRaises(NotFound, s.receiver, ("e2")); |
| |
| |
| def test_delete_qpid_4285(self): |
| """Regression test for QPID-4285: on deleting a queue it gets stuck in a |
| partially deleted state and causes replication errors.""" |
| cluster = HaCluster(self,2) |
| s = cluster[0].connect().session() |
| s.receiver("q;{create:always}") |
| cluster[1].wait_backup("q") |
| cluster.kill(0) # Make the backup take over. |
| s = cluster[1].connect().session() |
| s.receiver("q;{delete:always}").close() # Delete q on new primary |
| try: |
| s.receiver("q") |
| self.fail("Expected NotFound exception") # Should not be avaliable |
| except NotFound: pass |
| assert not cluster[1].agent().getQueue("q") # Should not be in QMF |
| |
| def alt_setup(self, session, suffix): |
| # Create exchange to use as alternate and a queue bound to it. |
| # altex exchange: acts as alternate exchange |
| session.sender("altex%s;{create:always,node:{type:topic,x-declare:{type:'fanout'}}}"%(suffix)) |
| # altq queue bound to altex, collect re-routed messages. |
| session.sender("altq%s;{create:always,node:{x-bindings:[{exchange:'altex%s',queue:altq%s}]}}"%(suffix,suffix,suffix)) |
| |
| def test_auto_delete_close(self): |
| """Verify auto-delete queues are deleted on backup if auto-deleted |
| on primary""" |
| cluster=HaCluster(self, 2) |
| p = cluster[0].connect().session() |
| self.alt_setup(p, "1") |
| r = p.receiver("adq1;{create:always,node:{x-declare:{auto-delete:True,alternate-exchange:'altex1'}}}", capacity=1) |
| s = p.sender("adq1") |
| for m in ["aa","bb","cc"]: s.send(m) |
| p.sender("adq2;{create:always,node:{x-declare:{auto-delete:True}}}") |
| cluster[1].wait_queue("adq1") |
| cluster[1].wait_queue("adq2") |
| r.close() # trigger auto-delete of adq1 |
| cluster[1].wait_no_queue("adq1") |
| cluster[1].assert_browse_backup("altq1", ["aa","bb","cc"]) |
| cluster[1].wait_queue("adq2") |
| |
| def test_auto_delete_crash(self): |
| """Verify auto-delete queues are deleted on backup if the primary crashes""" |
| cluster=HaCluster(self, 2) |
| p = cluster[0].connect().session() |
| self.alt_setup(p,"1") |
| |
| # adq1 is subscribed so will be auto-deleted. |
| r = p.receiver("adq1;{create:always,node:{x-declare:{auto-delete:True,alternate-exchange:'altex1'}}}", capacity=1) |
| s = p.sender("adq1") |
| for m in ["aa","bb","cc"]: s.send(m) |
| # adq2 is subscribed after cluster[2] starts. |
| p.sender("adq2;{create:always,node:{x-declare:{auto-delete:True}}}") |
| # adq3 is never subscribed. |
| p.sender("adq3;{create:always,node:{x-declare:{auto-delete:True}}}") |
| |
| cluster.start() |
| cluster[2].wait_status("ready") |
| |
| p.receiver("adq2") # Subscribed after cluster[2] joined |
| |
| for q in ["adq1","adq2","adq3","altq1"]: cluster[1].wait_queue(q) |
| for q in ["adq1","adq2","adq3","altq1"]: cluster[2].wait_queue(q) |
| cluster[0].kill() |
| |
| cluster[1].wait_no_queue("adq1") |
| cluster[1].wait_no_queue("adq2") |
| cluster[1].wait_queue("adq3") |
| |
| cluster[2].wait_no_queue("adq1") |
| cluster[2].wait_no_queue("adq2") |
| cluster[2].wait_queue("adq3") |
| |
| cluster[1].assert_browse_backup("altq1", ["aa","bb","cc"]) |
| cluster[2].assert_browse_backup("altq1", ["aa","bb","cc"]) |
| |
| def test_auto_delete_timeout(self): |
| cluster = HaCluster(self, 2) |
| # Test timeout |
| r1 = cluster[0].connect().session().receiver("q1;{create:always,node:{x-declare:{auto-delete:True,arguments:{'qpid.auto_delete_timeout':1}}}}") |
| # Test special case of timeout = 0 |
| r0 = cluster[0].connect().session().receiver("q0;{create:always,node:{x-declare:{auto-delete:True,arguments:{'qpid.auto_delete_timeout':0}}}}") |
| cluster[1].wait_queue("q0") |
| cluster[1].wait_queue("q1") |
| cluster[0].kill() |
| cluster[1].wait_queue("q1") # Not timed out yet |
| cluster[1].wait_no_queue("q1", timeout=5) # Wait for timeout |
| cluster[1].wait_no_queue("q0", timeout=5) # Wait for timeout |
| |
| def test_alt_exchange_dup(self): |
| """QPID-4349: if a queue has an alterante exchange and is deleted the |
| messages appear twice on the alternate, they are rerouted once by the |
| primary and again by the backup.""" |
| cluster = HaCluster(self,2) |
| |
| # Set up q with alternate exchange altex bound to altq. |
| s = cluster[0].connect().session() |
| s.sender("altex;{create:always,node:{type:topic,x-declare:{type:'fanout'}}}") |
| s.sender("altq;{create:always,node:{x-bindings:[{exchange:'altex',queue:altq}]}}") |
| snd = s.sender("q;{create:always,node:{x-declare:{alternate-exchange:'altex'}}}") |
| messages = [ str(n) for n in xrange(10) ] |
| for m in messages: snd.send(m) |
| cluster[1].assert_browse_backup("q", messages) |
| s.sender("q;{delete:always}").close() |
| cluster[1].assert_browse_backup("altq", messages) |
| |
| def test_expired(self): |
| """Regression test for QPID-4379: HA does not properly handle expired messages""" |
| # Race between messages expiring and HA replicating consumer. |
| cluster = HaCluster(self, 2) |
| s = cluster[0].connect().session().sender("q;{create:always}", capacity=2) |
| def send_ttl_messages(): |
| for i in xrange(100): s.send(Message(str(i), ttl=0.001), timeout=1) |
| send_ttl_messages() |
| cluster.start() |
| send_ttl_messages() |
| |
| def test_stale_response(self): |
| """Check for race condition where a stale response is processed after an |
| event for the same queue/exchange """ |
| cluster = HaCluster(self, 2) |
| s = cluster[0].connect().session() |
| s.sender("keep;{create:always}") # Leave this queue in place. |
| for i in xrange(1000): |
| s.sender("deleteme%s;{create:always,delete:always}"%(i)).close() |
| # It is possible for the backup to attempt to subscribe after the queue |
| # is deleted. This is not an error, but is logged as an error on the primary. |
| # The backup does not log this as an error so we only check the backup log for errors. |
| self.assert_log_no_errors(cluster[1]) |
| |
| def test_missed_recreate(self): |
| """If a queue or exchange is destroyed and one with the same name re-created |
| while a backup is disconnected, the backup should also delete/recreate |
| the object when it re-connects""" |
| cluster = HaCluster(self, 3) |
| sn = cluster[0].connect().session() |
| # Create a queue with messages |
| s = sn.sender("qq;{create:always}") |
| msgs = [str(i) for i in xrange(3)] |
| for m in msgs: s.send(m) |
| cluster[1].assert_browse_backup("qq", msgs) |
| cluster[2].assert_browse_backup("qq", msgs) |
| # Set up an exchange with a binding. |
| sn.sender("xx;{create:always,node:{type:topic}}") |
| sn.sender("xxq;{create:always,node:{x-bindings:[{exchange:'xx',queue:'xxq',key:xxq}]}}") |
| cluster[1].wait_address("xx") |
| self.assertEqual(cluster[1].agent().getExchange("xx").values["bindingCount"], 1) |
| cluster[2].wait_address("xx") |
| self.assertEqual(cluster[2].agent().getExchange("xx").values["bindingCount"], 1) |
| |
| # Simulate the race by re-creating the objects before promoting the new primary |
| cluster.kill(0, False) |
| xdecl = "x-declare:{arguments:{'qpid.replicate':'all'}}" |
| node = "node:{%s}"%(xdecl) |
| sn = cluster[1].connect_admin().session() |
| sn.sender("qq;{delete:always}").close() |
| s = sn.sender("qq;{create:always, %s}"%(node)) |
| s.send("foo") |
| sn.sender("xx;{delete:always}").close() |
| sn.sender("xx;{create:always,node:{type:topic,%s}}"%(xdecl)) |
| cluster[1].promote() |
| cluster[1].wait_status("active") |
| # Verify we are not still using the old objects on cluster[2] |
| cluster[2].assert_browse_backup("qq", ["foo"]) |
| cluster[2].wait_address("xx") |
| self.assertEqual(cluster[2].agent().getExchange("xx").values["bindingCount"], 0) |
| |
| def test_redeclare_exchange(self): |
| """Ensure that re-declaring an exchange is an HA no-op""" |
| cluster = HaCluster(self, 2) |
| ps = cluster[0].connect().session() |
| ps.sender("ex1;{create:always,node:{type:topic,x-declare:{arguments:{'qpid.replicate':all}, type:'fanout'}}}") |
| ps.sender("ex2;{create:always,node:{type:topic,x-declare:{arguments:{'qpid.replicate':all}, type:'fanout', alternate-exchange:'ex1'}}}") |
| cluster[1].wait_backup("ex1") |
| cluster[1].wait_backup("ex2") |
| |
| # Use old API to re-declare the exchange |
| old_conn = cluster[0].connect_old() |
| old_sess = old_conn.session(str(qpid.datatypes.uuid4())) |
| old_sess.exchange_declare(exchange='ex1', type='fanout') |
| cluster[1].wait_backup("ex1") |
| |
| def fairshare(msgs, limit, levels): |
| """ |
| Generator to return prioritised messages in expected order for a given fairshare limit |
| """ |
| count = 0 |
| last_priority = None |
| postponed = [] |
| while msgs or postponed: |
| if not msgs: |
| msgs = postponed |
| count = 0 |
| last_priority = None |
| postponed = [ ] |
| msg = msgs.pop(0) |
| if last_priority and priority_level(msg.priority, levels) == last_priority: |
| count += 1 |
| else: |
| last_priority = priority_level(msg.priority, levels) |
| count = 1 |
| l = limit(last_priority) |
| if (l and count > l): |
| postponed.append(msg) |
| else: |
| yield msg |
| return |
| |
| def priority_level(value, levels): |
| """ |
| Method to determine which of a distinct number of priority levels |
| a given value falls into. |
| """ |
| offset = 5-math.ceil(levels/2.0) |
| return min(max(value - offset, 0), levels-1) |
| |
| class LongTests(HaBrokerTest): |
| """Tests that can run for a long time if -DDURATION=<minutes> is set""" |
| |
| def duration(self): |
| d = self.config.defines.get("DURATION") |
| if d: return float(d)*60 |
| else: return 3 # Default is to be quick |
| |
| def test_failover_send_receive(self): |
| """Test failover with continuous send-receive""" |
| brokers = HaCluster(self, 3) |
| |
| # Start sender and receiver threads |
| n = 10 |
| senders = [NumberedSender(brokers[0], max_depth=1024, failover_updates=False, |
| queue="test%s"%(i)) for i in xrange(n)] |
| receivers = [NumberedReceiver(brokers[0], sender=senders[i], |
| failover_updates=False, |
| queue="test%s"%(i)) for i in xrange(n)] |
| for r in receivers: r.start() |
| for s in senders: s.start() |
| |
| def wait_passed(r, n): |
| """Wait for receiver r to pass n""" |
| def check(): |
| r.check() # Verify no exceptions |
| return r.received > n + 100 |
| assert retry(check), "Stalled %s at %s"%(r.queue, n) |
| |
| for r in receivers: wait_passed(r, 0) |
| |
| # Kill and restart brokers in a cycle: |
| endtime = time.time() + self.duration() |
| i = 0 |
| primary = 0 |
| try: |
| while time.time() < endtime or i < 3: # At least 3 iterations |
| # Precondition: All 3 brokers running, |
| # primary = index of promoted primary |
| # one or two backups are running, |
| for s in senders: s.sender.assert_running() |
| for r in receivers: r.receiver.assert_running() |
| checkpoint = [ r.received+100 for r in receivers ] |
| dead = None |
| victim = random.randint(0,2) |
| if victim == primary: |
| # Don't kill primary till it is active and the next |
| # backup is ready, otherwise we can lose messages. |
| brokers[victim].wait_status("active") |
| next = (victim+1)%3 |
| brokers[next].wait_status("ready") |
| brokers.bounce(victim) # Next one is promoted |
| primary = next |
| else: |
| brokers.kill(victim, False) |
| dead = victim |
| |
| # At this point the primary is running with 1 or 2 backups |
| # Make sure we are not stalled |
| map(wait_passed, receivers, checkpoint) |
| # Run another checkpoint to ensure things work in this configuration |
| checkpoint = [ r.received+100 for r in receivers ] |
| map(wait_passed, receivers, checkpoint) |
| |
| if dead is not None: |
| brokers.restart(dead) # Restart backup |
| brokers[dead].ready() |
| dead = None |
| i += 1 |
| except: |
| traceback.print_exc() |
| raise |
| finally: |
| for s in senders: s.stop() |
| for r in receivers: r.stop() |
| unexpected_dead = [] |
| for i in xrange(3): |
| if not brokers[i].is_running() and i != dead: |
| unexpected_dead.append(i) |
| if brokers[i].is_running(): brokers.kill(i, False) |
| if unexpected_dead: |
| raise Exception("Brokers not running: %s"%unexpected_dead) |
| |
| def test_qmf_order(self): |
| """QPID 4402: HA QMF events can be out of order. |
| This test mimics the test described in the JIRA. Two threads repeatedly |
| declare the same auto-delete queue and close their connection. |
| """ |
| broker = Broker(self) |
| class Receiver(Thread): |
| def __init__(self, qname): |
| Thread.__init__(self) |
| self.qname = qname |
| self.stopped = False |
| |
| def run(self): |
| while not self.stopped: |
| self.connection = broker.connect() |
| try: |
| self.connection.session().receiver( |
| self.qname+";{create:always,node:{x-declare:{auto-delete:True}}}") |
| except NotFound: pass # Can occur occasionally, not an error. |
| try: self.connection.close() |
| except: pass |
| |
| class QmfObject(object): |
| """Track existance of an object and validate QMF events""" |
| def __init__(self, type_name, name_field, name): |
| self.type_name, self.name_field, self.name = type_name, name_field, name |
| self.exists = False |
| |
| def qmf_event(self, event): |
| content = event.content[0] |
| event_type = content['_schema_id']['_class_name'] |
| values = content['_values'] |
| if event_type == self.type_name+"Declare" and values[self.name_field] == self.name: |
| disp = values['disp'] |
| log.debug("Event %s: disp=%s exists=%s"%( |
| event_type, values['disp'], self.exists)) |
| if self.exists: assert values['disp'] == 'existing' |
| else: assert values['disp'] == 'created' |
| self.exists = True |
| elif event_type == self.type_name+"Delete" and values[self.name_field] == self.name: |
| log.debug("Event %s: exists=%s"%(event_type, self.exists)) |
| assert self.exists |
| self.exists = False |
| |
| # Verify order of QMF events. |
| helper = EventHelper() |
| r = broker.connect().session().receiver(helper.eventAddress()) |
| threads = [Receiver("qq"), Receiver("qq")] |
| for t in threads: t.start() |
| queue = QmfObject("queue", "qName", "qq") |
| finish = time.time() + self.duration() |
| try: |
| while time.time() < finish: |
| queue.qmf_event(r.fetch()) |
| finally: |
| for t in threads: t.stopped = True; t.join() |
| |
| class RecoveryTests(HaBrokerTest): |
| """Tests for recovery after a failure.""" |
| |
| def test_queue_hold(self): |
| """Verify that the broker holds queues without sufficient backup, |
| i.e. does not complete messages sent to those queues.""" |
| |
| l = LogLevel(ERROR) # Hide expected WARNING log messages from failover. |
| try: |
| # We don't want backups to time out for this test, set long timeout. |
| cluster = HaCluster(self, 4, args=["--ha-backup-timeout=120"]); |
| # Wait for the primary to be ready |
| cluster[0].wait_status("active") |
| for b in cluster[1:4]: b.wait_status("ready") |
| # Create a queue before the failure. |
| s1 = cluster.connect(0).session().sender("q1;{create:always}") |
| for b in cluster: b.wait_backup("q1") |
| for i in xrange(100): s1.send(str(i)) |
| |
| # Kill primary and 2 backups |
| cluster[3].wait_status("ready") |
| for i in [0,1,2]: cluster.kill(i, False) |
| cluster[3].promote() # New primary, backups will be 1 and 2 |
| cluster[3].wait_status("recovering") |
| |
| def assertSyncTimeout(s): |
| try: |
| s.sync(timeout=.01) |
| self.fail("Expected Timeout exception") |
| except Timeout: pass |
| |
| # Create a queue after the failure |
| s2 = cluster.connect(3).session().sender("q2;{create:always}") |
| |
| # Verify that messages sent are not completed |
| for i in xrange(100,200): |
| s1.send(str(i), sync=False); |
| s2.send(str(i), sync=False) |
| assertSyncTimeout(s1) |
| self.assertEqual(s1.unsettled(), 100) |
| assertSyncTimeout(s2) |
| self.assertEqual(s2.unsettled(), 100) |
| |
| # Verify we can receive even if sending is on hold: |
| cluster[3].assert_browse("q1", [str(i) for i in range(200)]) |
| |
| # Restart backups, verify queues are released only when both backups are up |
| cluster.restart(1) |
| assertSyncTimeout(s1) |
| self.assertEqual(s1.unsettled(), 100) |
| assertSyncTimeout(s2) |
| self.assertEqual(s2.unsettled(), 100) |
| cluster.restart(2) |
| |
| # Verify everything is up to date and active |
| def settled(sender): sender.sync(timeout=1); return sender.unsettled() == 0; |
| assert retry(lambda: settled(s1)), "Unsetttled=%s"%(s1.unsettled()) |
| assert retry(lambda: settled(s2)), "Unsetttled=%s"%(s2.unsettled()) |
| cluster[1].assert_browse_backup("q1", [str(i) for i in range(100)+range(100,200)]) |
| cluster[1].assert_browse_backup("q2", [str(i) for i in range(100,200)]) |
| cluster[3].wait_status("active"), |
| s1.session.connection.close() |
| s2.session.connection.close() |
| finally: l.restore() |
| |
| def test_expected_backup_timeout(self): |
| """Verify that we time-out expected backups and release held queues |
| after a configured interval. Verify backup is demoted to catch-up, |
| but can still rejoin. |
| """ |
| cluster = HaCluster(self, 3, args=["--ha-backup-timeout=0.5"]); |
| cluster[0].wait_status("active") # Primary ready |
| for b in cluster[1:3]: b.wait_status("ready") # Backups ready |
| for i in [0,1]: cluster.kill(i, False) |
| cluster[2].promote() # New primary, backups will be 1 and 2 |
| cluster[2].wait_status("recovering") |
| # Should not go active till the expected backup connects or times out. |
| self.assertEqual(cluster[2].ha_status(), "recovering") |
| # Messages should be held expected backup times out |
| s = cluster[2].connect().session().sender("q;{create:always}") |
| for i in xrange(100): s.send(str(i), sync=False) |
| # Verify message held initially. |
| try: s.sync(timeout=.01); self.fail("Expected Timeout exception") |
| except Timeout: pass |
| s.sync(timeout=1) # And released after the timeout. |
| self.assertEqual(cluster[2].ha_status(), "active") |
| |
| def test_join_ready_cluster(self): |
| """If we join a cluster where the primary is dead, the new primary is |
| not yet promoted and there are ready backups then we should refuse |
| promotion so that one of the ready backups can be chosen.""" |
| # FIXME aconway 2012-10-05: smaller timeout |
| cluster = HaCluster(self, 2, args=["--link-heartbeat-interval", 1]) |
| cluster[0].wait_status("active") |
| cluster[1].wait_status("ready") |
| cluster.bounce(0, promote_next=False) |
| self.assertRaises(Exception, cluster[0].promote) |
| os.kill(cluster[1].pid, signal.SIGSTOP) # Test for timeout if unresponsive. |
| cluster.bounce(0, promote_next=False) |
| cluster[0].promote() |
| |
| |
| class ConfigurationTests(HaBrokerTest): |
| """Tests for configuration settings.""" |
| |
| def test_client_broker_url(self): |
| """Check that setting of broker and public URLs obeys correct defaulting |
| and precedence""" |
| |
| def check(broker, brokers, public): |
| qmf = broker.qmf() |
| self.assertEqual(brokers, qmf.brokersUrl) |
| self.assertEqual(public, qmf.publicUrl) |
| |
| def start(brokers, public, known=None): |
| args=[] |
| if brokers: args.append("--ha-brokers-url="+brokers) |
| if public: args.append("--ha-public-url="+public) |
| if known: args.append("--known-hosts-url="+known) |
| return HaBroker(self, args=args) |
| |
| # Both set explictily, no defaulting |
| b = start("foo:123", "bar:456") |
| check(b, "amqp:tcp:foo:123", "amqp:tcp:bar:456") |
| b.set_brokers_url("foo:999") |
| check(b, "amqp:tcp:foo:999", "amqp:tcp:bar:456") |
| b.set_public_url("bar:999") |
| check(b, "amqp:tcp:foo:999", "amqp:tcp:bar:999") |
| |
| # Allow "none" to mean "not set" |
| b = start("none", "none") |
| check(b, "", "") |
| |
| if __name__ == "__main__": |
| shutil.rmtree("brokertest.tmp", True) |
| qpid_ha = os.getenv("QPID_HA_EXEC") |
| if qpid_ha and os.path.exists(qpid_ha): |
| os.execvp("qpid-python-test", |
| ["qpid-python-test", "-m", "ha_tests"] + sys.argv[1:]) |
| else: |
| print "Skipping ha_tests, %s not available"%(qpid_ha) |
| |
