-
Notifications
You must be signed in to change notification settings - Fork 912
/
DNSSwitchTest.java
1059 lines (843 loc) · 42 KB
/
DNSSwitchTest.java
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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* 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.
*/
package org.apache.activemq.artemis.tests.smoke.dnsswitch;
import javax.jms.Connection;
import javax.jms.MessageConsumer;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.InetSocketAddress;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.Properties;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.activemq.artemis.api.config.ActiveMQDefaultConfiguration;
import org.apache.activemq.artemis.api.core.TransportConfiguration;
import org.apache.activemq.artemis.api.core.management.ActiveMQServerControl;
import org.apache.activemq.artemis.api.core.management.ObjectNameBuilder;
import org.apache.activemq.artemis.core.client.impl.Topology;
import org.apache.activemq.artemis.core.client.impl.TopologyMemberImpl;
import org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnectorFactory;
import org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory;
import org.apache.activemq.artemis.tests.smoke.common.SmokeTestBase;
import org.apache.activemq.artemis.util.ServerUtil;
import org.apache.activemq.artemis.utils.SpawnedVMSupport;
import org.apache.activemq.artemis.utils.Wait;
import org.apache.activemq.artemis.utils.network.NetUtil;
import org.apache.activemq.artemis.utils.network.NetUtilResource;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Assume;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.invoke.MethodHandles;
/**
* Validating connection retry scenarios where the DNS had changes
*/
public class DNSSwitchTest extends SmokeTestBase {
public static final File ETC_HOSTS = new File("/etc/hosts");
private static final String JMX_SERVER_HOSTNAME = "localhost";
private static final int JMX_SERVER_PORT_0 = 10099;
private static final int JMX_SERVER_PORT_1 = 10199;
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private static final String SERVER_NAME_0 = "dnsswitch";
private static final String SERVER_NAME_1 = "dnsswitch2";
private static final String SERVER_STANDARD = "standard";
private static final String SERVER_LIVE = "dnsswitch-replicated-main";
private static final String SERVER_LIVE_NORETRYDNS = "dnsswitch-replicated-main-noretrydns";
private static final String SERVER_BACKUP = "dnsswitch-replicated-backup";
private static final String SERVER_LIVE_PING = "dnsswitch-replicated-main-withping";
private static final String SERVER_BACKUP_PING = "dnsswitch-replicated-backup-withping";
// 192.0.2.0 is reserved for documentation (and testing on this case).
private static final String FIRST_IP = "192.0.2.0";
private static final String SECOND_IP = "192.0.3.0";
private static final String THIRD_IP = "192.0.3.0";
private static final String FOURTH_IP = "192.0.4.0";
private static final String INVALID_IP = "203.0.113.0";
private static final String hostsFile = System.getProperty("jdk.net.hosts.file");
static String liveURI = "service:jmx:rmi:///jndi/rmi://" + JMX_SERVER_HOSTNAME + ":" + JMX_SERVER_PORT_0 + "/jmxrmi";
static String backupURI = "service:jmx:rmi:///jndi/rmi://" + JMX_SERVER_HOSTNAME + ":" + JMX_SERVER_PORT_1 + "/jmxrmi";
static ObjectNameBuilder liveNameBuilder = ObjectNameBuilder.create(ActiveMQDefaultConfiguration.getDefaultJmxDomain(), "live", true);
static ObjectNameBuilder backupNameBuilder = ObjectNameBuilder.create(ActiveMQDefaultConfiguration.getDefaultJmxDomain(), "backup", true);
private static boolean USING_SPAWN = true;
private static File ETC_BACKUP;
// This is a more intrusive option to use with JDK 8
// Instead of using a separate jdk hsots, which is not supported on jdk8,
// with this option set to true we would use the original /etc/hosts
private static boolean USE_ETC_HOSTS = System.getProperty("java.version").startsWith("1.8");
private static String serverLocation;
@Rule
public NetUtilResource netUtilResource = new NetUtilResource();
@BeforeClass
public static void beforeClassMethod() throws Exception {
NetUtil.skipIfNotSupportedOS();
if (USE_ETC_HOSTS) {
if (!ETC_HOSTS.canWrite()) {
System.out.println("If you want to run this test, you must do 'sudo chmod 666 " + ETC_HOSTS);
}
Assume.assumeTrue("If you want to run this test, you must do 'sudo chmod 666 " + ETC_HOSTS + "'", ETC_HOSTS.canWrite());
} else {
NetUtil.skipIfNotSudo();
}
serverLocation = getServerLocation(SERVER_NAME_0);
// Before anything we must copy the jave security and change what we need for no cache
// this will be used to spawn new tests
generateNoCacheSecurity(serverLocation);
generateNoRetrySecurity(serverLocation);
if (USE_ETC_HOSTS) {
Assert.assertTrue("If you want to run this test, you must do 'sudo chmod 666 " + ETC_HOSTS + "'", ETC_HOSTS.canWrite());
File tmpDirectory = new File(System.getProperty("java.io.tmpdir"));
ETC_BACKUP = new File(tmpDirectory, "etcHostsBackup");
if (!ETC_BACKUP.exists()) {
Files.copy(ETC_HOSTS.toPath(), ETC_BACKUP.toPath(), StandardCopyOption.COPY_ATTRIBUTES);
}
}
}
private static File getETCBackup() {
if (ETC_BACKUP == null) {
File tmpDirectory = new File(System.getProperty("java.io.tmpdir"));
ETC_BACKUP = new File(tmpDirectory, "etcHostsBackup");
}
Assert.assertTrue(ETC_BACKUP.exists());
return ETC_BACKUP;
}
@AfterClass
public static void afterClassMethod() throws Exception {
if (USE_ETC_HOSTS && ETC_BACKUP != null) {
Assert.assertTrue(ETC_BACKUP.exists());
try {
recoverETCHosts();
} finally {
ETC_BACKUP.delete();
ETC_BACKUP = null;
}
}
}
private static void recoverETCHosts() throws IOException {
// it seems silly to use a FileInputStream / FileOutputStream to copy
// a file these days, but on this case we have authorization to write on the file
// but not to replace the file in any way.
// So, Files.copy is not acceptable.
// I could use a library that was doing the same here
// but I didn't bother about it and simply went to the simplest way possible
FileInputStream inputStream = new FileInputStream(getETCBackup());
FileOutputStream outputStream = new FileOutputStream(ETC_HOSTS);
byte[] buffer = new byte[4 * 1024];
int bytes;
try {
while ((bytes = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, bytes);
}
} finally {
inputStream.close();
outputStream.close();
}
}
private static void generateNoCacheSecurity(String serverLocation) throws Exception {
File outputSecurity = new File(serverLocation + File.separator + "etc" + File.separator + "zerocache.security");
generateSecurity(outputSecurity, "networkaddress.cache.ttl", "0", "networkaddress.cache.negative.ttl", "0");
}
private static void generateNoRetrySecurity(String serverLocation) throws Exception {
File outputSecurity = new File(serverLocation + File.separator + "etc" + File.separator + "noretrydns.security");
generateSecurity(outputSecurity, "networkaddress.cache.ttl", "-1", "networkaddress.cache.negative.ttl", "-1");
}
private static void generateSecurity(File outputSecurity, String... overrideParameters) throws IOException {
Assert.assertTrue("You must send pairs as overrideParameters", overrideParameters.length % 2 == 0);
String javaVersion = System.getProperty("java.version");
File security;
if (javaVersion.startsWith("1.8")) {
security = new File(System.getProperty("java.home") + File.separator + "lib" + File.separator + "security" + File.separator + "java.security");
} else {
security = new File(System.getProperty("java.home") + File.separator + "conf" + File.separator + "security" + File.separator + "java.security");
}
Properties securityProperties = new Properties();
securityProperties.load(new FileInputStream(security));
for (int i = 0; i < overrideParameters.length; i += 2) {
securityProperties.setProperty(overrideParameters[i], overrideParameters[i + 1]);
}
securityProperties.store(new FileOutputStream(outputSecurity), "# generated by DNSSwitchTest");
}
public static void testBackupRedefinition(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 30_000);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
connectAndWaitBackup();
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
NetUtil.netDown(SECOND_IP, "lo:second", true);
serverBackup.destroyForcibly();
Thread.sleep(1000); // wait some time at least until a reconnection is in place
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
// waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 0);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
connectAndWaitBackup();
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://FIRST:61616?ha=true");
Assert.assertTrue(connectionFactory.getServerLocator().isHA());
Connection connection = connectionFactory.createConnection();
waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 1);
Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
Queue queue = session.createQueue("test");
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("hello"));
session.commit();
NetUtil.netUp(THIRD_IP, "lo:third");
serverLive.destroyForcibly();
Wait.assertTrue(backupControl::isActive);
MessageConsumer consumer = null;
int errors = 0;
while (true) {
try {
consumer = session.createConsumer(queue);
connection.start();
TextMessage message = (TextMessage) consumer.receive(5000);
Assert.assertNotNull(message);
Assert.assertEquals("hello", message.getText());
session.commit();
break;
} catch (Exception e) {
e.printStackTrace();
errors++;
Assert.assertTrue(errors < 20); // I would accept one or two errors, but the code must connect itself
connection.close();
connectionFactory = new ActiveMQConnectionFactory("tcp://SECOND:61716?ha=true");
connection = connectionFactory.createConnection();
connection.start();
session = connection.createSession(true, Session.SESSION_TRANSACTED);
}
}
} finally {
if (serverLive != null) {
serverLive.destroyForcibly();
}
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
}
}
public static void testBackupRedefinition2(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
NetUtil.netUp(THIRD_IP, "lo:third");
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 30_000);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
connectAndWaitBackup();
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
NetUtil.netDown(SECOND_IP, "lo:second", true);
serverBackup.destroyForcibly();
Thread.sleep(1000); // wait some time at least until a reconnection is in place
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
// waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 0);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
serverBackup.destroyForcibly();
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
connectAndWaitBackup();
backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://FIRST:61616?ha=true");
Assert.assertTrue(connectionFactory.getServerLocator().isHA());
Connection connection = connectionFactory.createConnection();
waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 1);
Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
Queue queue = session.createQueue("test");
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("hello"));
session.commit();
NetUtil.netUp(THIRD_IP, "lo:third");
serverLive.destroyForcibly();
Wait.assertTrue(backupControl::isActive);
MessageConsumer consumer = null;
int errors = 0;
while (true) {
try {
consumer = session.createConsumer(queue);
connection.start();
TextMessage message = (TextMessage) consumer.receive(5000);
Assert.assertNotNull(message);
Assert.assertEquals("hello", message.getText());
session.commit();
break;
} catch (Exception e) {
e.printStackTrace();
errors++;
Assert.assertTrue(errors < 20); // I would accept one or two errors, but the code must connect itself
connection.close();
connectionFactory = new ActiveMQConnectionFactory("tcp://SECOND:61716?ha=true");
connection = connectionFactory.createConnection();
connection.start();
session = connection.createSession(true, Session.SESSION_TRANSACTED);
}
}
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
public static void testBackupRedefinition3(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
NetUtil.netUp(THIRD_IP, "lo:third");
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 30_000);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
connectAndWaitBackup();
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
NetUtil.netDown(SECOND_IP, "lo:second", true);
serverBackup.destroyForcibly();
Thread.sleep(1000); // wait some time at least until a reconnection is in place
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
// waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 0);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
serverBackup.destroyForcibly();
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
connectAndWaitBackup();
backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://FIRST:61616?ha=true");
Assert.assertTrue(connectionFactory.getServerLocator().isHA());
Connection connection = connectionFactory.createConnection();
waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 1);
Session session = connection.createSession(true, Session.SESSION_TRANSACTED);
Queue queue = session.createQueue("test");
MessageProducer producer = session.createProducer(queue);
producer.send(session.createTextMessage("hello"));
session.commit();
NetUtil.netUp(THIRD_IP, "lo:third");
serverLive.destroyForcibly();
Wait.assertTrue(backupControl::isActive);
MessageConsumer consumer = null;
int errors = 0;
while (true) {
try {
consumer = session.createConsumer(queue);
connection.start();
TextMessage message = (TextMessage) consumer.receive(5000);
Assert.assertNotNull(message);
Assert.assertEquals("hello", message.getText());
session.commit();
break;
} catch (Exception e) {
e.printStackTrace();
errors++;
Assert.assertTrue(errors < 20); // I would accept one or two errors, but the code must connect itself
connection.close();
connectionFactory = new ActiveMQConnectionFactory("tcp://SECOND:61616?ha=true");
connection = connectionFactory.createConnection();
connection.start();
session = connection.createSession(true, Session.SESSION_TRANSACTED);
}
}
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
public static void testCantReachBack(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
// notice there's no THIRD_IP anywhere
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 30_000);
ActiveMQServerControl liveControl = getServerControl(liveURI, liveNameBuilder, 20_000);
Wait.assertTrue(liveControl::isStarted);
// notice the first server does not know about this server at all
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
connectAndWaitBackup();
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
public static void testWithPing(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
NetUtil.netUp(THIRD_IP, "lo:third");
// notice there's no THIRD_IP anywhere
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND", THIRD_IP, "PINGPLACE");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 30_000);
ActiveMQServerControl liveControl = getServerControl(liveURI, liveNameBuilder, 20_000);
Wait.assertTrue(liveControl::isStarted);
// notice the first server does not know about this server at all
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
// Removing PINGPLACE from DNS
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND", INVALID_IP, "PINGPLACE");
Wait.assertFalse(liveControl::isStarted);
serverBackup.destroyForcibly();
//Thread.sleep(10_000);
serverLive.destroyForcibly();
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 0);
Thread.sleep(1_000);
logger.debug("going to re-enable ping");
// Enable the address just for ping now
saveConf(hostsFile, THIRD_IP, "PINGPLACE");
liveControl = getServerControl(liveURI, liveNameBuilder, 20_000);
Wait.assertTrue(liveControl::isStarted);
// Waiting some time as to the retry logic to kick in
Thread.sleep(5_000);
// the backup will know about the live, but live doesn't have a direct DNS to backup.. lets see what happens
saveConf(hostsFile, FIRST_IP, "FIRST", THIRD_IP, "PINGPLACE");
boolean ok = false;
for (int i = 0; i < 5; i++) {
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
if (!Wait.waitFor(backupControl::isReplicaSync, 5000, 100)) {
serverBackup.destroyForcibly();
} else {
ok = true;
break;
}
}
Assert.assertTrue(ok);
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
/**
* arg[0] = constant "testWithoutPing" to be used on reflection through main(String arg[])
* arg[1] = serverlive
* arg[2] = server backup
* arg[3] = 1 | 0 (kill the backup = 1, stop the backup = 0);
*
* @param args
* @throws Throwable
*/
public static void testWithoutPing(String[] args) throws Throwable {
boolean killTheBackup = Integer.parseInt(args[3]) == 1;
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
// notice there's no THIRD_IP anywhere
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 0);
ActiveMQServerControl liveControl = getServerControl(liveURI, liveNameBuilder, 20_000);
Wait.assertTrue(liveControl::isStarted);
// notice the first server does not know about this server at all
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
logger.debug("shutdown the Network now");
// this will remove all the DNS information
// I need the pingers to stop responding.
// That will only happen if I stop both devices on Linux.
// On mac that works regardless
NetUtil.netDown(FIRST_IP, "lo:first", false);
NetUtil.netDown(SECOND_IP, "lo:second", false);
saveConf(hostsFile);
Wait.assertTrue(backupControl::isActive);
logger.debug("Starting the network");
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
// I must wait some time for the backup to have a chance to retry here
Thread.sleep(2000);
logger.debug("Going down now");
System.out.println("*******************************************************************************************************************************");
System.out.println("Forcing backup down and restarting it");
System.out.println("*******************************************************************************************************************************");
if (killTheBackup) {
serverBackup.destroyForcibly();
} else {
String serverLocation = args[2];
stopServerWithFile(serverLocation);
Assert.assertTrue(serverBackup.waitFor(10, TimeUnit.SECONDS));
}
cleanupData(SERVER_BACKUP);
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
private static void connectAndWaitBackup() throws Exception {
ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("tcp://FIRST:61616?ha=true");
Assert.assertTrue(connectionFactory.getServerLocator().isHA());
Connection connection = connectionFactory.createConnection();
waitForTopology(connectionFactory.getServerLocator().getTopology(), 60_000, 1, 1);
connection.close();
}
public static void testFailoverDifferentIPRedefinition(String[] arg) throws Throwable {
NetUtil.netUp(FIRST_IP);
NetUtil.netUp(SECOND_IP);
saveConf(hostsFile, FIRST_IP, "test");
Process server = null;
Process server2 = null;
try {
server = ServerUtil.startServer(arg[1], "original-server", "tcp://test:61616", 5000);
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://test:61616?initialConnectAttempts=500&retryInterval=100&connect-timeout-millis=100&reconnectAttempts=500&connectionTTL=1000");
Connection connection = factory.createConnection();
server.destroyForcibly();
NetUtil.netDown(FIRST_IP, true);
CountDownLatch latchConnect = new CountDownLatch(1);
AtomicInteger errors = new AtomicInteger(0);
Thread connecting = new Thread(() -> {
try {
latchConnect.countDown();
Connection connection2 = factory.createConnection();
connection2.close();
} catch (Exception e) {
e.printStackTrace();
errors.incrementAndGet();
}
});
connecting.start();
Assert.assertTrue(latchConnect.await(5, TimeUnit.SECONDS));
Thread.sleep(500);
server = ServerUtil.startServer(arg[2], "new-server", "tcp://" + SECOND_IP + ":61616", 5000);
saveConf(hostsFile, SECOND_IP, "test");
connecting.join(5000);
Assert.assertFalse(connecting.isAlive());
Assert.assertEquals(0, errors.get());
} finally {
if (server != null)
server.destroyForcibly();
if (server2 != null)
server2.destroyForcibly();
}
}
// called with reflection
public static void testInitialConnector(String... arg) throws Throwable {
saveConf(hostsFile, "192.0.0.3", "test");
validateIP("test", "192.0.0.3");
AtomicInteger errors = new AtomicInteger(0);
CountDownLatch initialConnectTried = new CountDownLatch(1);
ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("tcp://test:61616?initialConnectAttempts=500&retryInterval=100&connect-timeout-millis=100");
Thread connecting = new Thread(() -> {
try {
initialConnectTried.countDown();
Connection connection = factory.createConnection();
connection.close();
} catch (Exception e) {
e.printStackTrace();
errors.incrementAndGet();
}
});
connecting.start();
Assert.assertTrue(initialConnectTried.await(10, TimeUnit.SECONDS));
Thread.sleep(1000);
saveConf(hostsFile, "127.0.0.1", "test");
validateIP("test", "127.0.0.1");
connecting.join(10_000);
Connection connection = factory.createConnection();
connection.close();
Assert.assertEquals(0, errors.get());
Assert.assertFalse(connecting.isAlive());
}
// called with reflection
public static void testSimpleResolution(String[] arg) throws Throwable {
// This is just to validate the DNS hosts is picking up the right host
saveConf(hostsFile, "192.0.0.1", "test");
validateIP("test", "192.0.0.1");
// and it should not cache anything if the right properties are in place
saveConf(hostsFile, "192.0.0.3", "test");
validateIP("test", "192.0.0.3");
}
/**
* arg[0] = constant "testSplitBrainDetection" to be used on reflection through main(String arg[])
* arg[1] = serverlive
* arg[2] = server backup
*/
public static void testSplitBrainDetection(String[] args) throws Throwable {
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
// notice there's no THIRD_IP anywhere
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
Process serverLive = null;
Process serverBackup = null;
try {
serverLive = ServerUtil.startServer(args[1], "live", "tcp://FIRST:61616", 0);
ActiveMQServerControl liveControl = getServerControl(liveURI, liveNameBuilder, 20_000);
Wait.assertTrue(liveControl::isStarted);
// notice the first server does not know about this server at all
serverBackup = ServerUtil.startServer(args[2], "backup", "tcp://SECOND:61716", 0);
ActiveMQServerControl backupControl = getServerControl(backupURI, backupNameBuilder, 20_000);
Wait.assertTrue(backupControl::isStarted);
Wait.assertTrue(backupControl::isReplicaSync);
logger.debug("shutdown the Network now");
// this will remove all the DNS information
// I need the pingers to stop responding.
// That will only happen if I stop both devices on Linux.
// On mac that works regardless
NetUtil.netDown(FIRST_IP, "lo:first", false);
NetUtil.netDown(SECOND_IP, "lo:second", false);
saveConf(hostsFile);
Wait.assertTrue(backupControl::isActive);
logger.debug("Starting the network");
NetUtil.netUp(FIRST_IP, "lo:first");
NetUtil.netUp(SECOND_IP, "lo:second");
saveConf(hostsFile, FIRST_IP, "FIRST", SECOND_IP, "SECOND");
logger.debug("Waiting until live is not replicated anymore");
Wait.assertTrue(() -> !liveControl.isReplicaSync());
logger.debug("Waiting enough to let live spread its topology around");
try (ActiveMQConnectionFactory firstCf = new ActiveMQConnectionFactory("tcp://FIRST:61616?ha=false");
Connection ignored = firstCf.createConnection()) {
waitForTopology(firstCf.getServerLocator().getTopology(), 60_000, 1, 1);
final Topology topology = firstCf.getServerLocator().getTopology();
final TopologyMemberImpl member = topology.getMember(liveControl.getNodeID());
Assert.assertNotNull(member.getBackup());
Assert.assertNotNull(member.getLive());
final TransportConfiguration live = member.getLive();
Assert.assertEquals("artemis", live.getName());
Assert.assertEquals(NettyConnectorFactory.class.getName(), live.getFactoryClassName());
Assert.assertEquals("FIRST", live.getParams().get("host"));
Assert.assertEquals("61616", live.getParams().get("port"));
final TransportConfiguration backup = member.getBackup();
Assert.assertEquals("artemis", backup.getName());
Assert.assertEquals(NettyConnectorFactory.class.getName(), backup.getFactoryClassName());
Assert.assertEquals("SECOND", backup.getParams().get("host"));
Assert.assertEquals("61716", backup.getParams().get("port"));
}
try (ActiveMQConnectionFactory secondCf = new ActiveMQConnectionFactory("tcp://SECOND:61716?ha=false");
Connection ignored = secondCf.createConnection()) {
logger.debug("Waiting until second broker topology has just a single live node");
waitForTopology(secondCf.getServerLocator().getTopology(), 60_000, 1, 0);
final Topology topology = secondCf.getServerLocator().getTopology();
final TopologyMemberImpl member = topology.getMember(liveControl.getNodeID());
Assert.assertNull(member.getBackup());
Assert.assertNotNull(member.getLive());
final TransportConfiguration live = member.getLive();
Assert.assertEquals("artemis", live.getName());
Assert.assertEquals(NettyConnectorFactory.class.getName(), live.getFactoryClassName());
Assert.assertEquals("SECOND", live.getParams().get("host"));
Assert.assertEquals("61716", live.getParams().get("port"));
}
} finally {
if (serverBackup != null) {
serverBackup.destroyForcibly();
}
if (serverLive != null) {
serverLive.destroyForcibly();
}
}
}
public static void saveConf(String fileName, String... hostDefinition) throws Exception {
if (USE_ETC_HOSTS) {
recoverETCHosts();
saveConf(ETC_HOSTS, true, hostDefinition);
} else {
saveConf(new File(fileName), false, hostDefinition);
}
}
public static void saveConf(File fileName, boolean append, String... hostDefinition) throws Exception {
PrintWriter writer = new PrintWriter(new FileOutputStream(fileName, append));
Assert.assertTrue("you must send pairs", hostDefinition.length % 2 == 0);
if (USE_ETC_HOSTS) {
writer.println();
writer.println("# this was generated by DNSSwitchTest. Make sure you recover from your backup");
}
for (int i = 0; i < hostDefinition.length; i += 2) {
writer.println(hostDefinition[i] + " " + hostDefinition[i + 1]);
}
writer.close();
}
private static void validateIP(String host, String ip) {
InetSocketAddress inetSocketAddress;
inetSocketAddress = new InetSocketAddress(host, 8080);
// And this is to validate no cache
Assert.assertEquals(ip, inetSocketAddress.getAddress().getHostAddress());
}
// This main method will be used with spawnRun to continue the test on a separate VM
public static void main(String[] arg) throws Throwable {
try {
String methodName = arg[0];
Method methodReflection = DNSSwitchTest.class.getMethod(methodName, arg.getClass());
methodReflection.invoke(null, new Object[]{arg});
if (USING_SPAWN) {
NetUtil.cleanup();
System.exit(1);
}
} catch (InvocationTargetException e) {
e.getCause().printStackTrace();
if (USING_SPAWN) {
NetUtil.cleanup();
System.exit(2);
} else {
throw e;
}
} catch (Throwable e) {
e.printStackTrace();
if (USING_SPAWN) {
NetUtil.cleanup();
System.exit(2);
} else {
throw e;
}
}
}
@Before
public void before() throws Exception {
cleanupData(SERVER_NAME_0);
cleanupData(SERVER_NAME_1);
cleanupData(SERVER_STANDARD);
cleanupData(SERVER_LIVE);
cleanupData(SERVER_LIVE_NORETRYDNS);
cleanupData(SERVER_BACKUP);
cleanupData(SERVER_LIVE_PING);
cleanupData(SERVER_BACKUP_PING);
}
@Test
public void testBackupRedefinition() throws Throwable {
spawnRun(serverLocation, "testBackupRedefinition", getServerLocation(SERVER_LIVE), getServerLocation(SERVER_BACKUP));
}
@Test
public void testBackupRedefinition2() throws Throwable {
spawnRun(serverLocation, "testBackupRedefinition2", getServerLocation(SERVER_LIVE), getServerLocation(SERVER_BACKUP));
}
@Test
public void testBackupRedefinition3() throws Throwable {
spawnRun(serverLocation, "testBackupRedefinition2", getServerLocation(SERVER_LIVE), getServerLocation(SERVER_BACKUP));
}
@Test
public void testCantReachBack() throws Throwable {
spawnRun(serverLocation, "testCantReachBack", getServerLocation(SERVER_LIVE_NORETRYDNS), getServerLocation(SERVER_BACKUP));
}
@Test
public void testWithPing() throws Throwable {
spawnRun(serverLocation, "testWithPing", getServerLocation(SERVER_LIVE_PING), getServerLocation(SERVER_BACKUP_PING));
}
@Test
public void testWithoutPingKill() throws Throwable {
spawnRun(serverLocation, "testWithoutPing", getServerLocation(SERVER_LIVE), getServerLocation(SERVER_BACKUP), "1");
}
@Test
public void testWithoutPingRestart() throws Throwable {
spawnRun(serverLocation, "testWithoutPing", getServerLocation(SERVER_LIVE), getServerLocation(SERVER_BACKUP), "0");
}