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/*
* SonarQube
* Copyright (C) 2009-2025 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.application.cluster;
import com.google.common.collect.ImmutableMap;
import com.hazelcast.cluster.Address;
import com.hazelcast.cluster.Cluster;
import com.hazelcast.cluster.Member;
import com.hazelcast.cluster.MemberSelector;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.locks.Lock;
import java.util.function.Consumer;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.sonar.application.config.TestAppSettings;
import org.sonar.process.cluster.hz.DistributedAnswer;
import org.sonar.process.cluster.hz.DistributedCall;
import org.sonar.process.cluster.hz.DistributedCallback;
import org.sonar.process.cluster.hz.DistributedReference;
import org.sonar.process.cluster.hz.HazelcastMember;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.verifyNoMoreInteractions;
import static org.mockito.Mockito.when;
import static org.sonar.process.ProcessProperties.Property.CLUSTER_HZ_HOSTS;
public class AppNodesClusterHostsConsistencyTest {
@SuppressWarnings("unchecked")
private final Consumer<String> logger = mock(Consumer.class);
@Before
@After
public void setUp() {
AppNodesClusterHostsConsistency.clearInstance();
}
@Test
public void log_warning_if_configured_hosts_are_not_consistent() throws UnknownHostException {
Map<Member, List<String>> hostsPerMember = new LinkedHashMap<>();
Member m1 = newLocalHostMember(1, true);
Member m2 = newLocalHostMember(2);
Member m3 = newLocalHostMember(3);
hostsPerMember.put(m2, Arrays.asList("1.1.1.1:1000", "1.1.1.1:2000"));
hostsPerMember.put(m3, Arrays.asList("1.1.1.1:1000", "1.1.1.2:1000"));
TestAppSettings settings = new TestAppSettings(ImmutableMap.of(CLUSTER_HZ_HOSTS.getKey(), "1.1.1.1:1000,1.1.1.1:2000,1.1.1.2:1000"));
TestHazelcastMember member = new TestHazelcastMember(hostsPerMember, m1);
AppNodesClusterHostsConsistency underTest = AppNodesClusterHostsConsistency.setInstance(member, settings, logger);
underTest.check();
verify(logger).accept("The configuration of the current node doesn't match the list of hosts configured in the application nodes that have already joined the cluster:\n" +
m1.getAddress().getHost() + ":" + m1.getAddress().getPort() + " : [1.1.1.1:1000, 1.1.1.1:2000, 1.1.1.2:1000] (current)\n" +
m2.getAddress().getHost() + ":" + m2.getAddress().getPort() + " : [1.1.1.1:1000, 1.1.1.1:2000]\n" +
m3.getAddress().getHost() + ":" + m3.getAddress().getPort() + " : [1.1.1.1:1000, 1.1.1.2:1000]\n" +
"Make sure the configuration is consistent among all application nodes before you restart any node");
verifyNoMoreInteractions(logger);
}
@Test
public void dont_log_if_configured_hosts_are_consistent() throws UnknownHostException {
Map<Member, List<String>> hostsPerMember = new LinkedHashMap<>();
Member m1 = newLocalHostMember(1, true);
Member m2 = newLocalHostMember(2);
Member m3 = newLocalHostMember(3);
hostsPerMember.put(m2, Arrays.asList("1.1.1.1:1000", "1.1.1.1:2000", "1.1.1.2:1000"));
hostsPerMember.put(m3, Arrays.asList("1.1.1.1:1000", "1.1.1.1:2000", "1.1.1.2:1000"));
TestAppSettings settings = new TestAppSettings(ImmutableMap.of(CLUSTER_HZ_HOSTS.getKey(), "1.1.1.1:1000,1.1.1.1:2000,1.1.1.2:1000"));
TestHazelcastMember member = new TestHazelcastMember(hostsPerMember, m1);
AppNodesClusterHostsConsistency underTest = AppNodesClusterHostsConsistency.setInstance(member, settings, logger);
underTest.check();
verifyNoMoreInteractions(logger);
}
@Test
public void setInstance_fails_with_ISE_when_called_twice_with_same_arguments() throws UnknownHostException {
TestHazelcastMember member = new TestHazelcastMember(Collections.emptyMap(), newLocalHostMember(1, true));
TestAppSettings settings = new TestAppSettings();
AppNodesClusterHostsConsistency.setInstance(member, settings);
assertThatThrownBy(() -> AppNodesClusterHostsConsistency.setInstance(member, settings))
.isInstanceOf(IllegalStateException.class)
.hasMessage("Instance is already set");
}
@Test
public void setInstance_fails_with_ISE_when_called_twice_with_other_arguments() throws UnknownHostException {
TestHazelcastMember member1 = new TestHazelcastMember(Collections.emptyMap(), newLocalHostMember(1, true));
TestHazelcastMember member2 = new TestHazelcastMember(Collections.emptyMap(), newLocalHostMember(2, true));
AppNodesClusterHostsConsistency.setInstance(member1, new TestAppSettings());
assertThatThrownBy(() -> AppNodesClusterHostsConsistency.setInstance(member2, new TestAppSettings()))
.isInstanceOf(IllegalStateException.class)
.hasMessage("Instance is already set");
}
private Member newLocalHostMember(int port) throws UnknownHostException {
return newLocalHostMember(port, false);
}
private Member newLocalHostMember(int port, boolean localMember) throws UnknownHostException {
Member member = mock(Member.class);
when(member.localMember()).thenReturn(localMember);
Address address1 = new Address(InetAddress.getLocalHost(), port);
when(member.getAddress()).thenReturn(address1);
return member;
}
private static class TestHazelcastMember implements HazelcastMember {
private final Map<Member, List<String>> hostsPerMember;
private final Cluster cluster = mock(Cluster.class);
private TestHazelcastMember(Map<Member, List<String>> hostsPerMember, Member localMember) {
this.hostsPerMember = hostsPerMember;
when(cluster.getLocalMember()).thenReturn(localMember);
}
@Override
public <E> DistributedReference<E> getAtomicReference(String name) {
throw new IllegalStateException("not expected to be called");
}
@Override
public <K, V> Map<K, V> getReplicatedMap(String name) {
throw new IllegalStateException("not expected to be called");
}
@Override
public UUID getUuid() {
throw new IllegalStateException("not expected to be called");
}
@Override
public Set<UUID> getMemberUuids() {
throw new IllegalStateException("not expected to be called");
}
@Override
public Lock getLock(String name) {
throw new IllegalStateException("not expected to be called");
}
@Override
public long getClusterTime() {
throw new IllegalStateException("not expected to be called");
}
@Override
public Cluster getCluster() {
return cluster;
}
@Override
public <T> DistributedAnswer<T> call(DistributedCall<T> callable, MemberSelector memberSelector, long timeoutMs) {
throw new IllegalStateException("not expected to be called");
}
@Override
public <T> void callAsync(DistributedCall<T> callable, MemberSelector memberSelector, DistributedCallback<T> callback) {
callback.onComplete((Map<Member, T>) hostsPerMember);
}
@Override
public void close() {
}
}
}
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