Examples with MembershipListener com.hazelcast.core.MembershipListener used on opensource projects

Example 1 with MembershipListener

use of com.hazelcast.core.MembershipListener in project hazelcast by hazelcast.

the class ClusterMembershipTest method testRemoveMembershipListener.

@Test
public void testRemoveMembershipListener() {
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
    HazelcastInstance hz1 = factory.newHazelcastInstance();
    Cluster cluster = hz1.getCluster();
    MembershipListener membershipListener = mock(MembershipListener.class);
    String id = cluster.addMembershipListener(membershipListener);
    boolean removed = cluster.removeMembershipListener(id);
    assertTrue(removed);
    // now we add a member
    HazelcastInstance hz2 = factory.newHazelcastInstance();
    // and verify that the listener isn't called.
    verify(membershipListener, never()).memberAdded(any(MembershipEvent.class));
}

Example 2 with MembershipListener

use of com.hazelcast.core.MembershipListener in project hazelcast by hazelcast.

the class SplitBrainHandlerTest method testMergeAfterSplitBrain.

private void testMergeAfterSplitBrain(boolean multicast) throws InterruptedException {
    String groupName = generateRandomString(10);
    Config config = new Config();
    config.setProperty(GroupProperty.MERGE_FIRST_RUN_DELAY_SECONDS.getName(), "5");
    config.setProperty(GroupProperty.MERGE_NEXT_RUN_DELAY_SECONDS.getName(), "3");
    config.getGroupConfig().setName(groupName);
    NetworkConfig networkConfig = config.getNetworkConfig();
    JoinConfig join = networkConfig.getJoin();
    join.getMulticastConfig().setEnabled(multicast);
    join.getTcpIpConfig().setEnabled(!multicast);
    join.getTcpIpConfig().addMember("127.0.0.1");
    HazelcastInstance h1 = Hazelcast.newHazelcastInstance(config);
    HazelcastInstance h2 = Hazelcast.newHazelcastInstance(config);
    HazelcastInstance h3 = Hazelcast.newHazelcastInstance(config);
    final CountDownLatch splitLatch = new CountDownLatch(2);
    h3.getCluster().addMembershipListener(new MembershipListener() {

        @Override
        public void memberAdded(MembershipEvent membershipEvent) {
        }

        @Override
        public void memberRemoved(MembershipEvent membershipEvent) {
            splitLatch.countDown();
        }

        @Override
        public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) {
        }
    });
    final CountDownLatch mergeLatch = new CountDownLatch(1);
    h3.getLifecycleService().addLifecycleListener(new MergedEventLifeCycleListener(mergeLatch));
    closeConnectionBetween(h1, h3);
    closeConnectionBetween(h2, h3);
    assertTrue(splitLatch.await(10, TimeUnit.SECONDS));
    assertEquals(2, h1.getCluster().getMembers().size());
    assertEquals(2, h2.getCluster().getMembers().size());
    assertEquals(1, h3.getCluster().getMembers().size());
    assertTrue(mergeLatch.await(30, TimeUnit.SECONDS));
    assertEquals(3, h1.getCluster().getMembers().size());
    assertEquals(3, h2.getCluster().getMembers().size());
    assertEquals(3, h3.getCluster().getMembers().size());
    assertEquals(ACTIVE, h1.getCluster().getClusterState());
    assertEquals(ACTIVE, h2.getCluster().getClusterState());
    assertEquals(ACTIVE, h3.getCluster().getClusterState());
}

Example 3 with MembershipListener

use of com.hazelcast.core.MembershipListener in project hazelcast by hazelcast.

the class QueueAdvancedTest method testDeadTaker.

/**
     * Test for issue 730 (Google).
     */
@Test
public void testDeadTaker() throws Exception {
    Config config = new Config();
    final CountDownLatch shutdownLatch = new CountDownLatch(1);
    config.addListenerConfig(new ListenerConfig().setImplementation(new MembershipListener() {

        @Override
        public void memberAdded(MembershipEvent membershipEvent) {
        }

        @Override
        public void memberRemoved(MembershipEvent membershipEvent) {
            shutdownLatch.countDown();
        }

        @Override
        public void memberAttributeChanged(MemberAttributeEvent memberAttributeEvent) {
        }
    }));
    TestHazelcastInstanceFactory factory = createHazelcastInstanceFactory(2);
    HazelcastInstance[] instances = factory.newInstances(config);
    final HazelcastInstance h1 = instances[0];
    final HazelcastInstance h2 = instances[1];
    warmUpPartitions(h1, h2);
    final IQueue<String> q1 = h1.getQueue("default");
    final IQueue<String> q2 = h2.getQueue("default");
    final CountDownLatch startLatch = new CountDownLatch(1);
    new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                assertTrue("Expected startLatch.await() to succeed within 10 seconds", startLatch.await(10, SECONDS));
                Thread.sleep(5000);
                h2.getLifecycleService().terminate();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }).start();
    new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                startLatch.countDown();
                String value = q2.take();
                fail("Should not be able to take value from queue, but got: " + value);
            } catch (HazelcastInstanceNotActiveException e) {
                EmptyStatement.ignore(e);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }).start();
    assertTrue("Expected shutdownLatch.await() to succeed within 1 minute", shutdownLatch.await(1, MINUTES));
    q1.offer("item");
    assertEquals(1, q1.size());
    assertEquals("item", q1.poll());
}

Example 4 with MembershipListener

use of com.hazelcast.core.MembershipListener in project hazelcast by hazelcast.

the class ClientMemberAttributeTest method testRemoveAttributes.

@Test(timeout = 120000)
public void testRemoveAttributes() throws Exception {
    Config c = new Config();
    JoinConfig join = c.getNetworkConfig().getJoin();
    join.getTcpIpConfig().addMember("127.0.0.1").setEnabled(true);
    join.getMulticastConfig().setEnabled(false);
    HazelcastInstance h1 = hazelcastFactory.newHazelcastInstance(c);
    Member m1 = h1.getCluster().getLocalMember();
    m1.setIntAttribute("Test", 123);
    HazelcastInstance h2 = hazelcastFactory.newHazelcastInstance(c);
    assertEquals(2, h2.getCluster().getMembers().size());
    Member member = null;
    for (Member m : h2.getCluster().getMembers()) {
        if (m == h2.getCluster().getLocalMember()) {
            continue;
        }
        member = m;
    }
    assertNotNull(member);
    assertEquals(m1, member);
    assertNotNull(member.getIntAttribute("Test"));
    assertEquals(123, (int) member.getIntAttribute("Test"));
    HazelcastInstance client = hazelcastFactory.newHazelcastClient();
    final CountDownLatch latch = new CountDownLatch(3);
    final MembershipListener listener = new LatchMembershipListener(latch);
    h2.getCluster().addMembershipListener(listener);
    h1.getCluster().addMembershipListener(listener);
    client.getCluster().addMembershipListener(listener);
    m1.removeAttribute("Test");
    // Force sleep to distribute value
    assertOpenEventually(latch);
    assertNull(member.getIntAttribute("Test"));
    boolean found = false;
    Collection<Member> members = client.getCluster().getMembers();
    for (Member m : members) {
        if (m.equals(m1)) {
            assertNull(m.getIntAttribute("Test"));
            found = true;
        }
    }
    assertTrue(found);
}

Example 5 with MembershipListener

use of com.hazelcast.core.MembershipListener in project hazelcast by hazelcast.

the class ClientMemberAttributeTest method testChangeAttributes.

@Test(timeout = 120000)
public void testChangeAttributes() throws Exception {
    Config c = new Config();
    JoinConfig join = c.getNetworkConfig().getJoin();
    join.getTcpIpConfig().addMember("127.0.0.1").setEnabled(true);
    join.getMulticastConfig().setEnabled(false);
    HazelcastInstance h1 = hazelcastFactory.newHazelcastInstance(c);
    Member m1 = h1.getCluster().getLocalMember();
    m1.setIntAttribute("Test", 123);
    HazelcastInstance h2 = hazelcastFactory.newHazelcastInstance(c);
    assertEquals(2, h2.getCluster().getMembers().size());
    Member member = null;
    for (Member m : h2.getCluster().getMembers()) {
        if (m == h2.getCluster().getLocalMember()) {
            continue;
        }
        member = m;
    }
    assertNotNull(member);
    assertEquals(m1, member);
    assertNotNull(member.getIntAttribute("Test"));
    assertEquals(123, (int) member.getIntAttribute("Test"));
    HazelcastInstance client = hazelcastFactory.newHazelcastClient();
    final CountDownLatch latch = new CountDownLatch(3);
    final MembershipListener listener = new LatchMembershipListener(latch);
    h2.getCluster().addMembershipListener(listener);
    h1.getCluster().addMembershipListener(listener);
    client.getCluster().addMembershipListener(listener);
    m1.setIntAttribute("Test", 321);
    // Force sleep to distribute value
    assertOpenEventually(latch);
    assertNotNull(member.getIntAttribute("Test"));
    assertEquals(321, (int) member.getIntAttribute("Test"));
    boolean found = false;
    Collection<Member> members = client.getCluster().getMembers();
    for (Member m : members) {
        if (m.equals(m1)) {
            assertEquals(321, (int) m.getIntAttribute("Test"));
            found = true;
        }
    }
    assertTrue(found);
}