Ejemplo n.º 1
0
 private boolean viewContains(View view, JChannel... channels) {
   boolean b = true;
   for (JChannel ch : channels) {
     b = b && view.containsMember(ch.getAddress());
   }
   return b;
 }
Ejemplo n.º 2
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  private void sendMessage() {
    try {
      /**
       * 参数里指定Channel使用的协议栈,如果是空的,则使用默认的协议栈, 位于JGroups包里的udp.xml。参数可以是一个以冒号分隔的字符串,
       * 或是一个XML文件,在XML文件里定义协议栈。
       */
      logger.warn("发送监控同步数据通知");

      Properties prop = SystemPropertiesUtils.getProp();
      String hostName = NetUtils.getLocalHost();
      prop.put("node.ip", NetUtils.getIpByHost(hostName));
      prop.put("node.host", hostName);
      prop.put("install.path", getInstallPath());
      // 创建一个通道
      JChannel channel = new JChannel();
      // 加入一个群
      channel.connect("MonitorContainer");
      // 发送事件
      // 这里的Message的第一个参数是发送端地址
      // 第二个是接收端地址
      // 第三个是发送的字符串
      // 具体参见jgroup send API
      Message msg = new Message(null, null, prop);
      // 发送
      channel.send(msg);
      // 关闭通道
      channel.close();
    } catch (Exception e) {
      logger.error(e.getMessage());
    }
  }
Ejemplo n.º 3
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 public void testSASLDigestMD5() throws Exception {
   a = createChannel("A", "DIGEST-MD5", "jack");
   b = createChannel("B", "DIGEST-MD5", "jack");
   a.connect("SaslTest");
   b.connect("SaslTest");
   assertTrue(b.isConnected());
 }
 public void start(HTableIndexCoprocessor idxCoprocessor) throws Exception {
   this.idxCoprocessor = idxCoprocessor;
   loadConfiguration();
   channel = new JChannel(ClassLoader.getSystemResource("tcp.xml"));
   channel.setReceiver(this);
   channel.connect("MasterIndexUpdateCluster");
 }
Ejemplo n.º 5
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 private boolean checkViewSize(int expectedSize, JChannel... channels) {
   boolean b = true;
   for (JChannel ch : channels) {
     b = b && ch.getView().size() == expectedSize;
   }
   return b;
 }
Ejemplo n.º 6
0
  /**
   * Tests sending 1, 2 (OOB) and 3, where they are received in the order 1, 3, 2. Message 3 should
   * not get delivered until message 4 is received (http://jira.jboss.com/jira/browse/JGRP-780)
   */
  public void testRegularAndOOBUnicasts() throws Exception {
    DISCARD discard = new DISCARD();
    ProtocolStack stack = a.getProtocolStack();
    stack.insertProtocol(discard, ProtocolStack.BELOW, UNICAST.class, UNICAST2.class);

    Address dest = b.getAddress();
    Message m1 = new Message(dest, null, 1);
    Message m2 = new Message(dest, null, 2);
    m2.setFlag(Message.OOB);
    Message m3 = new Message(dest, null, 3);

    MyReceiver receiver = new MyReceiver("C2");
    b.setReceiver(receiver);
    a.send(m1);
    discard.setDropDownUnicasts(1);
    a.send(m2);
    a.send(m3);

    Collection<Integer> list = receiver.getMsgs();
    int count = 10;
    while (list.size() < 3 && --count > 0) {
      Util.sleep(500); // time for potential retransmission
      sendStableMessages(a, b);
    }

    assert list.size() == 3 : "list is " + list;
    assert list.contains(1) && list.contains(2) && list.contains(3);
  }
  @Override
  public void run() {
    try {
      log.info("Hello from Cluster microservice provider!");

      channel = new JChannel((String) context.getProperties().get(CLUSTER_CONFIGURATION));
      channel.setReceiver(receiver);

      channel.connect((String) context.getProperties().get(CLUSTER_GROUP));

      channel.send(new Message(null, "Holáryjou!"));

      try {
        while (!Thread.currentThread().isInterrupted()) {
          Thread.sleep(1000);
        }
      } catch (InterruptedException ie) {
        Utils.shutdownLog(log, ie);
      } finally {
        channel.close();
      }
    } catch (Exception e) {
      log.error("Cluster microservice provider failed: ", e);
    }
  }
Ejemplo n.º 8
0
  /**
   * Constructor 1
   *
   * @param props
   * @param no_channel
   * @param jmx
   * @param use_state
   * @param state_timeout
   * @param use_unicasts
   * @param name
   * @param send_own_state_on_merge
   * @param gen
   * @throws Exception
   */
  public JWhiteBoard(
      String props,
      boolean no_channel,
      boolean jmx,
      boolean use_state,
      long state_timeout,
      boolean use_unicasts,
      String name,
      boolean send_own_state_on_merge,
      AddressGenerator gen)
      throws Exception {
    this.noChannel = no_channel;
    this.jmx = jmx;
    this.useState = use_state;
    this.stateTimeout = state_timeout;
    this.use_unicasts = use_unicasts;
    if (no_channel) return;

    channel = new JChannel(props);
    if (gen != null) channel.addAddressGenerator(gen);
    if (name != null) channel.setName(name);
    channel.setReceiver(this);
    channel.addChannelListener(this);
    this.send_own_state_on_merge = send_own_state_on_merge;
  }
Ejemplo n.º 9
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 /** Creates a singleton view for each channel listed and injects it */
 protected static void createPartition(JChannel... channels) {
   for (JChannel ch : channels) {
     View view = Util.createView(ch.getAddress(), 5, ch.getAddress());
     GMS gms = (GMS) ch.getProtocolStack().findProtocol(GMS.class);
     gms.installView(view);
   }
 }
Ejemplo n.º 10
0
  /** Execute when new member join or leave Group */
  public void viewAccepted(View v) {
    memberSize = v.size();
    if (mainFrame != null) setTitle();
    members.clear();
    members.addAll(v.getMembers());

    if (v instanceof MergeView) {
      System.out.println("** " + v);

      // This is a simple merge function, which fetches the state from the coordinator
      // on a merge and overwrites all of its own state
      if (useState && !members.isEmpty()) {
        Address coord = members.get(0);
        Address local_addr = channel.getAddress();
        if (local_addr != null && !local_addr.equals(coord)) {
          try {

            // make a copy of our state first
            Map<Point, Color> copy = null;
            if (send_own_state_on_merge) {
              synchronized (drawPanel.state) {
                copy = new LinkedHashMap<Point, Color>(drawPanel.state);
              }
            }
            System.out.println("fetching state from " + coord);
            channel.getState(coord, 5000);
            if (copy != null)
              sendOwnState(copy); // multicast my own state so everybody else has it too
          } catch (Exception e) {
            e.printStackTrace();
          }
        }
      }
    } else System.out.println("** View=" + v);
  }
Ejemplo n.º 11
0
  /**
   * Init JWhiteBoard interface
   *
   * @throws Exception
   */
  public void go() throws Exception {
    if (!noChannel && !useState) channel.connect(groupName);
    mainFrame = new JFrame();
    mainFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    drawPanel = new DrawPanel(useState);
    drawPanel.setBackground(backgroundColor);
    subPanel = new JPanel();
    mainFrame.getContentPane().add("Center", drawPanel);
    clearButton = new JButton("Clean");
    clearButton.setFont(defaultFont);
    clearButton.addActionListener(this);
    leaveButton = new JButton("Exit");
    leaveButton.setFont(defaultFont);
    leaveButton.addActionListener(this);
    subPanel.add("South", clearButton);
    subPanel.add("South", leaveButton);
    mainFrame.getContentPane().add("South", subPanel);
    mainFrame.setBackground(backgroundColor);
    clearButton.setForeground(Color.blue);
    leaveButton.setForeground(Color.blue);
    mainFrame.pack();
    mainFrame.setLocation(15, 25);
    mainFrame.setBounds(new Rectangle(250, 250));

    if (!noChannel && useState) {
      channel.connect(groupName, null, stateTimeout);
    }
    mainFrame.setVisible(true);
  }
Ejemplo n.º 12
0
 /**
  * Constructor 3
  *
  * @param channel
  * @param use_state: Save state of Group
  * @param state_timeout: State time out
  * @throws Exception
  */
 public JWhiteBoard(JChannel channel, boolean use_state, long state_timeout) throws Exception {
   this.channel = channel;
   channel.setReceiver(this);
   channel.addChannelListener(this);
   this.useState = use_state;
   this.stateTimeout = state_timeout;
 }
Ejemplo n.º 13
0
  @Test
  public void testJoinMessageReceivedForDisconnectedHost() throws Exception {
    final AtomicInteger counter1 = new AtomicInteger(0);
    final AtomicInteger counter2 = new AtomicInteger(0);

    connector1.subscribe(String.class.getName(), new CountingCommandHandler(counter1));
    connector1.connect(20);
    assertTrue(
        "Expected connector 1 to connect within 10 seconds",
        connector1.awaitJoined(10, TimeUnit.SECONDS));

    connector2.subscribe(String.class.getName(), new CountingCommandHandler(counter2));
    connector2.connect(80);
    assertTrue("Connector 2 failed to connect", connector2.awaitJoined());

    // wait for both connectors to have the same view
    waitForConnectorSync();

    ConsistentHash hashBefore = connector1.getConsistentHash();
    // secretly insert an illegal message
    channel1
        .getReceiver()
        .receive(
            new Message(
                channel1.getAddress(),
                new IpAddress(12345),
                new JoinMessage(10, Collections.<String>emptySet())));
    ConsistentHash hash2After = connector1.getConsistentHash();
    assertEquals("That message should not have changed the ring", hashBefore, hash2After);
  }
Ejemplo n.º 14
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  /** Tests A.startFlush(), followed by another A.startFlush() */
  public void testTwoStartFlushesOnDifferentMembersWithTotalFlush() throws Exception {
    c1 = createChannel(true, 3);
    c1.connect("testTwoStartFlushesOnDifferentMembersWithTotalFlush");
    c2 = createChannel(c1);
    c2.connect("testTwoStartFlushesOnDifferentMembersWithTotalFlush");
    assertViewsReceived(c1, c2);

    boolean rc = startFlush(c1, false);
    assert rc;

    rc = startFlush(c2, 1, 500, false);
    assert !rc;

    stopFlush(c1);

    rc = startFlush(c2, false);
    assert rc;
    stopFlush(c2);

    rc = startFlush(c1, false);
    assert rc;
    stopFlush(c2); // c2 can actually stop a flush started by c1

    rc = startFlush(c2, true);
    assert rc;
  }
Ejemplo n.º 15
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  /** Tests https://jira.jboss.org/jira/browse/JGRP-1079 for unicast messages */
  public void testOOBUnicastMessageLoss() throws Exception {
    MyReceiver receiver = new MySleepingReceiver("C2", 1000);
    b.setReceiver(receiver);

    a.getProtocolStack().getTransport().setOOBRejectionPolicy("discard");

    final int NUM = 10;
    final Address dest = b.getAddress();
    for (int i = 1; i <= NUM; i++) {
      Message msg = new Message(dest, null, i);
      msg.setFlag(Message.OOB);
      a.send(msg);
    }

    Collection<Integer> msgs = receiver.getMsgs();

    for (int i = 0; i < 20; i++) {
      if (msgs.size() == NUM) break;
      Util.sleep(1000);
      // sendStableMessages(c1,c2); // not needed for unicasts !
    }

    assert msgs.size() == NUM
        : "expected " + NUM + " messages but got " + msgs.size() + ", msgs=" + Util.print(msgs);
    for (int i = 1; i <= NUM; i++) {
      assert msgs.contains(i);
    }
  }
Ejemplo n.º 16
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  /** Tests https://jira.jboss.org/jira/browse/JGRP-1079 */
  public void testOOBMessageLoss() throws Exception {
    Util.close(b); // we only need 1 channel
    MyReceiver receiver = new MySleepingReceiver("C1", 1000);
    a.setReceiver(receiver);

    TP transport = a.getProtocolStack().getTransport();
    transport.setOOBRejectionPolicy("discard");

    final int NUM = 10;

    for (int i = 1; i <= NUM; i++) {
      Message msg = new Message(null, null, i);
      msg.setFlag(Message.OOB);
      a.send(msg);
    }
    STABLE stable = (STABLE) a.getProtocolStack().findProtocol(STABLE.class);
    if (stable != null) stable.runMessageGarbageCollection();
    Collection<Integer> msgs = receiver.getMsgs();

    for (int i = 0; i < 20; i++) {
      if (msgs.size() == NUM) break;
      Util.sleep(1000);
      sendStableMessages(a, b);
    }

    System.out.println("msgs = " + Util.print(msgs));

    assert msgs.size() == NUM
        : "expected " + NUM + " messages but got " + msgs.size() + ", msgs=" + Util.print(msgs);
    for (int i = 1; i <= NUM; i++) {
      assert msgs.contains(i);
    }
  }
Ejemplo n.º 17
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 public void testRegularUnicastsToOthers() throws Exception {
   send(c1, c2.getAddress(), false, 10);
   send(c1, c3.getAddress(), false, 10);
   sendStableMessages(c1, c2, c3);
   check(r2, 1, false, new Tuple<Address, Integer>(a1, 10));
   check(r3, 1, false, new Tuple<Address, Integer>(a1, 10));
 }
Ejemplo n.º 18
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 protected void enableInfoSender(boolean enable, JChannel... channels) throws Exception {
   for (JChannel ch : channels) {
     MERGE3 merge = (MERGE3) ch.getProtocolStack().findProtocol(MERGE3.class);
     Method meth = enable ? startInfoSender : stopInfoSender;
     meth.invoke(merge);
   }
 }
Ejemplo n.º 19
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  public void testRegularAndOOBMulticasts() throws Exception {
    DISCARD discard = new DISCARD();
    ProtocolStack stack = a.getProtocolStack();
    stack.insertProtocol(discard, ProtocolStack.BELOW, NAKACK2.class);
    a.setDiscardOwnMessages(true);

    Address dest = null; // send to all
    Message m1 = new Message(dest, null, 1);
    Message m2 = new Message(dest, null, 2);
    m2.setFlag(Message.OOB);
    Message m3 = new Message(dest, null, 3);

    MyReceiver receiver = new MyReceiver("C2");
    b.setReceiver(receiver);
    a.send(m1);
    discard.setDropDownMulticasts(1);
    a.send(m2);
    a.send(m3);

    Util.sleep(500);
    Collection<Integer> list = receiver.getMsgs();
    for (int i = 0; i < 10; i++) {
      System.out.println("list = " + list);
      if (list.size() == 3) break;
      Util.sleep(1000); // give the asynchronous msgs some time to be received
      sendStableMessages(a, b);
    }
    assert list.size() == 3 : "list is " + list;
    assert list.contains(1) && list.contains(2) && list.contains(3);
  }
  private void sendMessageToBothChannels(int size) throws Exception {
    long start, stop;
    d1.setRequestHandler(new MyHandler(new byte[size]));

    c2 = createChannel(c1);
    c2.setName("B");
    disableBundling(c2);
    d2 = new MessageDispatcher(c2, null, null, new MyHandler(new byte[size]));
    c2.connect("MessageDispatcherUnitTest");
    Assert.assertEquals(2, c2.getView().size());

    System.out.println("casting message");
    start = System.currentTimeMillis();
    RspList rsps = d1.castMessage(null, new Message(), new RequestOptions(ResponseMode.GET_ALL, 0));
    stop = System.currentTimeMillis();
    System.out.println("rsps:\n" + rsps);
    System.out.println("call took " + (stop - start) + " ms");
    assertNotNull(rsps);
    Assert.assertEquals(2, rsps.size());
    Rsp rsp = rsps.get(c1.getAddress());
    assertNotNull(rsp);
    byte[] ret = (byte[]) rsp.getValue();
    Assert.assertEquals(size, ret.length);

    rsp = rsps.get(c2.getAddress());
    assertNotNull(rsp);
    ret = (byte[]) rsp.getValue();
    Assert.assertEquals(size, ret.length);

    Util.close(c2);
  }
Ejemplo n.º 21
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 protected JChannel createChannel(String name, boolean connect) throws Exception {
   JChannel retval =
       new JChannel(
               new SHARED_LOOPBACK(),
               new SHARED_LOOPBACK_PING(),
               new MERGE3()
                   .setValue("min_interval", 3000)
                   .setValue("max_interval", 4000)
                   .setValue("check_interval", 7000),
               new NAKACK2()
                   .setValue("use_mcast_xmit", false)
                   .setValue("log_discard_msgs", false)
                   .setValue("log_not_found_msgs", false),
               new UNICAST3(),
               new STABLE().setValue("max_bytes", 50000),
               new GMS()
                   .setValue("print_local_addr", false)
                   .setValue("use_merger2", true)
                   .setValue("join_timeout", 100)
                   .setValue("leave_timeout", 100)
                   .setValue("merge_timeout", 5000)
                   .setValue("log_view_warnings", false)
                   .setValue("view_ack_collection_timeout", 50)
                   .setValue("log_collect_msgs", false))
           .name(name);
   if (connect) retval.connect("MergeTest4");
   return retval;
 }
Ejemplo n.º 22
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  private void send(Address dest) throws Exception {
    final CountDownLatch latch = new CountDownLatch(1);
    final BlockingReceiver receiver = new BlockingReceiver(latch);
    final int NUM = 10;
    b.setReceiver(receiver);

    a.send(dest, 1); // the only regular message
    for (int i = 2; i <= NUM; i++) a.send(new Message(dest, i).setFlag(Message.Flag.OOB));

    sendStableMessages(a, b);
    List<Integer> list = receiver.getMsgs();
    for (int i = 0; i < 20; i++) {
      if (list.size() == NUM - 1) break;
      sendStableMessages(a, b);
      Util.sleep(500); // give the asynchronous msgs some time to be received
    }

    System.out.println("list = " + list);
    assert list.size() == NUM - 1 : "list is " + list;
    assert list.contains(2) && list.contains(10);

    System.out.println("[" + Thread.currentThread().getName() + "]: releasing latch");
    latch.countDown();

    for (int i = 0; i < 20; i++) {
      if (list.size() == NUM) break;
      sendStableMessages(a, b);
      Util.sleep(1000); // give the asynchronous msgs some time to be received
    }

    System.out.println("list = " + list);
    assert list.size() == NUM : "list is " + list;
    for (int i = 1; i <= NUM; i++) assert list.contains(i);
  }
 private static void modifyConfigs(JChannel... channels) throws Exception {
   for (JChannel ch : channels) {
     ProtocolStack stack = ch.getProtocolStack();
     stack.removeProtocol("MERGE2");
     stack.removeProtocol("VERIFY_SUSPECT");
     stack.removeProtocol("FC");
   }
 }
Ejemplo n.º 24
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  public void setUp() throws Exception {
    super.setUp();
    ch1 = new JChannel(props);
    ch1.connect(GROUP);

    ch2 = new JChannel(props);
    ch2.connect(GROUP);
  }
Ejemplo n.º 25
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 private static void sendStableMessages(JChannel... channels) {
   for (JChannel ch : channels) {
     STABLE stable = (STABLE) ch.getProtocolStack().findProtocol(STABLE.class);
     if (stable != null) stable.runMessageGarbageCollection();
     UNICAST2 uni = (UNICAST2) ch.getProtocolStack().findProtocol(UNICAST2.class);
     if (uni != null) uni.sendStableMessages();
   }
 }
Ejemplo n.º 26
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 private static JChannel findChannelByAddress(Address address, JChannel... channels) {
   for (JChannel ch : channels) {
     if (ch.getAddress().equals(address)) {
       return ch;
     }
   }
   return null;
 }
Ejemplo n.º 27
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 /**
  * 启动连接。
  *
  * @throws Exception
  */
 private void start() throws Exception {
   channle = new JChannel();
   channle.setReceiver(this);
   channle.connect("ChatCluster");
   channle.getState(null, 10000);
   eventloop();
   channle.close();
 }
Ejemplo n.º 28
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 @Test(invocationCount = 10)
 public void testOOBUnicastsToOthers() throws Exception {
   send(c1, c2.getAddress(), true, 10);
   send(c1, c3.getAddress(), true, 10);
   sendStableMessages(c1, c2, c3);
   check(r2, 1, true, new Tuple<Address, Integer>(a1, 10));
   check(r3, 1, true, new Tuple<Address, Integer>(a1, 10));
 }
 private Address getAddress(String nodeName) {
   for (Address member : channel.getView()) {
     if (channel.getName(member).equals(nodeName)) {
       return member;
     }
   }
   throw new IllegalArgumentException(
       "Given node doesn't seem to be a member of the DistributedCommandBus");
 }
Ejemplo n.º 30
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 protected static void removeDUPL(JChannel... channels) {
   for (JChannel ch : channels) {
     DUPL dupl = (DUPL) ch.getProtocolStack().findProtocol(DUPL.class);
     if (dupl != null) {
       dupl.setCopyMulticastMsgs(false);
       dupl.setCopyUnicastMsgs(false);
     }
   }
 }