public void run() {

      for (int i = 1; i <= number_of_msgs; i++) {
        try {
          Message msg = new Message(null, buf);
          if (oob) msg.setFlag(Message.Flag.OOB);
          if (dont_bundle) msg.setFlag(Message.Flag.DONT_BUNDLE);
          if (i > 0 && do_print > 0 && i % do_print == 0) System.out.println("-- sent " + i);

          Buffer buffer = writeMessage(msg);

          output_lock.lock(); // need to sync if we have more than 1 sender
          try {
            // msg.writeTo(output);
            output.writeInt(buffer.getLength());
            output.write(buffer.getBuf(), buffer.getOffset(), buffer.getLength());
            // output.flush();
          } finally {
            output_lock.unlock();
          }
        } catch (Exception e) {
          e.printStackTrace();
        }
      }
    }
  protected static Message constructMessage(
      Buffer buf, Address recipient, ResponseMode mode, boolean rsvp, DeliverOrder deliverOrder) {
    Message msg = new Message();
    msg.setBuffer(buf);
    encodeDeliverMode(msg, deliverOrder);
    // some issues with the new bundler. put back the DONT_BUNDLE flag.
    if (deliverOrder == DeliverOrder.NONE || mode != ResponseMode.GET_NONE)
      msg.setFlag(Message.Flag.DONT_BUNDLE);
    if (rsvp) msg.setFlag(Message.Flag.RSVP);

    if (recipient != null) msg.setDest(recipient);
    return msg;
  }
Beispiel #3
0
  public void sendDiscoveryRequest(String cluster_name, Promise promise, ViewId view_id)
      throws Exception {
    PingData data = null;
    PhysicalAddress physical_addr =
        (PhysicalAddress) down(new Event(Event.GET_PHYSICAL_ADDRESS, local_addr));

    if (view_id == null) {
      List<PhysicalAddress> physical_addrs = Arrays.asList(physical_addr);
      data = new PingData(local_addr, null, false, UUID.get(local_addr), physical_addrs);
    }

    PingHeader hdr = new PingHeader(PingHeader.GET_MBRS_REQ, data, cluster_name);
    hdr.view_id = view_id;

    Collection<PhysicalAddress> cluster_members = fetchClusterMembers(cluster_name);
    if (cluster_members == null) {
      Message msg = new Message(null); // multicast msg
      msg.setFlag(Message.OOB);
      msg.putHeader(getId(), hdr);
      sendMcastDiscoveryRequest(msg);
    } else {
      if (cluster_members.isEmpty()) { // if we don't find any members, return immediately
        if (promise != null) promise.setResult(null);
      } else {
        for (final Address addr : cluster_members) {
          if (addr.equals(physical_addr)) // no need to send the request to myself
          continue;
          final Message msg = new Message(addr, null, null);
          msg.setFlag(Message.OOB);
          msg.putHeader(this.id, hdr);
          if (log.isTraceEnabled())
            log.trace("[FIND_INITIAL_MBRS] sending discovery request to " + msg.getDest());
          if (!sendDiscoveryRequestsInParallel()) {
            down_prot.down(new Event(Event.MSG, msg));
          } else {
            timer.execute(
                new Runnable() {
                  public void run() {
                    try {
                      down_prot.down(new Event(Event.MSG, msg));
                    } catch (Exception ex) {
                      if (log.isErrorEnabled())
                        log.error("failed sending discovery request to " + addr + ": " + ex);
                    }
                  }
                });
          }
        }
      }
    }
  }
 private static Message constructMessage(
     Buffer buf, Address recipient, boolean oob, ResponseMode mode, boolean rsvp) {
   Message msg = new Message();
   msg.setBuffer(buf);
   if (oob) msg.setFlag(Message.OOB);
   if (oob || mode != ResponseMode.GET_NONE) {
     msg.setFlag(Message.DONT_BUNDLE);
     // This is removed since this optimisation is no longer valid.  See ISPN-1878
     // msg.setFlag(Message.NO_FC);
   }
   if (rsvp) msg.setFlag(Message.RSVP);
   if (recipient != null) msg.setDest(recipient);
   return msg;
 }
Beispiel #5
0
 public void run() {
   for (int i = 1; i <= number_of_msgs; i++) {
     try {
       Message msg = new Message(destination, buf);
       if (oob) msg.setFlag(Message.Flag.OOB);
       if (dont_bundle) msg.setFlag(Message.Flag.DONT_BUNDLE);
       if (i > 0 && print > 0 && i % print == 0) System.out.println("-- sent " + i);
       channel.send(msg);
       if (sleep_time > 0) Util.sleep(sleep_time);
     } catch (Exception e) {
       e.printStackTrace();
     }
   }
 }
Beispiel #6
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  private static void send(
      Channel sender_channel, Address dest, boolean oob, boolean mixed, int num_msgs)
      throws Exception {
    long seqno = 1;
    for (int i = 0; i < num_msgs; i++) {
      Message msg = new Message(dest, null, seqno++);
      if (mixed) {
        if (i % 2 == 0) msg.setFlag(Message.OOB);
      } else if (oob) {
        msg.setFlag(Message.OOB);
      }

      sender_channel.send(msg);
    }
  }
 private static void encodeDeliverMode(Message request, DeliverOrder deliverOrder) {
   switch (deliverOrder) {
     case TOTAL:
       request.setFlag(Message.Flag.OOB);
       request.clearFlag(Message.Flag.NO_TOTAL_ORDER);
       break;
     case PER_SENDER:
       request.clearFlag(Message.Flag.OOB);
       request.setFlag(Message.Flag.NO_TOTAL_ORDER);
       break;
     case NONE:
       request.setFlag(Message.Flag.OOB, Message.Flag.NO_TOTAL_ORDER);
       break;
   }
 }
Beispiel #8
0
 private void sendViewAck(Address dest) {
   Message view_ack = new Message(dest, null, null);
   view_ack.setFlag(Message.OOB);
   GmsHeader tmphdr = new GmsHeader(GmsHeader.VIEW_ACK);
   view_ack.putHeader(this.id, tmphdr);
   down_prot.down(new Event(Event.MSG, view_ack));
 }
  /**
   * Sends a unicast message and - depending on the options - returns a result
   *
   * @param msg the message to be sent. The destination needs to be non-null
   * @param opts the options to be used
   * @return T the result
   * @throws Exception If there was problem sending the request, processing it at the receiver, or
   *     processing it at the sender.
   * @throws TimeoutException If the call didn't succeed within the timeout defined in options (if
   *     set)
   */
  public <T> T sendMessage(Message msg, RequestOptions opts) throws Exception {
    Address dest = msg.getDest();
    if (dest == null)
      throw new IllegalArgumentException("message destination is null, cannot send message");

    if (opts != null) {
      msg.setFlag(opts.getFlags()).setTransientFlag(opts.getTransientFlags());
      if (opts.getScope() > 0) msg.setScope(opts.getScope());
      if (opts.getMode() == ResponseMode.GET_NONE) async_unicasts.incrementAndGet();
      else sync_unicasts.incrementAndGet();
    }

    UnicastRequest<T> req = new UnicastRequest<T>(msg, corr, dest, opts);
    req.execute();

    if (opts != null && opts.getMode() == ResponseMode.GET_NONE) return null;

    Rsp<T> rsp = req.getResult();
    if (rsp.wasSuspected()) throw new SuspectedException(dest);

    Throwable exception = rsp.getException();
    if (exception != null) {
      if (exception instanceof Error) throw (Error) exception;
      else if (exception instanceof RuntimeException) throw (RuntimeException) exception;
      else if (exception instanceof Exception) throw (Exception) exception;
      else throw new RuntimeException(exception);
    }

    if (rsp.wasUnreachable()) throw new UnreachableException(dest);
    if (!rsp.wasReceived() && !req.responseReceived())
      throw new TimeoutException("timeout sending message to " + dest);
    return rsp.getValue();
  }
Beispiel #10
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);
  }
Beispiel #11
0
  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);
  }
Beispiel #12
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  protected void sendStableMessage(Address dest, short conn_id, long low, long high) {
    Message stable_msg = new Message(dest, null, null);
    Unicast2Header hdr = Unicast2Header.createStableHeader(conn_id, low, high);
    stable_msg.putHeader(this.id, hdr);
    stable_msg.setFlag(Message.OOB);
    if (log.isTraceEnabled()) {
      StringBuilder sb = new StringBuilder();
      sb.append(local_addr)
          .append(" --> STABLE(")
          .append(dest)
          .append(": ")
          .append(low)
          .append("-")
          .append(high)
          .append(", conn_id=")
          .append(conn_id)
          .append(")");
      log.trace(sb.toString());
    }
    down_prot.down(new Event(Event.MSG, stable_msg));

    ReceiverEntry entry = recv_table.get(dest);
    NakReceiverWindow win = entry != null ? entry.received_msgs : null;
    if (win != null) win.stable(win.getHighestDelivered());
  }
Beispiel #13
0
  /**
   * Multicasts a GET_DIGEST_REQ to all current members and waits for all responses (GET_DIGEST_RSP)
   * or N ms.
   *
   * @return
   */
  private Digest fetchDigestsFromAllMembersInSubPartition(List<Address> current_mbrs) {
    if (current_mbrs == null) return null;

    GMS.GmsHeader hdr = new GMS.GmsHeader(GMS.GmsHeader.GET_DIGEST_REQ);
    Message get_digest_req = new Message();
    get_digest_req.setFlag(Message.OOB);
    get_digest_req.putHeader(gms.getId(), hdr);

    long max_wait_time = gms.merge_timeout > 0 ? gms.merge_timeout / 2 : 2000L;
    digest_collector.reset(current_mbrs);

    // add my own digest first
    Digest digest = (Digest) gms.getDownProtocol().down(Event.GET_DIGEST_EVT);
    digest_collector.add(gms.local_addr, digest);

    gms.getDownProtocol().down(new Event(Event.MSG, get_digest_req));
    digest_collector.waitForAllResponses(max_wait_time);
    if (log.isDebugEnabled()) {
      if (digest_collector.hasAllResponses())
        log.debug(gms.local_addr + ": fetched all digests for " + current_mbrs);
      else
        log.debug(
            gms.local_addr
                + ": fetched incomplete digests (after timeout of "
                + max_wait_time
                + ") ms for "
                + current_mbrs);
    }
    Map<Address, Digest> responses = new HashMap<Address, Digest>(digest_collector.getResults());
    MutableDigest retval = new MutableDigest(responses.size());
    for (Digest dig : responses.values()) {
      if (dig != null) retval.add(dig);
    }
    return retval;
  }
Beispiel #14
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  public void sendGetMembersRequest(String cluster_name, Promise promise, boolean return_views_only)
      throws Exception {
    PhysicalAddress physical_addr =
        (PhysicalAddress) down_prot.down(new Event(Event.GET_PHYSICAL_ADDRESS, local_addr));
    PingData data =
        new PingData(local_addr, null, false, UUID.get(local_addr), Arrays.asList(physical_addr));
    PingHeader hdr = new PingHeader(PingHeader.GET_MBRS_REQ, data, cluster_name);
    hdr.return_view_only = return_views_only;

    Set<PhysicalAddress> combined_target_members = new HashSet<PhysicalAddress>(initial_hosts);
    combined_target_members.addAll(dynamic_hosts);

    for (final Address addr : combined_target_members) {
      if (addr.equals(physical_addr)) continue;
      final Message msg = new Message(addr, null, null);
      msg.setFlag(Message.OOB);
      msg.putHeader(this.id, hdr);
      if (log.isTraceEnabled())
        log.trace("[FIND_INITIAL_MBRS] sending PING request to " + msg.getDest());
      timer.execute(
          new Runnable() {
            public void run() {
              try {
                down_prot.down(new Event(Event.MSG, msg));
              } catch (Exception ex) {
                if (log.isErrorEnabled())
                  log.error("failed sending discovery request to " + addr + ": " + ex);
              }
            }
          });
    }
  }
Beispiel #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);
    }
  }
Beispiel #16
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  /**
   * If merge_id is not equal to this.merge_id then discard. Else cast the view/digest to all
   * members of this group.
   */
  public void handleMergeView(final MergeData data, final MergeId merge_id) {
    if (!matchMergeId(merge_id)) {
      if (log.isErrorEnabled())
        log.error("merge_ids don't match (or are null); merge view discarded");
      return;
    }

    // only send to our *current* members, if we have A and B being merged (we are B), then we would
    // *not*
    // receive a VIEW_ACK from A because A doesn't see us in the pre-merge view yet and discards the
    // view

    // [JGRP-700] - FLUSH: flushing should span merge

    // we have to send new view only to current members and we should not wait
    // for view acks from newly merged mebers
    List<Address> newViewMembers = new Vector<Address>(data.view.getMembers());
    newViewMembers.removeAll(gms.members.getMembers());

    gms.castViewChangeWithDest(data.view, data.digest, null, newViewMembers);
    // if we have flush in stack send ack back to merge coordinator
    if (gms.flushProtocolInStack) {
      Message ack = new Message(data.getSender(), null, null);
      ack.setFlag(Message.OOB);
      GMS.GmsHeader ack_hdr = new GMS.GmsHeader(GMS.GmsHeader.INSTALL_MERGE_VIEW_OK);
      ack.putHeader(gms.getId(), ack_hdr);
      gms.getDownProtocol().down(new Event(Event.MSG, ack));
    }
    cancelMerge(merge_id);
  }
Beispiel #17
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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);
    }
  }
Beispiel #18
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    /**
     * Sends a MERGE_REQ to all coords and populates a list of MergeData (in merge_rsps). Returns
     * after coords.size() response have been received, or timeout msecs have elapsed (whichever is
     * first).
     *
     * <p>If a subgroup coordinator rejects the MERGE_REQ (e.g. because of participation in a
     * different merge), <em>that member will be removed from coords !</em>
     *
     * @param coords A map of coordinatgor addresses and associated membership lists
     * @param new_merge_id The new merge id
     * @param timeout Max number of msecs to wait for the merge responses from the subgroup coords
     */
    private boolean getMergeDataFromSubgroupCoordinators(
        Map<Address, Collection<Address>> coords, MergeId new_merge_id, long timeout) {
      boolean gotAllResponses;
      long start = System.currentTimeMillis();
      merge_rsps.reset(coords.keySet());
      if (log.isDebugEnabled())
        log.debug(gms.local_addr + ": sending MERGE_REQ to " + coords.keySet());

      for (Map.Entry<Address, Collection<Address>> entry : coords.entrySet()) {
        Address coord = entry.getKey();
        Collection<Address> mbrs = entry.getValue();
        Message msg = new Message(coord, null, null);
        msg.setFlag(Message.OOB);
        GMS.GmsHeader hdr = new GMS.GmsHeader(GMS.GmsHeader.MERGE_REQ, mbrs);
        hdr.mbr = gms.local_addr;
        hdr.merge_id = new_merge_id;
        msg.putHeader(gms.getId(), hdr);
        gms.getDownProtocol().down(new Event(Event.MSG, msg));
      }

      // wait until num_rsps_expected >= num_rsps or timeout elapsed
      merge_rsps.waitForAllResponses(timeout);
      gotAllResponses = merge_rsps.hasAllResponses();
      long stop = System.currentTimeMillis();
      if (log.isDebugEnabled())
        log.debug(
            gms.local_addr
                + ": collected "
                + merge_rsps.size()
                + " merge response(s) in "
                + (stop - start)
                + " ms");
      return gotAllResponses;
    }
Beispiel #19
0
 private void sendRequestForFirstSeqno(Address dest, long seqno_received) {
   Message msg = new Message(dest);
   msg.setFlag(Message.OOB);
   Unicast2Header hdr = Unicast2Header.createSendFirstSeqnoHeader(seqno_received);
   msg.putHeader(this.id, hdr);
   if (log.isTraceEnabled())
     log.trace(local_addr + " --> SEND_FIRST_SEQNO(" + dest + "," + seqno_received + ")");
   down_prot.down(new Event(Event.MSG, msg));
 }
 protected void sendMessage(JChannel ch, String message) {
   try {
     Message msg = new Message(null, message);
     msg.setFlag(Message.Flag.OOB);
     ch.send(msg);
   } catch (Exception e) {
     e.printStackTrace(System.err);
   }
 }
Beispiel #21
0
 public void retransmit(SeqnoList missing, Address sender) {
   Unicast2Header hdr = Unicast2Header.createXmitReqHeader();
   Message retransmit_msg = new Message(sender, null, missing);
   retransmit_msg.setFlag(Message.OOB);
   if (log.isTraceEnabled())
     log.trace(local_addr + ": sending XMIT_REQ (" + missing + ") to " + sender);
   retransmit_msg.putHeader(this.id, hdr);
   down_prot.down(new Event(Event.MSG, retransmit_msg));
   xmit_reqs_sent.addAndGet(missing.size());
 }
Beispiel #22
0
 protected void sendMergeRejectedResponse(Address sender, MergeId merge_id) {
   Message msg = new Message(sender, null, null);
   msg.setFlag(Message.OOB);
   GMS.GmsHeader hdr = new GMS.GmsHeader(GMS.GmsHeader.MERGE_RSP);
   hdr.merge_rejected = true;
   hdr.merge_id = merge_id;
   msg.putHeader(gms.getId(), hdr);
   if (log.isDebugEnabled()) log.debug("merge response=" + hdr);
   gms.getDownProtocol().down(new Event(Event.MSG, msg));
 }
Beispiel #23
0
 /** Send back a response containing view and digest to sender */
 private void sendMergeResponse(Address sender, View view, Digest digest, MergeId merge_id) {
   Message msg = new Message(sender, null, null);
   msg.setFlag(Message.OOB);
   GMS.GmsHeader hdr = new GMS.GmsHeader(GMS.GmsHeader.MERGE_RSP);
   hdr.merge_id = merge_id;
   hdr.view = view;
   hdr.my_digest = digest;
   msg.putHeader(gms.getId(), hdr);
   if (log.isDebugEnabled()) log.debug(gms.local_addr + ": sending merge response=" + hdr);
   gms.getDownProtocol().down(new Event(Event.MSG, msg));
 }
Beispiel #24
0
 protected void sendRequest(Address dest, Type type, long requestId, Object object) {
   Request req = new Request(type, object, requestId);
   Message msg = new Message(dest, req).putHeader(id, new ExecutorHeader());
   if (bypass_bundling) msg.setFlag(Message.Flag.DONT_BUNDLE);
   if (log.isTraceEnabled())
     log.trace("[" + local_addr + "] --> [" + (dest == null ? "ALL" : dest) + "] " + req);
   try {
     down_prot.down(msg);
   } catch (Exception ex) {
     log.error(Util.getMessage("FailedSending") + type + " request: " + ex);
   }
 }
Beispiel #25
0
  private void send(
      final Address dest, final int num_msgs, final int num_threads, final double oob_prob)
      throws Exception {
    if (num_threads <= 0) throw new IllegalArgumentException("number of threads <= 0");

    if (num_msgs % num_threads != 0)
      throw new IllegalArgumentException(
          "number of messages ( "
              + num_msgs
              + ") needs to be divisible by "
              + "the number o threads ("
              + num_threads
              + ")");

    if (num_threads > 1) {
      final int msgs_per_thread = num_msgs / num_threads;
      Thread[] threads = new Thread[num_threads];
      final AtomicInteger counter = new AtomicInteger(0);
      for (int i = 0; i < threads.length; i++) {
        threads[i] =
            new Thread() {
              public void run() {
                for (int j = 0; j < msgs_per_thread; j++) {
                  Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
                  boolean oob = Util.tossWeightedCoin(oob_prob);
                  int num = counter.incrementAndGet();
                  Message msg = new Message(dest, null, num);
                  if (oob) msg.setFlag(Message.OOB);
                  try {
                    sender.send(msg);
                  } catch (Exception e) {
                    e.printStackTrace();
                  }
                }
              }
            };
        threads[i].start();
      }
      for (int i = 0; i < threads.length; i++) {
        threads[i].join(20000);
      }
      return;
    }

    for (int i = 0; i < num_msgs; i++) {
      Channel sender = Util.tossWeightedCoin(0.5) ? a : b;
      boolean oob = Util.tossWeightedCoin(oob_prob);
      Message msg = new Message(dest, null, i);
      if (oob) msg.setFlag(Message.OOB);
      sender.send(msg);
    }
  }
Beispiel #26
0
 protected void sendRequest(
     Address dest, Type type, String lock_name, Owner owner, long timeout, boolean is_trylock) {
   Request req = new Request(type, lock_name, owner, timeout, is_trylock);
   Message msg = new Message(dest, req).putHeader(id, new LockingHeader());
   if (bypass_bundling) msg.setFlag(Message.Flag.DONT_BUNDLE);
   if (log.isTraceEnabled())
     log.trace("[" + local_addr + "] --> [" + (dest == null ? "ALL" : dest) + "] " + req);
   try {
     down_prot.down(new Event(Event.MSG, msg));
   } catch (Exception ex) {
     log.error("failed sending " + type + " request: " + ex);
   }
 }
Beispiel #27
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  protected void sendDiscoveryResponse(
      Address logical_addr,
      List<PhysicalAddress> physical_addrs,
      boolean is_server,
      boolean return_view_only,
      String logical_name,
      final Address sender) {
    PingData data;
    if (return_view_only) {
      data = new PingData(logical_addr, view, is_server, null, null);
    } else {
      ViewId view_id = view != null ? view.getViewId() : null;
      data = new PingData(logical_addr, null, view_id, is_server, logical_name, physical_addrs);
    }

    final Message rsp_msg = new Message(sender, null, null);
    rsp_msg.setFlag(Message.OOB);
    final PingHeader rsp_hdr = new PingHeader(PingHeader.GET_MBRS_RSP, data);
    rsp_msg.putHeader(this.id, rsp_hdr);

    if (stagger_timeout > 0) {
      int view_size = view != null ? view.size() : 10;
      int rank = Util.getRank(view, local_addr); // returns 0 if view or local_addr are null
      long sleep_time =
          rank == 0
              ? Util.random(stagger_timeout)
              : stagger_timeout * rank / view_size - (stagger_timeout / view_size);
      timer.schedule(
          new Runnable() {
            public void run() {
              if (log.isTraceEnabled())
                log.trace(
                    local_addr
                        + ": received GET_MBRS_REQ from "
                        + sender
                        + ", sending staggered response "
                        + rsp_hdr);
              down_prot.down(new Event(Event.MSG, rsp_msg));
            }
          },
          sleep_time,
          TimeUnit.MILLISECONDS);
      return;
    }

    if (log.isTraceEnabled())
      log.trace("received GET_MBRS_REQ from " + sender + ", sending response " + rsp_hdr);
    down_prot.down(new Event(Event.MSG, rsp_msg));
  }
Beispiel #28
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  public void testRegularAndOOBUnicasts2() throws Exception {
    DISCARD discard = new DISCARD();
    ProtocolStack stack = c1.getProtocolStack();
    stack.insertProtocol(discard, ProtocolStack.BELOW, UNICAST.class, UNICAST2.class);

    Address dest = c2.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);
    m3.setFlag(Message.OOB);
    Message m4 = new Message(dest, null, 4);

    MyReceiver receiver = new MyReceiver("C2");
    c2.setReceiver(receiver);
    c1.send(m1);

    discard.setDropDownUnicasts(1);
    c1.send(m3);

    discard.setDropDownUnicasts(1);
    c1.send(m2);

    c1.send(m4);
    Util.sleep(1000); // sleep some time to receive all messages

    Collection<Integer> list = receiver.getMsgs();
    int count = 10;
    while (list.size() < 4 && --count > 0) {
      Util.sleep(500); // time for potential retransmission
      sendStableMessages(c1, c2);
    }
    log.info("list = " + list);
    assert list.size() == 4 : "list is " + list;
    assert list.contains(1) && list.contains(2) && list.contains(3) && list.contains(4);
  }
Beispiel #29
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  public <T> NotifyingFuture<T> callRemoteMethodWithFuture(
      Address dest, MethodCall call, RequestOptions options) throws Throwable {
    if (log.isTraceEnabled())
      log.trace("dest=" + dest + ", method_call=" + call + ", options=" + options);

    Object buf =
        req_marshaller != null
            ? req_marshaller.objectToBuffer(call)
            : Util.objectToByteBuffer(call);
    Message msg = new Message(dest, null, null);
    if (buf instanceof Buffer) msg.setBuffer((Buffer) buf);
    else msg.setBuffer((byte[]) buf);
    msg.setFlag(options.getFlags());
    if (options.getScope() > 0) msg.setScope(options.getScope());
    return super.sendMessageWithFuture(msg, options);
  }
Beispiel #30
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  /**
   * Invokes a method in all members contained in dests (or all members if dests is null).
   *
   * @param dests A list of addresses. If null, the method will be invoked on all cluster members
   * @param method_call The method (plus args) to be invoked
   * @param options A collection of call options, e.g. sync versus async, timeout etc
   * @return RspList A list of return values and flags (suspected, not received) per member
   * @since 2.9
   */
  public RspList callRemoteMethods(
      Collection<Address> dests, MethodCall method_call, RequestOptions options) {
    if (dests != null && dests.isEmpty()) { // don't send if dest list is empty
      if (log.isTraceEnabled())
        log.trace(
            new StringBuilder("destination list of ")
                .append(method_call.getName())
                .append("() is empty: no need to send message"));
      return RspList.EMPTY_RSP_LIST;
    }

    if (log.isTraceEnabled())
      log.trace(
          new StringBuilder("dests=")
              .append(dests)
              .append(", method_call=")
              .append(method_call)
              .append(", options=")
              .append(options));

    Object buf;
    try {
      buf =
          req_marshaller != null
              ? req_marshaller.objectToBuffer(method_call)
              : Util.objectToByteBuffer(method_call);
    } catch (Exception e) {
      // if(log.isErrorEnabled()) log.error("exception", e);
      // we will change this in 3.0 to add the exception to the signature
      // (see http://jira.jboss.com/jira/browse/JGRP-193). The reason for a RTE is that we cannot
      // change the
      // signature in 2.3, otherwise 2.3 would be *not* API compatible to prev releases
      throw new RuntimeException("failure to marshal argument(s)", e);
    }

    Message msg = new Message();
    if (buf instanceof Buffer) msg.setBuffer((Buffer) buf);
    else msg.setBuffer((byte[]) buf);

    msg.setFlag(options.getFlags());
    if (options.getScope() > 0) msg.setScope(options.getScope());

    RspList retval = super.castMessage(dests, msg, options);
    if (log.isTraceEnabled()) log.trace("responses: " + retval);
    return retval;
  }