Package org.jgroups.protocols

Examples of org.jgroups.protocols.DISCARD

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    @Test(dataProvider="configProvider")
    public void testReceptionOfAllMessagesWithDISCARD(Protocol prot) throws Throwable {
        System.out.println("prot=" + prot.getClass().getSimpleName());
        DISCARD discard=new DISCARD();
        discard.setDownDiscardRate(0.1); // discard all down message with 10% probability

        Protocol[] stack=new Protocol[]{prot, discard};
        createStack(stack);
        _testReceptionOfAllMessages();
    }
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            System.out.println("[" + channel.getAddress() + "] " + channel.downcall(Event.GET_DIGEST_EVT).toString());
        }
    }

    private static void insertDISCARD(JChannel ch, Address exclude) throws Exception {
        DISCARD discard=new DISCARD();
        discard.setExcludeItself(true);
        discard.addIgnoreMember(exclude); // ignore messages from this member
        ch.getProtocolStack().insertProtocol(discard, ProtocolStack.BELOW, "NAKACK");
    }
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    void cleanup() {
        Util.close(c2, c1);
    }

    public void testLastMessageDropped() throws Exception {
        DISCARD discard=new DISCARD();
        ProtocolStack stack=c1.getProtocolStack();
        stack.insertProtocol(discard, ProtocolStack.BELOW, NAKACK.class);
        c1.setOpt(Channel.LOCAL, false);

        Message m1=new Message(null, null, 1);
        Message m2=new Message(null, null, 2);
        Message m3=new Message(null, null, 3);

        MyReceiver receiver=new MyReceiver();
        c2.setReceiver(receiver);
        c1.send(m1);
        c1.send(m2);
        discard.setDropDownMulticasts(1); // drop the next multicast
        c1.send(m3);
        Util.sleep(100);

        List<Integer> list=receiver.getMsgs();
        for(int i=0; i < 10; i++)  {
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    /**
     * 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=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);

        MyReceiver receiver=new MyReceiver("C2");
        c2.setReceiver(receiver);
        c1.send(m1);
        discard.setDropDownUnicasts(1);
        c1.send(m2);
        c1.send(m3);

        sendStableMessages(c1,c2);
        Util.sleep(1000); // time for potential retransmission
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        assert list.size() == 3 : "list is " + list;
        assert list.contains(1) && list.contains(2) && list.contains(3);
    }

    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
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        assert list.size() == 4 : "list is " + list;
        assert list.contains(1) && list.contains(2) && list.contains(3) && list.contains(4);
    }

    public void testRegularAndOOBMulticasts() throws Exception {
        DISCARD discard=new DISCARD();
        ProtocolStack stack=c1.getProtocolStack();
        stack.insertProtocol(discard, ProtocolStack.BELOW, NAKACK.class);
        c1.setOpt(Channel.LOCAL, false);

        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");
        c2.setReceiver(receiver);
        c1.send(m1);
        discard.setDropDownMulticasts(1);
        c1.send(m2);
        c1.send(m3);

        Util.sleep(500);
        Collection<Integer> list=receiver.getMsgs();
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    @Test(invocationCount=5)
    @SuppressWarnings("unchecked")
    public void testRandomRegularAndOOBMulticasts() throws Exception {
        DISCARD discard=new DISCARD();
        discard.setLocalAddress(c1.getAddress());
        discard.setDownDiscardRate(0.5);
        ProtocolStack stack=c1.getProtocolStack();
        stack.insertProtocol(discard, ProtocolStack.BELOW, NAKACK.class);
        MyReceiver r1=new MyReceiver("C1"), r2=new MyReceiver("C2");
        c1.setReceiver(r1);
        c2.setReceiver(r2);
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        ch1.setReceiver(new MyReceiver(ch1_all_received, NUM_MSGS, "ch1"));
        ch2=createChannel(ch1);
        ch2.setReceiver(new MyReceiver(ch2_all_received, NUM_MSGS, "ch2"));

        if(discard) {
            DISCARD discard_prot=new DISCARD();
            Properties properties=new Properties();
            properties.setProperty("down", "0.1");

            ch1.getProtocolStack().insertProtocol(discard_prot, ProtocolStack.BELOW, "MERGE2");
            discard_prot=new DISCARD();
            properties=new Properties();
            properties.setProperty("down", "0.1");
            ch2.getProtocolStack().insertProtocol(discard_prot, ProtocolStack.BELOW, "MERGE2");
        }
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        UNICAST unicast=new UNICAST();
        Properties props=new Properties();
        props.setProperty("timeout", "500,1000,2000,3000");
        unicast.setProperties(props);

        DISCARD discard=new DISCARD();
        props.clear();
        props.setProperty("down", "0.1"); // discard all down message with 10% probability
        discard.setProperties(props);

        Protocol[] stack=new Protocol[]{unicast,discard};
        createStack(stack);
        _testReceptionOfAllMessages();
    }
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   public static DISCARD getDiscardForCache(Cache<?, ?> c) throws Exception {
      JGroupsTransport jgt = (JGroupsTransport) TestingUtil.extractComponent(c, Transport.class);
      Channel ch = jgt.getChannel();
      ProtocolStack ps = ch.getProtocolStack();
      DISCARD discard = new DISCARD();
      ps.insertProtocol(discard, ProtocolStack.ABOVE, TP.class);
      return discard;
   }
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Related Classes of org.jgroups.protocols.DISCARD

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  • org.infinispan.partitionhandling.NumOwnersNodeCrashInSequenceTest
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  • org.infinispan.statetransfer.StateTransferRestartTest
  • org.infinispan.test.TestingUtil
  • org.jboss.cache.buddyreplication.BuddyReplicationFailoverTest
  • org.jgroups.Address
  • org.jgroups.Event
  • org.jgroups.Message
  • org.jgroups.tests.DiscardTest
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