Examples of DISCARD

cascading.pipe.assembly.Discard
Class Discard is a {@link cascading.pipe.SubAssembly} that will retain all incoming fields except those given on the constructor.
Use this pipe to narrow a stream of tuples, removing unused data. @see Retain
org.jgroups.protocols.DISCARD
Discards up or down messages based on a percentage; e.g., setting property 'up' to 0.1 causes 10% of all up messages to be discarded. Setting 'down' or 'up' to 0 causes no loss, whereas 1 discards all messages (not very useful).

Examples of org.jgroups.protocols.DISCARD

        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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Examples of org.jgroups.protocols.DISCARD




    @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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Examples of org.jgroups.protocols.DISCARD

        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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Examples of org.jgroups.protocols.DISCARD

        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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Examples of org.jgroups.protocols.DISCARD


   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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Examples of org.jgroups.protocols.DISCARD

   }


   private void killChannel(CacheSPI cacheToKill, CacheSPI anotherCache, int finalExpectedClusterSize)
   {
      JChannel channel = (JChannel) cacheToKill.getRPCManager().getChannel();
      DISCARD discard = (DISCARD) channel.getProtocolStack().findProtocol(DISCARD.class);
      if (discard != null)
      {
         discard.setDiscardAll(true);
         TestingUtil.blockUntilViewReceived(anotherCache, finalExpectedClusterSize, 10000, false);
         // an extra second, for some reason we need this.
         TestingUtil.sleepThread(1000);
      }
   }

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Examples of org.jgroups.protocols.DISCARD

   private static void crashCacheManagers(EmbeddedCacheManager... cacheManagers) {
      for (EmbeddedCacheManager cm : cacheManagers) {
         JGroupsTransport t = (JGroupsTransport) cm.getGlobalComponentRegistry().getComponent(Transport.class);
         Channel channel = t.getChannel();
         try {
            DISCARD discard = new DISCARD();
            discard.setDiscardAll(true);
            channel.getProtocolStack().insertProtocol(discard, ProtocolStack.ABOVE, TP.class);
         } catch (Exception e) {
            log.warn("Problems inserting discard", e);
            throw new RuntimeException(e);
         }

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Examples of org.jgroups.protocols.DISCARD

               if (c.getAddress().equals(a)) inThisPartition = true;
            }
            if (!inThisPartition) outsideMembers.add(a);
         }
         for (Channel c : channels) {
            DISCARD discard = new DISCARD();
            for (Address a : outsideMembers) discard.addIgnoreMember(a);
            try {
               c.getProtocolStack().insertProtocol(discard, ProtocolStack.ABOVE, TP.class);
            } catch (Exception e) {
               throw new RuntimeException(e);
            }

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Examples of org.jgroups.protocols.DISCARD


   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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Examples of org.jgroups.protocols.DISCARD

            fork(new Callable<Void>() {
               @Override
               public Void call() throws Exception {
                  log.info("KILLING the c1 cache");
                  try {
                     DISCARD d3 = TestingUtil.getDiscardForCache(c1);
                     d3.setDiscardAll(true);
                     d3.setExcludeItself(true);
                     TestingUtil.killCacheManagers(manager(c1));
                  } catch (Exception e) {
                     log.info("there was some exception while killing cache");
                  }
                  return null;

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