Examples of org.jgroups.protocols.pbcast.STABLE

org.jgroups.protocols.pbcast.STABLE
Computes the broadcast messages that are stable; i.e., have been received by all members. Sends STABLE events up the stack when this is the case. This allows NAKACK to garbage collect messages that have been seen by all members.
Works as follows: periodically we mcast our highest seqnos (seen for each member) to the group. A stability vector, which maintains the highest seqno for each member and initially contains no data, is updated when such a message is received. The entry for a member P is computed set to min(entry[P], digest[P]). When messages from all members have been received, a stability message is mcast, which causes all members to send a STABLE event up the stack (triggering garbage collection in the NAKACK layer).
New: when max_bytes is exceeded (unless disabled by setting it to 0), a STABLE task will be started (unless it is already running). Design in docs/design/STABLE.txt @author Bela Ban

        .addProtocol(new MERGE2())
        .addProtocol(new FD_SOCK())
        .addProtocol(new FD_ALL().setValue("timeout", 12000).setValue("interval", 3000))
        .addProtocol(new VERIFY_SUSPECT()).addProtocol(new BARRIER())
        .addProtocol(new NAKACK()).addProtocol(new UNICAST2())
        .addProtocol(new STABLE()).addProtocol(new GMS())
        .addProtocol(new UFC()).addProtocol(new MFC())
        .addProtocol(new FRAG2());
    stack.init();
    
    channel.setReceiver(new ReceiverAdapter(){

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        .addProtocol(new MERGE2())
        .addProtocol(new FD_SOCK())
        .addProtocol(new FD_ALL().setValue("timeout", 12000).setValue("interval", 3000))
        .addProtocol(new VERIFY_SUSPECT()).addProtocol(new BARRIER())
        .addProtocol(new NAKACK()).addProtocol(new UNICAST2())
        .addProtocol(new STABLE()).addProtocol(new GMS())
        .addProtocol(new UFC()).addProtocol(new MFC())
        .addProtocol(new FRAG2());
    stack.init();

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        Protocol[] protocols={
          new SHARED_LOOPBACK(),
          new SHARED_LOOPBACK_PING().timeout(1000),
          new NAKACK2(),
          new UNICAST3(),
          new STABLE(),
          new GMS().joinTimeout(1000),
          new FRAG2().fragSize(8000),
        };


        if(additional_protocols == null)

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                                 new FD_ALL(),
                                 new VERIFY_SUSPECT(),
                                 new BARRIER(),
                                 new NAKACK2(),
                                 new UNICAST3(),
                                 new STABLE(),
                                 new GMS(),
                                 new UFC(),
                                 new MFC(),
                                 new FRAG2());

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    private static void modifyStack(JChannel ... channels) {
        for(JChannel ch: channels) {
            ProtocolStack stack=ch.getProtocolStack();
            STABLE stable=(STABLE)stack.findProtocol(STABLE.class);
            if(stable == null)
                throw new IllegalStateException("STABLE protocol was not found");
            stable.setDesiredAverageGossip(2000);
        }
    }

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                .addProtocol(new FD_ALL().setValue("timeout", 12000).setValue("interval", 3000))
                .addProtocol(new VERIFY_SUSPECT())
                .addProtocol(new BARRIER())
                .addProtocol(new NAKACK())
                .addProtocol(new UNICAST2())
                .addProtocol(new STABLE())
                .addProtocol(new GMS())
                .addProtocol(new UFC())
                .addProtocol(new MFC())
                .addProtocol(new FRAG2());
        stack.init();

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                .addProtocol(new FD_ALL().setValue("timeout", 12000).setValue("interval", 3000))
                .addProtocol(new VERIFY_SUSPECT())
                .addProtocol(new BARRIER())
                .addProtocol(new NAKACK())
                .addProtocol(new UNICAST2())
                .addProtocol(new STABLE())
                .addProtocol(new GMS())
                .addProtocol(new UFC())
                .addProtocol(new MFC())
                .addProtocol(new FRAG2());
        stack.init();

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            channels[i] = new JChannel(
                new TCP(),
                ping,
                new NAKACK2(),
                new UNICAST3(),
                new STABLE(),
                new GMS()
            );
            channels[i].setName(Character.toString((char) ('A' + i)));
            channels[i].connect(CLUSTER_NAME);
            channels[i].setReceiver(receivers[i] = new MyReceiver());

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        return new JChannel(new SHARED_LOOPBACK(),
                            new SHARED_LOOPBACK_PING(),
                            new MERGE3().setValue("min_interval", 2000).setValue("max_interval", 5000),
                            new NAKACK2().setValue("log_discard_msgs", false),
                            new UNICAST3(),
                            new STABLE(),
                            new GMS().joinTimeout(1000).setValue("view_bundling", true).setValue("max_bundling_time", 300)
                              .setValue("print_local_addr", false),
                            new FRAG2().fragSize(8000));


    }

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                                           new DISCARD().setValue("discard_all",true),
                                           new SHARED_LOOPBACK_PING(),
                                           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("leave_timeout",100)
                                             .setValue("merge_timeout",3000)
                                             .setValue("log_view_warnings",false)
                                             .setValue("view_ack_collection_timeout",50)

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