Examples with ViewId org.jgroups.ViewId used on opensource projects

Example 1 with ViewId

use of org.jgroups.ViewId in project geode by apache.

the class JGroupsMessenger method start.

@Override
@edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD")
public void start() {
    // create the configuration XML string for JGroups
    String properties = this.jgStackConfig;
    long start = System.currentTimeMillis();
    // start the jgroups channel and establish the membership ID
    boolean reconnecting = false;
    try {
        Object oldChannel = services.getConfig().getTransport().getOldDSMembershipInfo();
        if (oldChannel != null) {
            logger.debug("Reusing JGroups channel from previous system", properties);
            myChannel = (JChannel) oldChannel;
            // scrub the old channel
            ViewId vid = new ViewId(new JGAddress(), 0);
            View jgv = new View(vid, new ArrayList<>());
            this.myChannel.down(new Event(Event.VIEW_CHANGE, jgv));
            UUID logicalAddress = (UUID) myChannel.getAddress();
            if (logicalAddress instanceof JGAddress) {
                ((JGAddress) logicalAddress).setVmViewId(-1);
            }
            reconnecting = true;
        } else {
            logger.debug("JGroups configuration: {}", properties);
            checkForIPv6();
            InputStream is = new ByteArrayInputStream(properties.getBytes("UTF-8"));
            myChannel = new JChannel(is);
        }
    } catch (Exception e) {
        throw new GemFireConfigException("unable to create jgroups channel", e);
    }
    // give the stats to the jchannel statistics recorder
    StatRecorder sr = (StatRecorder) myChannel.getProtocolStack().findProtocol(StatRecorder.class);
    if (sr != null) {
        sr.setServices(services);
    }
    Transport transport = (Transport) myChannel.getProtocolStack().getTransport();
    transport.setMessenger(this);
    nackack2HeaderId = ClassConfigurator.getProtocolId(NAKACK2.class);
    try {
        myChannel.setReceiver(null);
        myChannel.setReceiver(new JGroupsReceiver());
        if (!reconnecting) {
            // apache g***** (whatever we end up calling it)
            myChannel.connect("AG");
        }
    } catch (Exception e) {
        myChannel.close();
        throw new SystemConnectException("unable to create jgroups channel", e);
    }
    if (JGroupsMessenger.THROW_EXCEPTION_ON_START_HOOK) {
        JGroupsMessenger.THROW_EXCEPTION_ON_START_HOOK = false;
        throw new SystemConnectException("failing for test");
    }
    establishLocalAddress();
    logger.info("JGroups channel {} (took {}ms)", (reconnecting ? "reinitialized" : "created"), System.currentTimeMillis() - start);
}

Example 2 with ViewId

use of org.jgroups.ViewId in project geode by apache.

the class JGroupsMessenger method installView.

@Override
public void installView(NetView v) {
    this.view = v;
    if (this.jgAddress.getVmViewId() < 0) {
        this.jgAddress.setVmViewId(this.localAddress.getVmViewId());
    }
    List<JGAddress> mbrs = new ArrayList<>(v.size());
    mbrs.addAll(v.getMembers().stream().map(JGAddress::new).collect(Collectors.toList()));
    ViewId vid = new ViewId(new JGAddress(v.getCoordinator()), v.getViewId());
    View jgv = new View(vid, new ArrayList<>(mbrs));
    logger.trace("installing JGroups view: {}", jgv);
    this.myChannel.down(new Event(Event.VIEW_CHANGE, jgv));
    addressesWithIoExceptionsProcessed.clear();
    if (encrypt != null) {
        encrypt.installView(v);
    }
    synchronized (scheduledMcastSeqnos) {
        for (DistributedMember mbr : v.getCrashedMembers()) {
            scheduledMcastSeqnos.remove(mbr);
        }
        for (DistributedMember mbr : v.getShutdownMembers()) {
            scheduledMcastSeqnos.remove(mbr);
        }
    }
}

Example 3 with ViewId

use of org.jgroups.ViewId in project JGroups by belaban.

the class ViewTest method testEquals2.

public void testEquals2() {
    View v1 = new View(new ViewId(a, 12345), new ArrayList<>(members));
    View v2 = new View(a, 12345, new ArrayList<>(members));
    assert v1.equals(v2);
    View v3 = new View(a, 12543, new ArrayList<>(members));
    assert !v1.equals(v3);
}

Example 4 with ViewId

use of org.jgroups.ViewId in project JGroups by belaban.

the class ViewIdTest method setUp.

@BeforeClass
void setUp() throws UnknownHostException {
    v1 = new ViewId(Util.createRandomAddress("A"), 22);
    v2 = new ViewId(Util.createRandomAddress("B"), 21);
    v3 = v1.copy();
    v4 = new ViewId(Util.createRandomAddress("C"), 22);
}

Example 5 with ViewId

use of org.jgroups.ViewId in project JGroups by belaban.

the class LargeMergeTest method testClusterFormationAfterMerge.

public void testClusterFormationAfterMerge() {
    System.out.println("\nEnabling message traffic between members to start the merge");
    for (JChannel ch : channels) {
        DISCARD discard = ch.getProtocolStack().findProtocol(DISCARD.class);
        discard.discardAll(false);
    }
    boolean merge_completed = true;
    for (int i = 0; i < NUM; i++) {
        merge_completed = true;
        System.out.println();
        Map<ViewId, Integer> views = new HashMap<>();
        for (JChannel ch : channels) {
            ViewId view_id = ch.getView().getViewId();
            Integer val = views.get(view_id);
            views.put(view_id, val == null ? 1 : val + 1);
            int size = ch.getView().size();
            if (size != NUM)
                merge_completed = false;
        }
        if (i++ > 0) {
            int num_singleton_views = 0;
            for (Map.Entry<ViewId, Integer> entry : views.entrySet()) {
                if (entry.getValue() == 1)
                    num_singleton_views++;
                else {
                    System.out.println("==> " + entry.getKey() + ": " + entry.getValue() + " members");
                }
            }
            if (num_singleton_views > 0)
                System.out.println("==> " + num_singleton_views + " singleton views");
            System.out.println("------------------\n" + getStats());
        }
        if (merge_completed)
            break;
        Util.sleep(5000);
    }
    if (!merge_completed) {
        System.out.println("\nFinal cluster:");
        for (JChannel ch : channels) {
            int size = ch.getView().size();
            System.out.println(ch.getAddress() + ": " + size + " members - " + (size == NUM ? "OK" : "FAIL"));
        }
    }
    for (JChannel ch : channels) {
        int size = ch.getView().size();
        assert size == NUM : "Channel has " + size + " members, but should have " + NUM;
    }
}