Examples of com.sleepycat.je.rep.NodeState

com.sleepycat.je.rep.NodeState
The current state of a replication node and the application this node is running in.
This includes the following information:
- the replication {@link ReplicatedEnvironment.State state} of this node
- the name of the current master, as known by this node
- the time when this node joined the replication group
- the latest transaction end (abort or commit) VLSN on this node
- the transaction end (abort or commit) VLSN on the master known by this node. The difference between transaction end VLSNs on the master versus on this node gives an indication of how current this node's data is. The gap in VLSN values indicates the number of replication records that must be processed by this node, to be caught up to the master.
- the number of feeders running on this node
- the system load average for the last minute
- The appState field is a byte array meant to hold information generated by the JE HA application, as provided by a registered {@link com.sleepycat.je.rep.AppStateMonitor}. Users are responsible for serializing and deserializing information for this field.
@since 5.0

            final String name = repNode.getName();
            try {
                DbPing ping = new DbPing(repNode,
                                         getGroupName(),
                                         socketConnectTimeout);
                NodeState state = ping.getNodeState();


                /*
                 * Send  a JoinGroupEvent if this node didn't issue a
                 * JoinGroupEvent before.
                 */
                if (nodeStates.get(name) == null) {
                    notifyGroupChange
                        (new GroupChangeEvent(repGroup,
                                              name,
                                              GroupChangeType.ADD));
                } else {
                    if (!nodeStates.get(name)) {
                        notifyJoin(new JoinGroupEvent(name,
                                                      state.getMasterName(),
                                                      state.getJoinTime()));
                    }
                }
            } catch (IOException e) {
                /* Increase the counter of this down node. */
                notifyMissedLeaveEvents(name);

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                              systemLoad);
        }


        /* Convert the response to the NodeState. */
        public NodeState convertToNodeState() {
            return new NodeState(nodeName,
                                 groupName,
                                 nodeState,
                                 masterName,
                                 jeVersion,
                                 joinTime,

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        permittedNodes.add("localhost:" + TEST_NODE_PORT);
        permittedNodes.add("localhost:" + getNextAvailable(TEST_NODE_PORT + 1));
        firstNode.setPermittedNodes(permittedNodes);


        ReplicatedEnvironmentFacade.ReplicationNodeImpl replicationNode = new ReplicatedEnvironmentFacade.ReplicationNodeImpl(TEST_NODE_NAME, TEST_NODE_HOST_PORT);
        NodeState nodeState = ReplicatedEnvironmentFacade.getRemoteNodeState(TEST_GROUP_NAME, replicationNode);


        ObjectMapper objectMapper = new ObjectMapper();


        Map<String, Object> settings = objectMapper.readValue(nodeState.getAppState(), Map.class);
        Collection<String> appStatePermittedNodes =  (Collection<String>)settings.get(ReplicatedEnvironmentFacade.PERMITTED_NODE_LIST);
        assertEquals("Unexpected permitted nodes", permittedNodes, new HashSet<String>(appStatePermittedNodes));
    }

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        Collection<String> permittedNodes = null;
        try
        {
            ReplicationNodeImpl node = new ReplicationNodeImpl(helperNodeName, helperHostPort);
            NodeState state = getRemoteNodeState(groupName, node);
            byte[] applicationState = state.getAppState();
            permittedNodes = convertApplicationStateBytesToPermittedNodeList(applicationState);
        }
        catch (IOException e)
        {
            throw new IllegalConfigurationException(String.format("Cannot connect to '%s'", helperHostPort), e);

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                Future<Void> future = _groupChangeExecutor.submit(new Callable<Void>()
                {
                    @Override
                    public Void call()
                    {
                        NodeState nodeStateObject = null;
                        try
                        {
                            nodeStateObject = getRemoteNodeState((String)_configuration.getGroupName(), node);
                        }
                        catch (IOException | ServiceConnectFailedException e )

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            {
                Map<String, ReplicatedEnvironment.State> currentGroupState = new HashMap<String, ReplicatedEnvironment.State>();
                for (Map.Entry<ReplicationNode, NodeState> entry : nodeStates.entrySet())
                {
                    ReplicationNode node = entry.getKey();
                    NodeState nodeState = entry.getValue();
                    ReplicatedEnvironment.State state = nodeState == null? ReplicatedEnvironment.State.UNKNOWN : nodeState.getNodeState();
                    currentGroupState.put(node.getName(), state);
                }
                boolean stateChanged = !_previousGroupState.equals(currentGroupState);
                _previousGroupState = currentGroupState;
                if (stateChanged && State.OPEN == _state.get())

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        permittedNodes.add("localhost:" + TEST_NODE_PORT);
        permittedNodes.add("localhost:" + _portHelper.getNextAvailable());
        firstNode.setPermittedNodes(permittedNodes);


        ReplicatedEnvironmentFacade.ReplicationNodeImpl replicationNode = new ReplicatedEnvironmentFacade.ReplicationNodeImpl(TEST_NODE_NAME, TEST_NODE_HOST_PORT);
        NodeState nodeState = ReplicatedEnvironmentFacade.getRemoteNodeState(TEST_GROUP_NAME, replicationNode, 5000);


        ObjectMapper objectMapper = new ObjectMapper();


        Map<String, Object> settings = objectMapper.readValue(nodeState.getAppState(), Map.class);
        Collection<String> appStatePermittedNodes =  (Collection<String>)settings.get(ReplicatedEnvironmentFacade.PERMITTED_NODE_LIST);
        assertEquals("Unexpected permitted nodes", permittedNodes, new HashSet<String>(appStatePermittedNodes));
    }

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com.sleepycat.je.rep.impl.BinaryNodeStateProtocol$BinaryNodeStateResponse

com.sleepycat.je.rep.monitor.Monitor$PingThread

org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacade

org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacade$RemoteNodeStateLearner

org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacadeTest

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