/** Returns the changes comparing this nodes to the provided nodes. */
public Delta delta(DiscoveryNodes other) {
List<DiscoveryNode> removed = newArrayList();
List<DiscoveryNode> added = newArrayList();
for (DiscoveryNode node : other) {
if (!this.nodeExists(node.id())) {
removed.add(node);
}
}
for (DiscoveryNode node : this) {
if (!other.nodeExists(node.id())) {
added.add(node);
}
}
DiscoveryNode previousMasterNode = null;
DiscoveryNode newMasterNode = null;
if (masterNodeId != null) {
if (other.masterNodeId == null || !other.masterNodeId.equals(masterNodeId)) {
previousMasterNode = other.masterNode();
newMasterNode = masterNode();
}
}
return new Delta(
previousMasterNode,
newMasterNode,
localNodeId,
ImmutableList.copyOf(removed),
ImmutableList.copyOf(added));
}
private Map<DiscoveryNode, TransportNodesListShardStoreMetaData.StoreFilesMetaData>
buildShardStores(DiscoveryNodes nodes, MutableShardRouting shard) {
Map<DiscoveryNode, TransportNodesListShardStoreMetaData.StoreFilesMetaData> shardStores =
cachedStores.get(shard.shardId());
ObjectOpenHashSet<String> nodesIds;
if (shardStores == null) {
shardStores = Maps.newHashMap();
cachedStores.put(shard.shardId(), shardStores);
nodesIds = ObjectOpenHashSet.from(nodes.dataNodes().keys());
} else {
nodesIds = ObjectOpenHashSet.newInstance();
// clean nodes that have failed
for (Iterator<DiscoveryNode> it = shardStores.keySet().iterator(); it.hasNext(); ) {
DiscoveryNode node = it.next();
if (!nodes.nodeExists(node.id())) {
it.remove();
}
}
for (ObjectCursor<DiscoveryNode> cursor : nodes.dataNodes().values()) {
DiscoveryNode node = cursor.value;
if (!shardStores.containsKey(node)) {
nodesIds.add(node.id());
}
}
}
if (!nodesIds.isEmpty()) {
String[] nodesIdsArray = nodesIds.toArray(String.class);
TransportNodesListShardStoreMetaData.NodesStoreFilesMetaData nodesStoreFilesMetaData =
listShardStoreMetaData
.list(shard.shardId(), false, nodesIdsArray, listTimeout)
.actionGet();
if (logger.isTraceEnabled()) {
if (nodesStoreFilesMetaData.failures().length > 0) {
StringBuilder sb =
new StringBuilder(shard + ": failures when trying to list stores on nodes:");
for (int i = 0; i < nodesStoreFilesMetaData.failures().length; i++) {
Throwable cause = ExceptionsHelper.unwrapCause(nodesStoreFilesMetaData.failures()[i]);
if (cause instanceof ConnectTransportException) {
continue;
}
sb.append("\n -> ")
.append(nodesStoreFilesMetaData.failures()[i].getDetailedMessage());
}
logger.trace(sb.toString());
}
}
for (TransportNodesListShardStoreMetaData.NodeStoreFilesMetaData nodeStoreFilesMetaData :
nodesStoreFilesMetaData) {
if (nodeStoreFilesMetaData.storeFilesMetaData() != null) {
shardStores.put(
nodeStoreFilesMetaData.getNode(), nodeStoreFilesMetaData.storeFilesMetaData());
}
}
}
return shardStores;
}
public ImmutableList<TransportAddress> transportAddresses() {
ImmutableList.Builder<TransportAddress> lstBuilder = ImmutableList.builder();
for (DiscoveryNode listedNode : listedNodes) {
lstBuilder.add(listedNode.address());
}
return lstBuilder.build();
}
@Override
public void run() {
// master node will check against all nodes if its alive with certain discoveries
// implementations,
// but we can't rely on that, so we check on it as well
for (DiscoveryNode node : clusterState.nodes()) {
if (lifecycle.stoppedOrClosed()) {
return;
}
if (!nodeRequiresConnection(node)) {
continue;
}
if (clusterState
.nodes()
.nodeExists(
node
.id())) { // we double check existence of node since connectToNode might take
// time...
if (!transportService.nodeConnected(node)) {
try {
transportService.connectToNode(node);
} catch (Exception e) {
if (lifecycle.stoppedOrClosed()) {
return;
}
if (clusterState
.nodes()
.nodeExists(node.id())) { // double check here as well, maybe its gone?
logger.warn("failed to reconnect to node {}", e, node);
}
}
}
}
}
}
public DiscoveryNode findByAddress(TransportAddress address) {
for (DiscoveryNode node : nodes.values()) {
if (node.address().equals(address)) {
return node;
}
}
return null;
}
public DiscoveryNodes removeDeadMembers(Set<String> newNodes, String masterNodeId) {
Builder builder = new Builder().masterNodeId(masterNodeId).localNodeId(localNodeId);
for (DiscoveryNode node : this) {
if (newNodes.contains(node.id())) {
builder.put(node);
}
}
return builder.build();
}
public void verify(
String repository, String verificationToken, final ActionListener<VerifyResponse> listener) {
final DiscoveryNodes discoNodes = clusterService.state().nodes();
final DiscoveryNode localNode = discoNodes.localNode();
final ObjectContainer<DiscoveryNode> masterAndDataNodes =
discoNodes.masterAndDataNodes().values();
final List<DiscoveryNode> nodes = newArrayList();
for (ObjectCursor<DiscoveryNode> cursor : masterAndDataNodes) {
DiscoveryNode node = cursor.value;
Version version = node.getVersion();
// Verification wasn't supported before v1.4.0 - no reason to send verification request to
// these nodes
if (version != null && version.onOrAfter(Version.V_1_4_0)) {
nodes.add(node);
}
}
final CopyOnWriteArrayList<VerificationFailure> errors = new CopyOnWriteArrayList<>();
final AtomicInteger counter = new AtomicInteger(nodes.size());
for (final DiscoveryNode node : nodes) {
if (node.equals(localNode)) {
try {
doVerify(repository, verificationToken);
} catch (Throwable t) {
logger.warn("[{}] failed to verify repository", t, repository);
errors.add(new VerificationFailure(node.id(), ExceptionsHelper.detailedMessage(t)));
}
if (counter.decrementAndGet() == 0) {
finishVerification(listener, nodes, errors);
}
} else {
transportService.sendRequest(
node,
ACTION_NAME,
new VerifyNodeRepositoryRequest(repository, verificationToken),
new EmptyTransportResponseHandler(ThreadPool.Names.SAME) {
@Override
public void handleResponse(TransportResponse.Empty response) {
if (counter.decrementAndGet() == 0) {
finishVerification(listener, nodes, errors);
}
}
@Override
public void handleException(TransportException exp) {
errors.add(
new VerificationFailure(node.id(), ExceptionsHelper.detailedMessage(exp)));
if (counter.decrementAndGet() == 0) {
finishVerification(listener, nodes, errors);
}
}
});
}
}
}
public static void writeTo(DiscoveryNodes nodes, StreamOutput out) throws IOException {
if (nodes.masterNodeId() == null) {
out.writeBoolean(false);
} else {
out.writeBoolean(true);
out.writeUTF(nodes.masterNodeId);
}
out.writeVInt(nodes.size());
for (DiscoveryNode node : nodes) {
node.writeTo(out);
}
}
public boolean hasEnoughMasterNodes(Iterable<DiscoveryNode> nodes) {
if (minimumMasterNodes < 1) {
return true;
}
int count = 0;
for (DiscoveryNode node : nodes) {
if (node.masterNode()) {
count++;
}
}
return count >= minimumMasterNodes;
}
private void updateMappingOnMaster(final String index, final String type) {
try {
MapperService mapperService = indicesService.indexServiceSafe(index).mapperService();
final DocumentMapper documentMapper = mapperService.documentMapper(type);
if (documentMapper == null) { // should not happen
return;
}
IndexMetaData metaData = clusterService.state().metaData().index(index);
if (metaData == null) {
return;
}
long orderId = mappingUpdatedAction.generateNextMappingUpdateOrder();
documentMapper.refreshSource();
DiscoveryNode node = clusterService.localNode();
final MappingUpdatedAction.MappingUpdatedRequest request =
new MappingUpdatedAction.MappingUpdatedRequest(
index,
metaData.uuid(),
type,
documentMapper.mappingSource(),
orderId,
node != null ? node.id() : null);
mappingUpdatedAction.execute(
request,
new ActionListener<MappingUpdatedAction.MappingUpdatedResponse>() {
@Override
public void onResponse(
MappingUpdatedAction.MappingUpdatedResponse mappingUpdatedResponse) {
// all is well
}
@Override
public void onFailure(Throwable e) {
try {
logger.warn(
"failed to update master on updated mapping for index [{}], type [{}] and source [{}]",
e,
index,
type,
documentMapper.mappingSource().string());
} catch (IOException e1) {
// ignore
}
}
});
} catch (Exception e) {
logger.warn(
"failed to update master on updated mapping for index [{}], type [{}]", e, index, type);
}
}
public void addNodeInfo(NodeInfo nodeInfo) {
total++;
DiscoveryNode node = nodeInfo.getNode();
if (node.masterNode()) {
if (node.dataNode()) {
masterData++;
} else {
masterOnly++;
}
} else if (node.dataNode()) {
dataOnly++;
} else if (node.clientNode()) {
client++;
}
}
private List<DiscoveryNode> sortedMasterNodes(Iterable<DiscoveryNode> nodes) {
List<DiscoveryNode> possibleNodes = CollectionUtils.iterableAsArrayList(nodes);
if (possibleNodes.isEmpty()) {
return null;
}
// clean non master nodes
for (Iterator<DiscoveryNode> it = possibleNodes.iterator(); it.hasNext(); ) {
DiscoveryNode node = it.next();
if (!node.masterNode()) {
it.remove();
}
}
CollectionUtil.introSort(possibleNodes, nodeComparator);
return possibleNodes;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("routingNode ([");
sb.append(node.getName());
sb.append("][");
sb.append(node.getId());
sb.append("][");
sb.append(node.getHostName());
sb.append("][");
sb.append(node.getHostAddress());
sb.append("], [");
sb.append(shards.size());
sb.append(" assigned shards])");
return sb.toString();
}
/** Returns a set of nodes that have at least one shard of the given index. */
public synchronized Set<String> nodesInclude(String index) {
if (clusterService().state().routingTable().hasIndex(index)) {
List<ShardRouting> allShards = clusterService().state().routingTable().allShards(index);
DiscoveryNodes discoveryNodes = clusterService().state().getNodes();
Set<String> nodes = new HashSet<String>();
for (ShardRouting shardRouting : allShards) {
if (shardRouting.assignedToNode()) {
DiscoveryNode discoveryNode = discoveryNodes.get(shardRouting.currentNodeId());
nodes.add(discoveryNode.getName());
}
}
return nodes;
}
return Collections.emptySet();
}
public String shortSummary() {
StringBuilder sb = new StringBuilder();
if (!removed() && masterNodeChanged()) {
if (newMasterNode.id().equals(localNodeId)) {
// we are the master, no nodes we removed, we are actually the first master
sb.append("new_master ").append(newMasterNode());
} else {
// we are not the master, so we just got this event. No nodes were removed, so its not a
// *new* master
sb.append("detected_master ").append(newMasterNode());
}
} else {
if (masterNodeChanged()) {
sb.append("master {new ").append(newMasterNode());
if (previousMasterNode() != null) {
sb.append(", previous ").append(previousMasterNode());
}
sb.append("}");
}
if (removed()) {
if (masterNodeChanged()) {
sb.append(", ");
}
sb.append("removed {");
for (DiscoveryNode node : removedNodes()) {
sb.append(node).append(',');
}
sb.append("}");
}
}
if (added()) {
// don't print if there is one added, and it is us
if (!(addedNodes().size() == 1 && addedNodes().get(0).id().equals(localNodeId))) {
if (removed() || masterNodeChanged()) {
sb.append(", ");
}
sb.append("added {");
for (DiscoveryNode node : addedNodes()) {
if (!node.id().equals(localNodeId)) {
// don't print ourself
sb.append(node).append(',');
}
}
sb.append("}");
}
}
return sb.toString();
}
@Override
public void onNodeAck(DiscoveryNode node, @Nullable Exception e) {
if (!ackedTaskListener.mustAck(node)) {
// we always wait for the master ack anyway
if (!node.equals(nodes.getMasterNode())) {
return;
}
}
if (e == null) {
logger.trace(
"ack received from node [{}], cluster_state update (version: {})",
node,
clusterStateVersion);
} else {
this.lastFailure = e;
logger.debug(
(Supplier<?>)
() ->
new ParameterizedMessage(
"ack received from node [{}], cluster_state update (version: {})",
node,
clusterStateVersion),
e);
}
if (countDown.countDown()) {
logger.trace(
"all expected nodes acknowledged cluster_state update (version: {})",
clusterStateVersion);
FutureUtils.cancel(ackTimeoutCallback);
ackedTaskListener.onAllNodesAcked(lastFailure);
}
}
private void handleTransportDisconnect(DiscoveryNode node) {
if (!latestNodes.nodeExists(node.id())) {
return;
}
NodeFD nodeFD = nodesFD.remove(node);
if (nodeFD == null) {
return;
}
if (!running) {
return;
}
nodeFD.running = false;
if (connectOnNetworkDisconnect) {
try {
transportService.connectToNode(node);
nodesFD.put(node, new NodeFD());
threadPool.schedule(pingInterval, ThreadPool.Names.SAME, new SendPingRequest(node));
} catch (Exception e) {
logger.trace("[node ] [{}] transport disconnected (with verified connect)", node);
notifyNodeFailure(node, "transport disconnected (with verified connect)");
}
} else {
logger.trace("[node ] [{}] transport disconnected", node);
notifyNodeFailure(node, "transport disconnected");
}
}
private ClusterState rejoin(ClusterState clusterState, String reason) {
logger.warn(reason + ", current nodes: {}", clusterState.nodes());
nodesFD.stop();
masterFD.stop(reason);
master = false;
ClusterBlocks clusterBlocks =
ClusterBlocks.builder()
.blocks(clusterState.blocks())
.addGlobalBlock(NO_MASTER_BLOCK)
.addGlobalBlock(GatewayService.STATE_NOT_RECOVERED_BLOCK)
.build();
// clear the routing table, we have no master, so we need to recreate the routing when we reform
// the cluster
RoutingTable routingTable = RoutingTable.builder().build();
// we also clean the metadata, since we are going to recover it if we become master
MetaData metaData = MetaData.builder().build();
// clean the nodes, we are now not connected to anybody, since we try and reform the cluster
latestDiscoNodes =
new DiscoveryNodes.Builder().put(localNode).localNodeId(localNode.id()).build();
asyncJoinCluster();
return ClusterState.builder(clusterState)
.blocks(clusterBlocks)
.nodes(latestDiscoNodes)
.routingTable(routingTable)
.metaData(metaData)
.build();
}
private void sendNodeRequest(
final DiscoveryNode node, List<ShardRouting> shards, final int nodeIndex) {
try {
NodeRequest nodeRequest = new NodeRequest(node.getId(), request, shards);
transportService.sendRequest(
node,
transportNodeBroadcastAction,
nodeRequest,
new BaseTransportResponseHandler<NodeResponse>() {
@Override
public NodeResponse newInstance() {
return new NodeResponse();
}
@Override
public void handleResponse(NodeResponse response) {
onNodeResponse(node, nodeIndex, response);
}
@Override
public void handleException(TransportException exp) {
onNodeFailure(node, nodeIndex, exp);
}
@Override
public String executor() {
return ThreadPool.Names.SAME;
}
});
} catch (Throwable e) {
onNodeFailure(node, nodeIndex, e);
}
}
/**
* Creates a cluster state where local node and master node can be specified
*
* @param localNode node in allNodes that is the local node
* @param masterNode node in allNodes that is the master node. Can be null if no master exists
* @param allNodes all nodes in the cluster
* @return cluster state
*/
public static ClusterState state(
DiscoveryNode localNode, DiscoveryNode masterNode, DiscoveryNode... allNodes) {
DiscoveryNodes.Builder discoBuilder = DiscoveryNodes.builder();
for (DiscoveryNode node : allNodes) {
discoBuilder.put(node);
}
if (masterNode != null) {
discoBuilder.masterNodeId(masterNode.getId());
}
discoBuilder.localNodeId(localNode.getId());
ClusterState.Builder state = ClusterState.builder(new ClusterName("test"));
state.nodes(discoBuilder);
state.metaData(MetaData.builder().generateClusterUuidIfNeeded());
return state.build();
}
private IndexShard newShard(
boolean primary, DiscoveryNode node, IndexMetaData indexMetaData, Path homePath)
throws IOException {
// add node name to settings for propper logging
final Settings nodeSettings = Settings.builder().put("node.name", node.getName()).build();
final IndexSettings indexSettings = new IndexSettings(indexMetaData, nodeSettings);
ShardRouting shardRouting =
TestShardRouting.newShardRouting(
shardId, node.getId(), primary, ShardRoutingState.INITIALIZING);
final Path path = Files.createDirectories(homePath.resolve(node.getId()));
final NodeEnvironment.NodePath nodePath = new NodeEnvironment.NodePath(path);
ShardPath shardPath =
new ShardPath(false, nodePath.resolve(shardId), nodePath.resolve(shardId), shardId);
Store store = createStore(indexSettings, shardPath);
IndexCache indexCache =
new IndexCache(indexSettings, new DisabledQueryCache(indexSettings), null);
MapperService mapperService =
MapperTestUtils.newMapperService(homePath, indexSettings.getSettings());
for (Map.Entry<String, String> type : indexMapping.entrySet()) {
mapperService.merge(
type.getKey(),
new CompressedXContent(type.getValue()),
MapperService.MergeReason.MAPPING_RECOVERY,
true);
}
SimilarityService similarityService =
new SimilarityService(indexSettings, Collections.emptyMap());
final IndexEventListener indexEventListener = new IndexEventListener() {};
final Engine.Warmer warmer = searcher -> {};
return new IndexShard(
shardRouting,
indexSettings,
shardPath,
store,
indexCache,
mapperService,
similarityService,
null,
null,
indexEventListener,
null,
threadPool,
BigArrays.NON_RECYCLING_INSTANCE,
warmer,
Collections.emptyList(),
Collections.emptyList());
}
/**
* Get info about current operation of this river. Used for REST management operations handling.
*
* @return String with JSON formatted info.
* @throws Exception
*/
@Override
public String getRiverOperationInfo(DiscoveryNode esNode, Date currentDate) throws Exception {
XContentBuilder builder = jsonBuilder().prettyPrint();
builder.startObject();
builder.field("river_name", riverName().getName());
builder.field("info_date", currentDate);
builder.startObject("indexing");
builder.field("state", closed ? "stopped" : "running");
if (!closed) builder.field("last_restart", lastRestartDate);
else if (permanentStopDate != null) builder.field("stopped_permanently", permanentStopDate);
builder.endObject();
if (esNode != null) {
builder.startObject("node");
builder.field("id", esNode.getId());
builder.field("name", esNode.getName());
builder.endObject();
}
if (coordinatorInstance != null) {
List<SpaceIndexingInfo> currProjectIndexingInfo =
coordinatorInstance.getCurrentSpaceIndexingInfo();
if (currProjectIndexingInfo != null) {
builder.startArray("current_indexing");
for (SpaceIndexingInfo pi : currProjectIndexingInfo) {
pi.buildDocument(builder, null, true, false);
}
builder.endArray();
}
}
List<String> pkeys = getAllIndexedSpaceKeys();
if (pkeys != null) {
builder.startArray("indexed_spaces");
for (String spaceKey : pkeys) {
builder.startObject();
builder.field(SpaceIndexingInfo.DOCFIELD_SPACE_KEY, spaceKey);
SpaceIndexingInfo lastIndexing = getLastSpaceIndexingInfo(spaceKey);
if (lastIndexing != null) {
builder.field("last_indexing");
lastIndexing.buildDocument(builder, null, false, true);
}
builder.endObject();
}
builder.endArray();
}
builder.endObject();
return builder.string();
}
@Inject
public LocalGatewayMetaState(
Settings settings,
ThreadPool threadPool,
NodeEnvironment nodeEnv,
TransportNodesListGatewayMetaState nodesListGatewayMetaState,
LocalAllocateDangledIndices allocateDangledIndices,
NodeIndexDeletedAction nodeIndexDeletedAction)
throws Exception {
super(settings);
this.nodeEnv = nodeEnv;
this.threadPool = threadPool;
this.format = XContentType.fromRestContentType(settings.get("format", "smile"));
this.allocateDangledIndices = allocateDangledIndices;
this.nodeIndexDeletedAction = nodeIndexDeletedAction;
nodesListGatewayMetaState.init(this);
if (this.format == XContentType.SMILE) {
Map<String, String> params = Maps.newHashMap();
params.put("binary", "true");
formatParams = new ToXContent.MapParams(params);
Map<String, String> globalOnlyParams = Maps.newHashMap();
globalOnlyParams.put("binary", "true");
globalOnlyParams.put(MetaData.PERSISTENT_ONLY_PARAM, "true");
globalOnlyParams.put(MetaData.GLOBAL_ONLY_PARAM, "true");
globalOnlyFormatParams = new ToXContent.MapParams(globalOnlyParams);
} else {
formatParams = ToXContent.EMPTY_PARAMS;
Map<String, String> globalOnlyParams = Maps.newHashMap();
globalOnlyParams.put(MetaData.PERSISTENT_ONLY_PARAM, "true");
globalOnlyParams.put(MetaData.GLOBAL_ONLY_PARAM, "true");
globalOnlyFormatParams = new ToXContent.MapParams(globalOnlyParams);
}
this.autoImportDangled =
AutoImportDangledState.fromString(
settings.get(
"gateway.local.auto_import_dangled", AutoImportDangledState.YES.toString()));
this.danglingTimeout =
settings.getAsTime("gateway.local.dangling_timeout", TimeValue.timeValueHours(2));
logger.debug(
"using gateway.local.auto_import_dangled [{}], with gateway.local.dangling_timeout [{}]",
this.autoImportDangled,
this.danglingTimeout);
if (DiscoveryNode.masterNode(settings)) {
try {
pre019Upgrade();
long start = System.currentTimeMillis();
loadState();
logger.debug(
"took {} to load state", TimeValue.timeValueMillis(System.currentTimeMillis() - start));
} catch (Exception e) {
logger.error("failed to read local state, exiting...", e);
throw e;
}
}
}
private boolean nodeRequiresConnection(DiscoveryNode node) {
if (localNode().clientNode()) {
if (node.clientNode()) {
return false;
}
}
return true;
}
public MockNode setAsMaster() {
this.clusterState =
ClusterState.builder(clusterState)
.nodes(
DiscoveryNodes.builder(clusterState.nodes()).masterNodeId(discoveryNode.getId()))
.build();
return this;
}
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
fromNode.writeTo(out);
out.writeVInt(indices.length);
for (IndexMetaData indexMetaData : indices) {
indexMetaData.writeTo(out);
}
}
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
fromNode = DiscoveryNode.readNode(in);
indices = new IndexMetaData[in.readVInt()];
for (int i = 0; i < indices.length; i++) {
indices[i] = IndexMetaData.Builder.readFrom(in);
}
}
/**
* Elects a new master out of the possible nodes, returning it. Returns <tt>null</tt> if no master
* has been elected.
*/
public DiscoveryNode electMaster(Iterable<DiscoveryNode> nodes) {
List<DiscoveryNode> sortedNodes = sortedMasterNodes(nodes);
if (sortedNodes == null || sortedNodes.isEmpty()) {
return null;
}
DiscoveryNode masterNode = sortedNodes.get(0);
// Sanity check: maybe we don't end up here, because serialization may have failed.
if (masterNode.getVersion().before(minMasterVersion)) {
logger.warn(
"ignoring master [{}], because the version [{}] is lower than the minimum compatible version [{}]",
masterNode,
masterNode.getVersion(),
minMasterVersion);
return null;
} else {
return masterNode;
}
}
@Override
public DiscoveryNodes nodes() {
DiscoveryNodes latestNodes = this.latestDiscoNodes;
if (latestNodes != null) {
return latestNodes;
}
// have not decided yet, just send the local node
return DiscoveryNodes.builder().put(localNode).localNodeId(localNode.id()).build();
}
private ClusterState handleJoinRequest(final DiscoveryNode node) {
if (!master) {
throw new ElasticsearchIllegalStateException(
"Node [" + localNode + "] not master for join request from [" + node + "]");
}
ClusterState state = clusterService.state();
if (!transportService.addressSupported(node.address().getClass())) {
// TODO, what should we do now? Maybe inform that node that its crap?
logger.warn("received a wrong address type from [{}], ignoring...", node);
} else {
// try and connect to the node, if it fails, we can raise an exception back to the client...
transportService.connectToNode(node);
state = clusterService.state();
// validate the join request, will throw a failure if it fails, which will get back to the
// node calling the join request
membership.sendValidateJoinRequestBlocking(node, state, pingTimeout);
clusterService.submitStateUpdateTask(
"zen-disco-receive(join from node[" + node + "])",
Priority.URGENT,
new ClusterStateUpdateTask() {
@Override
public ClusterState execute(ClusterState currentState) {
if (currentState.nodes().nodeExists(node.id())) {
// the node already exists in the cluster
logger.warn("received a join request for an existing node [{}]", node);
// still send a new cluster state, so it will be re published and possibly update
// the other node
return ClusterState.builder(currentState).build();
}
DiscoveryNodes.Builder builder = DiscoveryNodes.builder(currentState.nodes());
for (DiscoveryNode existingNode : currentState.nodes()) {
if (node.address().equals(existingNode.address())) {
builder.remove(existingNode.id());
logger.warn(
"received join request from node [{}], but found existing node {} with same address, removing existing node",
node,
existingNode);
}
}
latestDiscoNodes = builder.build();
// add the new node now (will update latestDiscoNodes on publish)
return ClusterState.builder(currentState)
.nodes(latestDiscoNodes.newNode(node))
.build();
}
@Override
public void onFailure(String source, Throwable t) {
logger.error("unexpected failure during [{}]", t, source);
}
});
}
return state;
}