Examples with CoreServerInfo org.neo4j.causalclustering.discovery.CoreServerInfo used on opensource projects

Example 6 with CoreServerInfo

use of org.neo4j.causalclustering.discovery.CoreServerInfo in project neo4j by neo4j.

the class RaftOutbound method send.

@Override
public void send(MemberId to, RaftMessage message) {
    Optional<ClusterId> clusterId = clusterIdentity.get();
    if (!clusterId.isPresent()) {
        log.warn("Attempting to send a message before bound to a cluster");
        return;
    }
    Optional<CoreServerInfo> coreServerInfo = coreTopologyService.coreServers().find(to);
    if (coreServerInfo.isPresent()) {
        outbound.send(coreServerInfo.get().getRaftServer(), new ClusterIdAwareMessage(clusterId.get(), message));
    } else {
        unknownAddressMonitor.logAttemptToSendToMemberWithNoKnownAddress(to);
    }
}

Example 7 with CoreServerInfo

use of org.neo4j.causalclustering.discovery.CoreServerInfo in project neo4j by neo4j.

the class UserDefinedConfigurationStrategy method upstreamDatabase.

@Override
public Optional<MemberId> upstreamDatabase() throws UpstreamDatabaseSelectionException {
    try {
        Filter<ServerInfo> filters = FilterConfigParser.parse(config.get(CausalClusteringSettings.user_defined_upstream_selection_strategy));
        Set<ServerInfo> possibleReaders = topologyService.readReplicas().members().entrySet().stream().map(entry -> new ServerInfo(entry.getValue().connectors().boltAddress(), entry.getKey(), entry.getValue().groups())).collect(Collectors.toSet());
        CoreTopology coreTopology = topologyService.coreServers();
        for (MemberId validCore : coreTopology.members().keySet()) {
            Optional<CoreServerInfo> coreServerInfo = coreTopology.find(validCore);
            if (coreServerInfo.isPresent()) {
                CoreServerInfo serverInfo = coreServerInfo.get();
                possibleReaders.add(new ServerInfo(serverInfo.connectors().boltAddress(), validCore, serverInfo.groups()));
            }
        }
        return filters.apply(possibleReaders).stream().map(ServerInfo::memberId).findAny();
    } catch (InvalidFilterSpecification invalidFilterSpecification) {
        return Optional.empty();
    }
}

Example 8 with CoreServerInfo

use of org.neo4j.causalclustering.discovery.CoreServerInfo in project neo4j by neo4j.

the class ClusterOverviewProcedure method apply.

@Override
public RawIterator<Object[], ProcedureException> apply(Context ctx, Object[] input) throws ProcedureException {
    List<ReadWriteEndPoint> endpoints = new ArrayList<>();
    CoreTopology coreTopology = topologyService.coreServers();
    Set<MemberId> coreMembers = coreTopology.members().keySet();
    MemberId leader = null;
    try {
        leader = leaderLocator.getLeader();
    } catch (NoLeaderFoundException e) {
        log.debug("No write server found. This can happen during a leader switch.");
    }
    for (MemberId memberId : coreMembers) {
        Optional<CoreServerInfo> coreServerInfo = coreTopology.find(memberId);
        if (coreServerInfo.isPresent()) {
            Role role = memberId.equals(leader) ? Role.LEADER : Role.FOLLOWER;
            endpoints.add(new ReadWriteEndPoint(coreServerInfo.get().connectors(), role, memberId.getUuid(), asList(coreServerInfo.get().groups())));
        } else {
            log.debug("No Address found for " + memberId);
        }
    }
    for (Map.Entry<MemberId, ReadReplicaInfo> readReplica : topologyService.readReplicas().members().entrySet()) {
        ReadReplicaInfo readReplicaInfo = readReplica.getValue();
        endpoints.add(new ReadWriteEndPoint(readReplicaInfo.connectors(), Role.READ_REPLICA, readReplica.getKey().getUuid(), asList(readReplicaInfo.groups())));
    }
    endpoints.sort(comparing(o -> o.addresses().toString()));
    return map((endpoint) -> new Object[] { endpoint.memberId().toString(), endpoint.addresses().uriList().stream().map(URI::toString).toArray(), endpoint.role().name(), endpoint.groups() }, asRawIterator(endpoints.iterator()));
}

Example 9 with CoreServerInfo

use of org.neo4j.causalclustering.discovery.CoreServerInfo in project neo4j by neo4j.

the class GetServersProcedureForSingleDC method coreReadEndPoints.

private Stream<AdvertisedSocketAddress> coreReadEndPoints() {
    Optional<AdvertisedSocketAddress> leader = leaderBoltAddress();
    Collection<CoreServerInfo> coreServerInfo = topologyService.coreServers().members().values();
    Stream<AdvertisedSocketAddress> boltAddresses = topologyService.coreServers().members().values().stream().map(extractBoltAddress());
    // if the leader is present and it is not alone filter it out from the read end points
    if (leader.isPresent() && coreServerInfo.size() > 1) {
        AdvertisedSocketAddress advertisedSocketAddress = leader.get();
        return boltAddresses.filter(address -> !advertisedSocketAddress.equals(address));
    }
    // or if we cannot locate the leader return all cores as read end points
    return boltAddresses;
}

Example 10 with CoreServerInfo

use of org.neo4j.causalclustering.discovery.CoreServerInfo in project neo4j by neo4j.

the class LegacyGetServersProcedure method coreReadEndPoints.

private Stream<AdvertisedSocketAddress> coreReadEndPoints() {
    Optional<AdvertisedSocketAddress> leader = leaderBoltAddress();
    Collection<CoreServerInfo> coreServerInfo = topologyService.coreServers().members().values();
    Stream<AdvertisedSocketAddress> boltAddresses = topologyService.coreServers().members().values().stream().map(extractBoltAddress());
    // if the leader is present and it is not alone filter it out from the read end points
    if (leader.isPresent() && coreServerInfo.size() > 1) {
        AdvertisedSocketAddress advertisedSocketAddress = leader.get();
        return boltAddresses.filter(address -> !advertisedSocketAddress.equals(address));
    }
    // or if we cannot locate the leader return all cores as read end points
    return boltAddresses;
}