Examples with MemberId org.neo4j.causalclustering.identity.MemberId used on opensource projects

Example 51 with MemberId

use of org.neo4j.causalclustering.identity.MemberId in project neo4j by neo4j.

the class HazelcastClusterTopology method getCoreTopology.

static CoreTopology getCoreTopology(HazelcastInstance hazelcastInstance, Config config, Log log) {
    Map<MemberId, CoreServerInfo> coreMembers = emptyMap();
    boolean canBeBootstrapped = false;
    ClusterId clusterId = null;
    if (hazelcastInstance != null) {
        Set<Member> hzMembers = hazelcastInstance.getCluster().getMembers();
        canBeBootstrapped = canBeBootstrapped(hazelcastInstance, config);
        coreMembers = toCoreMemberMap(hzMembers, log, hazelcastInstance);
        clusterId = getClusterId(hazelcastInstance);
    } else {
        log.info("Cannot currently bind to distributed discovery service.");
    }
    return new CoreTopology(clusterId, canBeBootstrapped, coreMembers);
}

Example 52 with MemberId

use of org.neo4j.causalclustering.identity.MemberId in project neo4j by neo4j.

the class HazelcastClusterTopology method toCoreMemberMap.

static Map<MemberId, CoreServerInfo> toCoreMemberMap(Set<Member> members, Log log, HazelcastInstance hazelcastInstance) {
    Map<MemberId, CoreServerInfo> coreMembers = new HashMap<>();
    MultiMap<String, String> serverGroupsMMap = hazelcastInstance.getMultiMap(SERVER_GROUPS_MULTIMAP_NAME);
    for (Member member : members) {
        try {
            MemberId memberId = new MemberId(UUID.fromString(member.getStringAttribute(MEMBER_UUID)));
            CoreServerInfo coreServerInfo = new CoreServerInfo(socketAddress(member.getStringAttribute(RAFT_SERVER), AdvertisedSocketAddress::new), socketAddress(member.getStringAttribute(TRANSACTION_SERVER), AdvertisedSocketAddress::new), ClientConnectorAddresses.fromString(member.getStringAttribute(CLIENT_CONNECTOR_ADDRESSES)), asSet(serverGroupsMMap.get(memberId.getUuid().toString())));
            coreMembers.put(memberId, coreServerInfo);
        } catch (IllegalArgumentException e) {
            log.warn("Incomplete member attributes supplied from Hazelcast", e);
        }
    }
    return coreMembers;
}

Example 53 with MemberId

use of org.neo4j.causalclustering.identity.MemberId in project neo4j by neo4j.

the class ServerPoliciesPlugin method writeEndpoints.

private List<Endpoint> writeEndpoints(CoreTopology cores) {
    MemberId leader;
    try {
        leader = leaderLocator.getLeader();
    } catch (NoLeaderFoundException e) {
        return emptyList();
    }
    Optional<Endpoint> endPoint = cores.find(leader).map(extractBoltAddress()).map(Endpoint::write);
    return asList(endPoint);
}

Example 54 with MemberId

use of org.neo4j.causalclustering.identity.MemberId in project neo4j by neo4j.

the class ServerPoliciesPlugin method readEndpoints.

private List<Endpoint> readEndpoints(CoreTopology coreTopology, ReadReplicaTopology rrTopology, Policy policy) {
    Set<ServerInfo> possibleReaders = rrTopology.members().entrySet().stream().map(entry -> new ServerInfo(entry.getValue().connectors().boltAddress(), entry.getKey(), entry.getValue().groups())).collect(Collectors.toSet());
    if (allowReadsOnFollowers || possibleReaders.size() == 0) {
        Set<MemberId> validCores = coreTopology.members().keySet();
        try {
            MemberId leader = leaderLocator.getLeader();
            validCores = validCores.stream().filter(memberId -> !memberId.equals(leader)).collect(Collectors.toSet());
        } catch (NoLeaderFoundException ignored) {
        // we might end up using the leader for reading during this ttl, should be fine in general
        }
        for (MemberId validCore : validCores) {
            Optional<CoreServerInfo> coreServerInfo = coreTopology.find(validCore);
            if (coreServerInfo.isPresent()) {
                CoreServerInfo serverInfo = coreServerInfo.get();
                possibleReaders.add(new ServerInfo(serverInfo.connectors().boltAddress(), validCore, serverInfo.groups()));
            }
        }
    }
    Set<ServerInfo> readers = policy.apply(possibleReaders);
    return readers.stream().map(r -> Endpoint.read(r.boltAddress())).collect(Collectors.toList());
}

Example 55 with MemberId

use of org.neo4j.causalclustering.identity.MemberId in project neo4j by neo4j.

the class CatchUpTest method newMemberWithNoLogShouldCatchUpFromPeers.

@Test
public void newMemberWithNoLogShouldCatchUpFromPeers() throws Throwable {
    DirectNetworking net = new DirectNetworking();
    // given
    final MemberId leaderId = member(0);
    final MemberId sleepyId = member(2);
    final MemberId[] awakeMembers = { leaderId, member(1) };
    final MemberId[] allMembers = { leaderId, member(1), sleepyId };
    RaftTestFixture fixture = new RaftTestFixture(net, 3, allMembers);
    fixture.bootstrap(allMembers);
    fixture.members().withId(leaderId).raftInstance().installCoreState(new RaftCoreState(new MembershipEntry(0, new HashSet<>(Arrays.asList(allMembers)))));
    fixture.members().withId(leaderId).timeoutService().invokeTimeout(RaftMachine.Timeouts.ELECTION);
    net.processMessages();
    final MemberId leader = fixture.members().withId(leaderId).member();
    net.disconnect(sleepyId);
    // when
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(10)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(20)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(30)));
    fixture.members().withId(leaderId).raftInstance().handle(new Request(leader, valueOf(40)));
    net.processMessages();
    // then
    for (MemberId awakeMember : awakeMembers) {
        assertThat(integerValues(fixture.members().withId(awakeMember).raftLog()), hasItems(10, 20, 30, 40));
    }
    assertThat(integerValues(fixture.members().withId(sleepyId).raftLog()), empty());
    // when
    net.reconnect(sleepyId);
    // TODO: This needs an injectable/controllable timeout service for the log shipper.
    Thread.sleep(500);
    net.processMessages();
    // then
    assertThat(integerValues(fixture.members().withId(sleepyId).raftLog()), hasItems(10, 20, 30, 40));
}