Examples with ClusterMemberLeadership com.netflix.titus.api.clustermembership.model.ClusterMemberLeadership used on opensource projects

Example 6 with ClusterMemberLeadership

use of com.netflix.titus.api.clustermembership.model.ClusterMemberLeadership in project titus-control-plane by Netflix.

the class MultiNodeClusterMemberResolver method buildSnapshot.

private ClusterMembershipSnapshot buildSnapshot() {
    if (memberResolversByIpAddress.isEmpty()) {
        return ClusterMembershipSnapshot.empty();
    }
    List<ClusterMembershipSnapshot> healthySnapshots = findHealthySnapshots();
    ClusterMembershipSnapshot.Builder builder = ClusterMembershipSnapshot.newBuilder();
    Map<String, List<ClusterMembershipRevision<ClusterMember>>> grouped = healthySnapshots.stream().flatMap(snapshot -> snapshot.getMemberRevisions().values().stream()).collect(Collectors.groupingBy(m -> m.getCurrent().getMemberId()));
    List<ClusterMembershipRevision<ClusterMember>> recentRevisions = grouped.values().stream().map(this::findBestMemberRevision).collect(Collectors.toList());
    builder.withMemberRevisions(recentRevisions);
    // Find leader
    Optional<ClusterMembershipRevision<ClusterMemberLeadership>> recentLeader = Optional.empty();
    for (ClusterMembershipSnapshot snapshot : healthySnapshots) {
        if (snapshot.getLeaderRevision().isPresent()) {
            if (recentLeader.isPresent()) {
                if (recentLeader.get().getRevision() < snapshot.getLeaderRevision().get().getRevision()) {
                    recentLeader = snapshot.getLeaderRevision();
                }
            } else {
                recentLeader = snapshot.getLeaderRevision();
            }
        }
    }
    recentLeader.ifPresent(builder::withLeaderRevision);
    // Choose latest version of each
    long minStaleness = healthySnapshots.stream().mapToLong(ClusterMembershipSnapshot::getStalenessMs).min().orElse(0);
    builder.withStalenessMs(minStaleness);
    return builder.build();
}

Example 7 with ClusterMemberLeadership

use of com.netflix.titus.api.clustermembership.model.ClusterMemberLeadership in project titus-control-plane by Netflix.

the class MultiNodeClusterMemberResolverMetrics method updateSnapshot.

void updateSnapshot(ClusterMembershipSnapshot snapshot) {
    // Members
    snapshot.getMemberRevisions().forEach((memberId, revision) -> {
        if (!knownMembers.containsKey(memberId)) {
            knownMembers.put(memberId, new KnownMember(memberId));
        }
    });
    Set<String> toRemove = CollectionsExt.copyAndRemove(knownMembers.keySet(), snapshot.getMemberRevisions().keySet());
    toRemove.forEach(memberIp -> knownMembers.remove(memberIp).close());
    // Leader
    ClusterMemberLeadership currentLeader = snapshot.getLeaderRevision().map(ClusterMembershipRevision::getCurrent).orElse(null);
    if (currentLeader != null) {
        if (leader == null) {
            this.leader = new Leader(currentLeader);
        } else {
            if (!leader.getMemberId().equals(currentLeader.getMemberId())) {
                leader.close();
                this.leader = new Leader(currentLeader);
            }
        }
    } else if (leader != null) {
        leader.close();
        leader = null;
    }
}