Examples with RaftEndpoint com.hazelcast.cp.internal.raft.impl.RaftEndpoint used on opensource projects

Example 16 with RaftEndpoint

use of com.hazelcast.cp.internal.raft.impl.RaftEndpoint in project hazelcast by hazelcast.

the class MetadataRaftGroupManager method initMembershipChangeScheduleForLeavingMember.

private boolean initMembershipChangeScheduleForLeavingMember(long commitIndex, CPMemberInfo leavingMember) {
    List<CPGroupId> leavingGroupIds = new ArrayList<>();
    List<CPGroupMembershipChange> changes = new ArrayList<>();
    for (CPGroupInfo group : groups.values()) {
        CPGroupId groupId = group.id();
        if (!group.containsMember(leavingMember.toRaftEndpoint()) || group.status() == DESTROYED) {
            continue;
        }
        CPMemberInfo substitute = findSubstitute(group);
        RaftEndpoint substituteEndpoint = substitute != null ? substitute.toRaftEndpoint() : null;
        leavingGroupIds.add(groupId);
        changes.add(new CPGroupMembershipChange(groupId, group.getMembersCommitIndex(), group.memberImpls(), substituteEndpoint, leavingMember.toRaftEndpoint()));
    }
    if (changes.isEmpty()) {
        if (logger.isFineEnabled()) {
            logger.fine("Removing " + leavingMember + " directly since it is not present in any CP group.");
        }
        removeActiveMember(commitIndex, leavingMember);
        return true;
    }
    membershipChangeSchedule = MembershipChangeSchedule.forLeavingMember(singletonList(commitIndex), leavingMember, changes);
    if (logger.isFineEnabled()) {
        logger.info(leavingMember + " will be removed from " + changes);
    } else {
        logger.info(leavingMember + " will be removed from " + leavingGroupIds);
    }
    return false;
}

Example 17 with RaftEndpoint

use of com.hazelcast.cp.internal.raft.impl.RaftEndpoint in project hazelcast by hazelcast.

the class MetadataRaftGroupManager method createRaftGroup.

public CPGroupSummary createRaftGroup(String groupName, Collection<RaftEndpoint> groupEndpoints, long groupId) {
    checkFalse(equalsIgnoreCase(METADATA_CP_GROUP_NAME, groupName), groupName + " is reserved for internal usage!");
    checkMetadataGroupInitSuccessful();
    // keep configuration on every metadata node
    CPGroupInfo group = getRaftGroupByName(groupName);
    if (group != null) {
        if (group.memberCount() == groupEndpoints.size()) {
            if (logger.isFineEnabled()) {
                logger.fine("CP group " + groupName + " already exists.");
            }
            return group.toSummary(activeMembers);
        }
        String msg = group.id() + " already exists with a different size: " + group.memberCount();
        logger.severe(msg);
        throw new IllegalStateException(msg);
    }
    group = getRaftGroupById(groupId);
    if (group != null) {
        throw new CannotCreateRaftGroupException("Cannot create CP group: " + groupName + " with members: " + groupEndpoints + " because group index: " + groupId + " already belongs to " + group.name());
    }
    Map<UUID, CPMemberInfo> activeMembersMap = getActiveMembersMap();
    CPMemberInfo leavingMember = membershipChangeSchedule != null ? membershipChangeSchedule.getLeavingMember() : null;
    for (RaftEndpoint groupEndpoint : groupEndpoints) {
        if ((leavingMember != null && groupEndpoint.getUuid().equals(leavingMember.getUuid())) || !activeMembersMap.containsKey(groupEndpoint.getUuid())) {
            String msg = "Cannot create CP group: " + groupName + " since " + groupEndpoint + " is not active";
            if (logger.isFineEnabled()) {
                logger.fine(msg);
            }
            throw new CannotCreateRaftGroupException(msg);
        }
    }
    return createRaftGroup(new CPGroupInfo(new RaftGroupId(groupName, getGroupIdSeed(), groupId), groupEndpoints));
}

Example 18 with RaftEndpoint

use of com.hazelcast.cp.internal.raft.impl.RaftEndpoint in project hazelcast by hazelcast.

the class MetadataRaftGroupManager method createRaftGroup.

private CPGroupSummary createRaftGroup(CPGroupInfo group) {
    addRaftGroup(group);
    Map<UUID, CPMemberInfo> activeMembersMap = getActiveMembersMap();
    List<CPMemberInfo> members = new ArrayList<>();
    for (RaftEndpoint member : group.members()) {
        members.add(activeMembersMap.get(member.getUuid()));
    }
    logger.info("New " + group.id() + " is created with " + members);
    return group.toSummary(activeMembers);
}

Example 19 with RaftEndpoint

use of com.hazelcast.cp.internal.raft.impl.RaftEndpoint in project hazelcast by hazelcast.

the class RaftService method getLeadedGroups.

public Collection<CPGroupId> getLeadedGroups() {
    Collection<CPGroupId> groupIds = new ArrayList<>();
    RaftEndpoint localEndpoint = getLocalCPEndpoint();
    for (RaftNode raftNode : nodes.values()) {
        if (CPGroup.METADATA_CP_GROUP_NAME.equals(raftNode.getGroupId().getName())) {
            // Ignore metadata group
            continue;
        }
        RaftEndpoint leader = raftNode.getLeader();
        if (leader != null && leader.equals(localEndpoint)) {
            groupIds.add(raftNode.getGroupId());
        }
    }
    return groupIds;
}

Example 20 with RaftEndpoint

use of com.hazelcast.cp.internal.raft.impl.RaftEndpoint in project hazelcast by hazelcast.

the class CPGroupInfo method toSummary.

CPGroupSummary toSummary(Collection<CPMemberInfo> cpMembers) {
    Map<UUID, CPMemberInfo> cpMembersMap = new HashMap<>();
    for (CPMemberInfo cpMember : cpMembers) {
        cpMembersMap.put(cpMember.getUuid(), cpMember);
    }
    // we should preserve the member ordering so we iterate over group members instead of all cp members
    List<CPMember> groupEndpoints = new ArrayList<>();
    for (RaftEndpoint endpoint : members) {
        CPMemberInfo memberInfo = cpMembersMap.get(endpoint.getUuid());
        if (memberInfo == null) {
            continue;
        }
        groupEndpoints.add(memberInfo);
    }
    if (groupEndpoints.size() != members.size()) {
        throw new IllegalStateException("Missing CP member in active CP members: " + cpMembers + " for " + this);
    }
    return new CPGroupSummary(id, status, initialMembers, groupEndpoints);
}