Examples with AddCPMemberOp com.hazelcast.cp.internal.raftop.metadata.AddCPMemberOp used on opensource projects

Example 1 with AddCPMemberOp

use of com.hazelcast.cp.internal.raftop.metadata.AddCPMemberOp in project hazelcast by hazelcast.

the class RaftService method promoteToCPMember.

public InternalCompletableFuture<Void> promoteToCPMember() {
    InternalCompletableFuture<Void> future = newCompletableFuture();
    if (!metadataGroupManager.isDiscoveryCompleted()) {
        return complete(future, new IllegalStateException("CP Subsystem discovery is not completed yet!"));
    }
    if (nodeEngine.getLocalMember().isLiteMember()) {
        return complete(future, new IllegalStateException("Lite members cannot be promoted to CP member!"));
    }
    if (getLocalCPMember() != null) {
        future.complete(null);
        return future;
    }
    MemberImpl localMember = nodeEngine.getLocalMember();
    // Local member may be recovered during restart, for instance via Hot Restart,
    // but Raft state cannot be recovered back.
    // That's why we generate a new UUID while promoting a member to CP.
    // This new UUID generation can be removed when Hot Restart allows to recover Raft state.
    CPMemberInfo member = new CPMemberInfo(newUnsecureUUID(), localMember.getAddress());
    logger.info("Adding new CP member: " + member);
    invocationManager.invoke(getMetadataGroupId(), new AddCPMemberOp(member)).whenCompleteAsync((response, t) -> {
        if (t == null) {
            metadataGroupManager.initPromotedCPMember(member);
            future.complete(null);
        } else {
            complete(future, t);
        }
    });
    return future;
}