private boolean normalizedNodeStateSimilarToIgnoringInitProgress(
            final NodeType nodeType, final NodeState lhs, final NodeState rhs)
    {
        final NodeState lhsNormalized = (lhs != null ? lhs : defaultUpNodeState(nodeType));
        final NodeState rhsNormalized = (rhs != null ? rhs : defaultUpNodeState(nodeType));

        return lhsNormalized.similarToIgnoringInitProgress(rhsNormalized);
    }
Parse a given cluster state string into a returned ClusterState instance, wrapping any
parse exceptions in a RuntimeException.
vdslib/src/main/java/com/yahoo/vdslib/state/ClusterState.java