presto-main/src/main/java/io/prestosql/connector/ConnectorAwareNodeManager.java/ConnectorAwareNodeManager/getAllNodes
class ConnectorAwareNodeManager:    @Override
    public Set<Node> getAllNodes()
    {
        return ImmutableSet.<Node>builder()
                .addAll(getWorkerNodes())
                .addAll(nodeManager.getCoordinators())
                .build();
    }