/** Requests a tree from the given node, and returns the request that was sent. */
TreeRequest request(
String sessionid, InetAddress remote, Range range, String ksname, String cfname) {
TreeRequest request = new TreeRequest(sessionid, remote, range, new CFPair(ksname, cfname));
MessagingService.instance()
.sendOneWay(
TreeRequestVerbHandler.makeVerb(request, Gossiper.instance.getVersion(remote)), remote);
return request;
}