start.row = s2bb(tableId + ";");
Key end = new Key();
end.row = s2bb(tableId + "<");
end = client.getFollowing(end, PartialKey.ROW);
ScanOptions opt = new ScanOptions();
opt.range = new Range(start, true, end, false);
opt.columns = Collections.singletonList(new ScanColumn(s2bb("file")));
String scanner = client.createScanner(creds, Constants.METADATA_TABLE_NAME, opt);
int result = 0;
while (true) {
ScanResult more = client.nextK(scanner, 100);