protected byte[][] makeN(byte[] base, int n) {
    if (n > 256) {
      return makeNBig(base, n);
    }
    byte[][] ret = new byte[n][];
    for (int i = 0; i < n; i++) {
      ret[i] = Bytes.add(base, new byte[] { (byte) i });
    }
    return ret;
  }
Split table into multiple regions.
@param t Table to split.
@return Map of regions to servers.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/FromClientSideBase.java