double throughputRows = (double)numRows / scanTimer.elapsedTime(TimeUnit.SECONDS);
double throughputCells = (double)numCells / scanTimer.elapsedTime(TimeUnit.SECONDS);
System.out.println("HBase scan mapreduce: ");
System.out.println("total time to open scanner: " + scanOpenTimer.elapsedMillis() + " ms");
System.out.println("total time to scan: " + scanTimer.elapsedMillis() + " ms");
System.out.println("total bytes: " + totalBytes + " bytes ("
+ StringUtils.humanReadableInt(totalBytes) + ")");
System.out.println("throughput : " + StringUtils.humanReadableInt((long)throughput) + "B/s");
System.out.println("total rows : " + numRows);