final byte[] value = Bytes.toBytes("value_for_row_" + iRow +
"_cf_" + Bytes.toStringBinary(cf) + "_col_" + iCol + "_ts_" +
ts + "_random_" + rand.nextLong());
put.add(cf, qual, ts, value);
} else if (rand.nextDouble() < 0.8) {
del.deleteColumn(cf, qual, ts);
} else {
del.deleteColumns(cf, qual, ts);
}
}