ColumnAgeOffFilter a = new ColumnAgeOffFilter();
HashMap<String,String> options = new HashMap<String,String>();
options.put("a", "901");
long ts = System.currentTimeMillis();
a.init(options);
a.overrideCurrentTime(ts);
f.add(a);
for (long i = 0; i < 1000; i++) {
Key k = new Key(new Text(String.format("%03d", i)), colf, colq, ts - i);
tm.put(k, dv);