@Override
    protected boolean doAction() throws Exception {
      Put p = new Put(Bytes.toBytes(RandomStringUtils.randomAlphanumeric(5)));
      p.addColumn(FAMILY, Bytes.toBytes("\0"), Bytes.toBytes(RandomStringUtils.randomAscii(5)));
      table.put(p);
      return true;
    }
Callable that will keep putting small amounts of data into a table until the future supplied
returns. It keeps track of the max time.
hbase-it/src/test/java/org/apache/hadoop/hbase/mttr/IntegrationTestMTTR.java