@Override
    public void run() {
      for (long key : data.keys) {
        trt.includeTimestamp(key);
      }
    }
Run a bunch of threads against a single TimeRangeTracker and ensure we arrive at right range.
Here we do ten threads each incrementing over 100k at an offset of the thread index; max is 10
* 10k and min is 0.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestSyncTimeRangeTracker.java