@Override
    public boolean equals(Object o) {
      if (o instanceof SizeSnapshotWithTimestamp) {
        SizeSnapshotWithTimestamp other = (SizeSnapshotWithTimestamp) o;
        return size == other.size && time == other.time;
      }
      return false;
    }
Holds the size of a region at the given time, millis since the epoch.
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/MasterQuotaManager.java