public String getStats() {
    long total = this.totalReplicatedEdits.get();
    return total == 0
      ? ""
      : "Sink: " + "age in ms of last applied edit: " + this.metrics.refreshAgeOfLastAppliedOp()
        + ", total replicated edits: " + total;
  }
Get a string representation of this sink's metrics
@return string with the total replicated edits count and the date of the last edit that was
        applied
hbase-server/src/main/java/org/apache/hadoop/hbase/replication/regionserver/ReplicationSink.java