public void updateExchangeMetadataTime(long exchangeMetadataTime, boolean remoteColo, boolean sslEnabled,
      String datacenter) {
    if (remoteColo) {
      interColoMetadataExchangeCount.get(datacenter).inc();
      interColoExchangeMetadataTime.get(datacenter).update(exchangeMetadataTime);
      if (sslEnabled) {
        sslInterColoMetadataExchangeCount.get(datacenter).inc();
        sslInterColoExchangeMetadataTime.get(datacenter).update(exchangeMetadataTime);
      } else {
        plainTextInterColoMetadataExchangeCount.get(datacenter).inc();
        plainTextInterColoExchangeMetadataTime.get(datacenter).update(exchangeMetadataTime);
      }
    } else {
      intraColoMetadataExchangeCount.inc();
      intraColoExchangeMetadataTime.update(exchangeMetadataTime);
      if (sslEnabled) {
        sslIntraColoMetadataExchangeCount.inc();
        sslIntraColoExchangeMetadataTime.update(exchangeMetadataTime);
      } else {
        plainTextIntraColoMetadataExchangeCount.inc();
        plainTextIntraColoExchangeMetadataTime.update(exchangeMetadataTime);
      }
    }
  }
This is not used anywhere.
@param sslEnabled
ambry-replication/src/main/java/com/github/ambry/replication/ReplicationMetrics.java