public void updateMetadataRequestTime(long metadataRequestTime, boolean remoteColo, boolean sslEnabled,
      String datacenter) {
    if (remoteColo) {
      interColoReplicationMetadataRequestTime.get(datacenter).update(metadataRequestTime);
      if (sslEnabled) {
        sslInterColoReplicationMetadataRequestTime.get(datacenter).update(metadataRequestTime);
      } else {
        plainTextInterColoReplicationMetadataRequestTime.get(datacenter).update(metadataRequestTime);
      }
    } else {
      intraColoReplicationMetadataRequestTime.update(metadataRequestTime);
      if (sslEnabled) {
        sslIntraColoReplicationMetadataRequestTime.update(metadataRequestTime);
      } else {
        plainTextIntraColoReplicationMetadataRequestTime.update(metadataRequestTime);
      }
    }
  }
This is not used anywhere.
@param sslEnabled
ambry-replication/src/main/java/com/github/ambry/replication/ReplicationMetrics.java