@Override
  public void onBlobReplicated(String blobId, String serviceId, Account account, Container container,
      DataNodeId sourceHost) {
    logger.debug(
        "onBlobReplicated {}, serviceId {}, accountName {}, accountId {}, containerName {}, containerId {}, host {} {}",
        blobId, serviceId, account == null ? null : account.getName(), account == null ? null : account.getId(),
        container == null ? null : container.getName(), container == null ? null : container.getId(),
        sourceHost.getHostname(), sourceHost.getPort());
  }
Logs all events at DEBUG level.
ambry-commons/src/main/java/com/github/ambry/commons/LoggingNotificationSystem.java