private boolean isExpiringSoon(MessageInfo messageInfo) {
    return messageInfo.getExpirationTimeInMs() != Utils.Infinite_Time
        && messageInfo.getExpirationTimeInMs() - messageInfo.getOperationTimeMs() < minTtlMillis;
  }
Check if the blob expires within the min ttl threshold config for vcr {@code CloudConfig#vcrMinTtlDays}.
@param messageInfo {@link MessageInfo} to check.
@return true if blob is expiring within threshold, false otherwise.
ambry-cloud/src/main/java/com/github/ambry/cloud/CloudBlobStore.java