blueflood-http/src/main/java/com/rackspacecloud/blueflood/tracker/Tracker.java
public void trackDelayedMetricsTenant(String tenantid, final List<Metric> delayedMetrics) {
        if (isTrackingDelayedMetrics) {
            String logMessage = String.format("[TRACKER][DELAYED METRIC] Tenant sending delayed metrics %s", tenantid);
            log.info(logMessage);

            // log individual delayed metrics locator and collectionTime
            double delayedMinutes;
            long nowMillis = System.currentTimeMillis();
            for (Metric metric : delayedMetrics) {
                delayedMinutes = (double)(nowMillis - metric.getCollectionTime()) / 1000 / 60;
                logMessage = String.format("[TRACKER][DELAYED METRIC] %s has collectionTime %s which is delayed by %.2f minutes",
                        metric.getLocator().toString(),
                        dateFormatter.format(new Date(metric.getCollectionTime())),
                        delayedMinutes);
                log.info(logMessage);
            }
        }
    }
public void trackDelayedMetricsTenant(String tenantid, final List<Metric> delayedMetrics) {
        if (isTrackingDelayedMetrics) {
            String logMessage = String.format("[TRACKER][DELAYED METRIC] Tenant sending delayed metrics %s", tenantid);
            log.info(logMessage);

            // log individual delayed metrics locator and collectionTime
            double delayedMinutes;
            long nowMillis = System.currentTimeMillis();
            for (Metric metric : delayedMetrics) {
                delayedMinutes = (double)(nowMillis - metric.getCollectionTime()) / 1000 / 60;
                logMessage = String.format("[TRACKER][DELAYED METRIC] %s has collectionTime %s which is delayed by %.2f minutes",
                        metric.getLocator().toString(),
                        dateFormatter.format(new Date(metric.getCollectionTime())),
                        delayedMinutes);
                log.info(logMessage);
            }
        }
    }
This method is used to log delayed metrics, if tracking delayed metrics
is turned on for this Blueflood service.
@param tenantid
@param delayedMetrics