@TransactionAttribute(TransactionAttributeType.NEVER)
public void calculateAutoBaselines() {
Properties conf = systemManager.getSystemConfiguration(subjectManager.getOverlord());
// frequency is how often the baselines are recalculated
// data set is how far back for a particular scheduled measurement is included in the baseline
// calcs
// frequency of 3 days and data set of 10 days means "every 3 days, recalculate baselines
// automatically.
// For each scheduled measurement, take their last 10 days worth of data and use that data set
// as the portion that will be used to get the min/max/average".
String baselineFrequencyString = conf.getProperty(RHQConstants.BaselineFrequency);
String baselineDataSetString = conf.getProperty(RHQConstants.BaselineDataSet);
log.debug(
"Found baseline defaults: "
+ "frequency="
+ baselineFrequencyString
+ " dataset="
+ baselineDataSetString);
// Its time to auto-calculate the baselines again.
// Determine how much data we need to calculate baselines for by determining the oldest and
// youngest
// measurement data to include in the calculations.
long amountOfData = Long.parseLong(baselineDataSetString);
long baselinesOlderThanTime =
System.currentTimeMillis() - Long.parseLong(baselineFrequencyString);
measurementBaselineManager.calculateAutoBaselines(amountOfData, baselinesOlderThanTime);
// everything was calculated successfully, remember this time
conf =
systemManager.getSystemConfiguration(
subjectManager
.getOverlord()); // reload the config in case it was changed since we started
try {
systemManager.setSystemConfiguration(subjectManager.getOverlord(), conf, true);
} catch (Exception e) {
log.error(
"Failed to remember the time when we just calc'ed baselines - it may recalculate again soon.",
e);
}
}
