This blip is not on the current edition of the Radar. If it was on one of the last few editions it is likely that it is still relevant. If the blip is older it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the RadarUnderstand more
In monitoring, the common approach is to conceive of erroneous conditions and set alerts when these appear. But it’s often difficult to enumerate the myriad failure modes in a software system. Monitoring of invariants is a complementary approach to setting expected normal ranges, often by examining historical behavior, and alerting whenever a system goes outside those bounds.