On-call gets paged for every threshold breach, most of which are noise, and the real signal gets lost in the flood.
Static thresholds at scale produce thousands of alerts per day, and 95% of them are noise. The team mutes channels, raises thresholds, and sets stricter notification rules, until the next real Sev-1 lands in a dead zone. Alert fatigue is the leading cause of senior SRE attrition; replacing one senior engineer costs $300K-$600K. The math justifies investing in noise reduction even before counting missed-incident risk.
Nova compresses raw events into actionable incidents through deduplication, correlation, inhibition, and severity tiering, before anything reaches the on-call.
Nova's predictive engine learns each service's baseline and fires on deviations from pattern, not absolute values. A 5x spike during a deploy is not the same as a 5x spike at 3am.
When 47 alerts fire because one upstream is degraded, Nova groups them into one incident with the upstream as the suspected root cause, ranked with provenance.
Deploys, maintenance windows, and known traffic peaks suppress related alerts automatically, so the team isn't paged for expected behavior.
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