Tag
alerting-rules
- Dec 30, 2025 Fleet-Wide Alerting and the Per-Instance Rule Why the aggregation level of an alerting rule decides both what it can detect and how many notifications it produces, and how to choose between per-instance, per-shard, and fleet-wide evaluation. observability
- Jan 1, 2025 Symptom-Based Alerting and the Cause Signals It Replaces Why paging on the metric that explains a failure produces more pages than paging on the failure itself, and how to tell a symptom from a cause when writing a rule. observability
- Dec 16, 2024 Alerting on Absent and Stale Data Why a missing series makes an alert rule evaluate to nothing rather than to health, how staleness markers and absence functions expose the difference, and why a firing alert can silently turn into a false resolution. observability
- Jun 11, 2024 Alert State, Hysteresis, and the Cost of Flapping How an alert moves between inactive, pending, firing, and resolved, why a condition that crosses its threshold repeatedly produces a notification storm, and what a hold duration or a second threshold does about it. observability
- Mar 1, 2023 Multiwindow Burn-Rate Alerts and the Short Window as a Reset Why one burn-rate rule cannot be both fast and quiet, how pairing a long window with a short one separates depth from duration, and what the AND condition changes about resolution. observability