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Posts tagged “prometheus”
Every post filed under “prometheus”, newest first.
3 posts.
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OpsCanopy 9 min read
Why Did Prometheus Drop My Target? Debugging relabel_configs
A target vanished or a label disappeared after relabeling. Debug Prometheus relabel_configs vs metric_relabel_configs, regex anchoring and keep/drop logic.
- prometheus
- observability
- relabeling
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OpsCanopy 10 min read
Prometheus relabel_configs Explained: A Practical Guide
Understand Prometheus relabel_configs end to end — source_labels, regex, replacement and every action (replace, keep, drop, labelmap, hashmod) — with copy-paste recipes.
- prometheus
- observability
- relabeling
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OpsCanopy 5 min read
How to read a PromQL query
A PromQL query is read from the inside out, not left to right. Learn the four layers — selectors, ranges, functions and aggregations — so you can decode any Prometheus expression at a glance.
- promql
- prometheus
- observability