How to fill in historical data for new recording rules
summary
A new Prometheus feature now generates historical time series blocks for newly created recording rules using promtool tsdb create-blocks-from-rules, letting operators backfill a specified start/end window. The tool evaluates the recording rule against the API and writes blocks (example: a one‑hour window yields 70 samples at a 60s interval). Blocks must be moved into Prometheus’s data directory so compaction merges them and the recording rule shows past values. Future work adds block validation and automated install.
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chapters (8)
- 0:00Introduction
- 0:30History
- 0:46What are recording rules
- 1:30The problem with recording rules
- 2:43Running the rule
- 3:50Looking in the logs
- 4:05Results
- 4:27Future work
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