* [ENHANCEMENT] Alerts: remove metrics for removed Alertmanagers
So they don't continue to report stale values.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
The instant vector documentation does not explain which metric samples are selected - in particular, it makes no reference to staleness.
It's confusing when reading the docs to understand how exactly Prometheus selects the metrics to report: the most recent sample older than the search timestamp specified in the API request, so long as that metric is not "stale".
Signed-off-by: Craig Ringer <craig.ringer@enterprisedb.com>
We are still seeing lock contention on MemPostings.mtx, and MemPostings.Delete() is by far the most expensive operation on that mutex.
This adds parallelism to that method, trying to reduce the amount of time we spend with the mutex held.
Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
In detail:
- Clarify that label name and value length limits are in byte,
not in UTF-8 data points.
- More consistent formatting to keep 80 characters line limet.
- Clarify various misleading specifications around "per sample",
"per scrape", "per scrape config", "per job"...
- Fix grammar.
Signed-off-by: beorn7 <beorn@grafana.com>
* PromQL.Engine: Refactor Matrix expansion into a method
Add utility method promql.evaluator.expandSeriesToMatrix, for expanding a slice
of storage.Series into a promql.Matrix.
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
* Rename to generateMatrix
Rename evaluator.expandSeriesToMatrix into generateMatrix, while also dropping
the start, end, interval arguments since they are evaluator fields.
Write more extensive method documentation.
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
* Rename to evalVectorSelector
Rename to evalVectorSelector after discussing with @michahoffmann.
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
---------
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
If the query overlaps the range currently undergoing compaction, we
should only fetch chunks up to that time. Need to store that min time
in `HeadAndOOOIndexReader`.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
If the query overlaps the range currently undergoing compaction, we
should only fetch chunks up to that time. Need to store that min time
in `HeadAndOOOIndexReader`.
Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
When a YAML file is invalid, trigger auto-reload anyway so that user is
aware that the configuration file is incorrect.
Failing to do so does not change the reload status in metrics and api.
Signed-off-by: Julien <roidelapluie@o11y.eu>
Previously, scrapes durations that are very short (e.g., connection refused)
could show as empty (durations under 1 millisecond).
This commit ensures that sub-millisecond durations are correctly
displayed as "0ms" or "1ms" when necessary.
- Adjusted `humanizeDuration` to round sub-millisecond durations to the
nearest millisecond.
- Updated unit tests to verify the correct handling of sub-millisecond
values.
Signed-off-by: Julien <roidelapluie@o11y.eu>
