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@ -33,6 +33,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
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* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): show data pocessing speed during data migration.
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* FEATURE: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): add `drop_common_labels()` function, which drops common `label="name"` pairs from the passed time series. See [these docs](https://docs.victoriametrics.com/MetricsQL.html#drop_common_labels).
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* FEATURE: [MetricsQL](https://docs.victoriametrics.com/MetricsQL.html): add `tlast_change_over_time(m[d])` function, which returns the timestamp of the last change of `m` on the given lookbehind window `d`. See [these docs](https://docs.victoriametrics.com/MetricsQL.html#tlast_change_over_time).
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* FEATURE: leave the last raw sample per each `-dedup.minScrapeInterval` discrete interval when the [deduplication](https://docs.victoriametrics.com/#deduplication) is enabled. This aligns better with the [staleness rules in Prometheus](https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness) comparing to the previous behaviour when the first sample per each `-dedup.minScrapeInterval` was left.
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* FEATURE: add a handler for `/api/v1/status/buildinfo` endpoint, which is used by Grafana starting from v8.5.0 . See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2515).
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* BUGFIX: export staleness markers as `null` values from [JSON export API](https://docs.victoriametrics.com/#how-to-export-data-in-json-line-format). Previously they were exported as `NaN` values. This could break the exported JSON parsing, since `NaN` values aren't supported by [JSON specification](https://www.json.org/).
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@ -1097,7 +1097,7 @@ with the enabled de-duplication. See [this section](#deduplication) for details.
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## Deduplication
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VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag is set to positive duration. For example, `-dedup.minScrapeInterval=60s` would de-duplicate data points on the same time series if they fall within the same discrete 60s bucket. The earliest data point will be kept. In the case of equal timestamps, an arbitrary data point will be kept. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2112#issuecomment-1032587618) for more details on how downsampling works.
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VictoriaMetrics leaves a single raw sample with the biggest timestamp per each `-dedup.minScrapeInterval` discrete interval if `-dedup.minScrapeInterval` is set to positive duration. For example, `-dedup.minScrapeInterval=60s` would leave a single raw sample with the biggest timestamp per each discrete 60s interval. If multiple raw samples have the same biggest timestamp on the given `-dedup.minScrapeInterval` discrete interval, then an arbitrary sample out of these samples is left. This aligns with the [staleness rules in Prometheus](https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness).
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The `-dedup.minScrapeInterval=D` is equivalent to `-downsampling.period=0s:D` if [downsampling](#downsampling) is enabled. It is safe to use deduplication and downsampling simultaneously.
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@ -1622,7 +1622,7 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
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The maximum size in bytes of a single DataDog POST request to /api/v1/series
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Supports the following optional suffixes for size values: KB, MB, GB, KiB, MiB, GiB (default 67108864)
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-dedup.minScrapeInterval duration
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Leave only the first sample in every time series per each discrete interval equal to -dedup.minScrapeInterval > 0. See https://docs.victoriametrics.com/#deduplication and https://docs.victoriametrics.com/#downsampling
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Leave only the last sample in every time series per each discrete interval equal to -dedup.minScrapeInterval > 0. See https://docs.victoriametrics.com/#deduplication and https://docs.victoriametrics.com/#downsampling
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-deleteAuthKey string
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authKey for metrics' deletion via /api/v1/admin/tsdb/delete_series and /tags/delSeries
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-denyQueriesOutsideRetention
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@ -1101,7 +1101,7 @@ with the enabled de-duplication. See [this section](#deduplication) for details.
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## Deduplication
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VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag is set to positive duration. For example, `-dedup.minScrapeInterval=60s` would de-duplicate data points on the same time series if they fall within the same discrete 60s bucket. The earliest data point will be kept. In the case of equal timestamps, an arbitrary data point will be kept. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2112#issuecomment-1032587618) for more details on how downsampling works.
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VictoriaMetrics leaves a single raw sample with the biggest timestamp per each `-dedup.minScrapeInterval` discrete interval if `-dedup.minScrapeInterval` is set to positive duration. For example, `-dedup.minScrapeInterval=60s` would leave a single raw sample with the biggest timestamp per each discrete 60s interval. If multiple raw samples have the same biggest timestamp on the given `-dedup.minScrapeInterval` discrete interval, then an arbitrary sample out of these samples is left. This aligns with the [staleness rules in Prometheus](https://prometheus.io/docs/prometheus/latest/querying/basics/#staleness).
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The `-dedup.minScrapeInterval=D` is equivalent to `-downsampling.period=0s:D` if [downsampling](#downsampling) is enabled. It is safe to use deduplication and downsampling simultaneously.
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@ -1626,7 +1626,7 @@ Pass `-help` to VictoriaMetrics in order to see the list of supported command-li
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The maximum size in bytes of a single DataDog POST request to /api/v1/series
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Supports the following optional suffixes for size values: KB, MB, GB, KiB, MiB, GiB (default 67108864)
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-dedup.minScrapeInterval duration
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Leave only the first sample in every time series per each discrete interval equal to -dedup.minScrapeInterval > 0. See https://docs.victoriametrics.com/#deduplication and https://docs.victoriametrics.com/#downsampling
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Leave only the last sample in every time series per each discrete interval equal to -dedup.minScrapeInterval > 0. See https://docs.victoriametrics.com/#deduplication and https://docs.victoriametrics.com/#downsampling
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-deleteAuthKey string
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authKey for metrics' deletion via /api/v1/admin/tsdb/delete_series and /tags/delSeries
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-denyQueriesOutsideRetention
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