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docs/Single-server-VictoriaMetrics.md: add a link to exlanation on how downsampling works

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Aliaksandr Valialkin 2022-02-08 15:10:41 +02:00
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@ -1129,9 +1129,9 @@ with the enabled de-duplication. See [this section](#deduplication) for details.
## Deduplication ## Deduplication
VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag 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.
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. The `-dedup.minScrapeInterval=D` is equivalent to `-downsampling.period=0s:D` if [downsampling](#downsampling) is enabled. 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.
The recommended value for `-dedup.minScrapeInterval` must equal to `scrape_interval` config from Prometheus configs. It is recommended to have a single `scrape_interval` across all the scrape targets. See [this article](https://www.robustperception.io/keep-it-simple-scrape_interval-id) for details. The recommended value for `-dedup.minScrapeInterval` must equal to `scrape_interval` config from Prometheus configs. It is recommended to have a single `scrape_interval` across all the scrape targets. See [this article](https://www.robustperception.io/keep-it-simple-scrape_interval-id) for details.

6
docs/Single-server-VictoriaMetrics.md
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@ -1133,9 +1133,9 @@ with the enabled de-duplication. See [this section](#deduplication) for details.
## Deduplication ## Deduplication
VictoriaMetrics de-duplicates data points if `-dedup.minScrapeInterval` command-line flag 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.
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. The `-dedup.minScrapeInterval=D` is equivalent to `-downsampling.period=0s:D` if [downsampling](#downsampling) is enabled. 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.
The recommended value for `-dedup.minScrapeInterval` must equal to `scrape_interval` config from Prometheus configs. It is recommended to have a single `scrape_interval` across all the scrape targets. See [this article](https://www.robustperception.io/keep-it-simple-scrape_interval-id) for details. The recommended value for `-dedup.minScrapeInterval` must equal to `scrape_interval` config from Prometheus configs. It is recommended to have a single `scrape_interval` across all the scrape targets. See [this article](https://www.robustperception.io/keep-it-simple-scrape_interval-id) for details.