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docs/vmagent.md: fix alerting query when scraped samples are dropped because of exceeded series limit

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This is a follow-up after 7d26414b2e
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Aliaksandr Valialkin 2022-08-24 01:16:26 +03:00
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app/vmagent/README.md
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@ -604,7 +604,7 @@ These metrics are automatically sent to the configured `-remoteWrite.url` alongs
These metrics allow building the following alerting rules:
- `scrape_series_current / scrape_series_limit > 0.9` - alerts when the number of series exposed by the target reaches 90% of the limit.
- `rate(scrape_series_samples_dropped_total) > 0` - alerts when some samples are dropped because the series limit on a particular target is reached.
- `sum_over_time(scrape_series_limit_samples_dropped[1h]) > 0` - alerts when some samples are dropped because the series limit on a particular target is reached.
By default `vmagent` doesn't limit the number of time series written to remote storage systems specified at `-remoteWrite.url`. The limit can be enforced by setting the following command-line flags:

2
docs/vmagent.md
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@ -608,7 +608,7 @@ These metrics are automatically sent to the configured `-remoteWrite.url` alongs
These metrics allow building the following alerting rules:
- `scrape_series_current / scrape_series_limit > 0.9` - alerts when the number of series exposed by the target reaches 90% of the limit.
- `rate(scrape_series_samples_dropped_total) > 0` - alerts when some samples are dropped because the series limit on a particular target is reached.
- `sum_over_time(scrape_series_limit_samples_dropped[1h]) > 0` - alerts when some samples are dropped because the series limit on a particular target is reached.
By default `vmagent` doesn't limit the number of time series written to remote storage systems specified at `-remoteWrite.url`. The limit can be enforced by setting the following command-line flags: