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lib/promscrape: correctly register vm_promscrape_config_* metrics (#3876)

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* lib/promscrape: set `vm_promscrape_config_last_reload_successful` to 1 if there was no promscrape config provided

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promscrape: register `vm_promscrape_config_*` metrics only in case promscrape config is used

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
This commit is contained in:
Zakhar Bessarab 2023-02-27 23:53:53 +04:00 committed by Aliaksandr Valialkin
parent d161873857
commit 3f57d4d489
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2 changed files with 8 additions and 4 deletions
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1
docs/CHANGELOG.md
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@ -15,6 +15,7 @@ The following tip changes can be tested by building VictoriaMetrics components f
## v1.87.x long-time support release (LTS)
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): do not register `vm_promscrape_config_*` metrics if `-promscrape.config` flag is not used. Previously those metrics were registered and never updated, which was confusing and could trigger false-positive alerts.
* BUGFIX: [vmctl](https://docs.victoriametrics.com/vmctl.html): skip measurements with no fields when migrating data from influxdb. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3837).
## [v1.87.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.87.2)

11
lib/promscrape/scraper.go
View file

@ -102,6 +102,8 @@ func runScraper(configFile string, pushData func(at *auth.Token, wr *prompbmarsh
return
}
metrics.RegisterSet(configMetricsSet)
// Register SIGHUP handler for config reload before loadConfig.
// This guarantees that the config will be re-read if the signal arrives just after loadConfig.
// See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1240
@ -198,10 +200,11 @@ func runScraper(configFile string, pushData func(at *auth.Token, wr *prompbmarsh
}
var (
configReloads = metrics.NewCounter(`vm_promscrape_config_reloads_total`)
configReloadErrors = metrics.NewCounter(`vm_promscrape_config_reloads_errors_total`)
configSuccess = metrics.NewCounter(`vm_promscrape_config_last_reload_successful`)
configTimestamp = metrics.NewCounter(`vm_promscrape_config_last_reload_success_timestamp_seconds`)
configMetricsSet = metrics.NewSet()
configReloads = configMetricsSet.NewCounter(`vm_promscrape_config_reloads_total`)
configReloadErrors = configMetricsSet.NewCounter(`vm_promscrape_config_reloads_errors_total`)
configSuccess = configMetricsSet.NewCounter(`vm_promscrape_config_last_reload_successful`)
configTimestamp = configMetricsSet.NewCounter(`vm_promscrape_config_last_reload_success_timestamp_seconds`)
)
type scrapeConfigs struct {