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lib/promscrape: export vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics

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These metrics could be useful for determining imporperly working scrape targets.
Note that these metrics are exported only for failing scrape targets. They aren't exposed for normally working targets.
This commit is contained in:
Aliaksandr Valialkin 2021-01-27 00:37:09 +02:00
parent 4b324da947
commit ffec5131ae
2 changed files with 3 additions and 0 deletions
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1
docs/CHANGELOG.md
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@ -6,6 +6,7 @@
* FEATURE: added `-search.maxStepForPointsAdjustment` command-line flag, which can be used for disabling adjustment for points returned `/api/v1/query_range` handler if such points have timestamps closer than `-search.latencyOffset` to the current time. Such points may contain incomplete data, so they are substituted by the previous values for `step` query args smaller than one minute by default. * FEATURE: added `-search.maxStepForPointsAdjustment` command-line flag, which can be used for disabling adjustment for points returned `/api/v1/query_range` handler if such points have timestamps closer than `-search.latencyOffset` to the current time. Such points may contain incomplete data, so they are substituted by the previous values for `step` query args smaller than one minute by default.
* FEATURE: vmalert: added `-datasource.queryStep` command-line flag for passing `step` query arg to `/api/v1/query` endpoint. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1025 * FEATURE: vmalert: added `-datasource.queryStep` command-line flag for passing `step` query arg to `/api/v1/query` endpoint. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1025
* FEATURE: vmagent: added `-remoteWrite.rateLimit` command-line flag for limiting data transfer rate to `-remoteWrite.url`. This may be useful when big amounts of buffered data is sent after temporarily unavailability of the remote storage. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1035 * FEATURE: vmagent: added `-remoteWrite.rateLimit` command-line flag for limiting data transfer rate to `-remoteWrite.url`. This may be useful when big amounts of buffered data is sent after temporarily unavailability of the remote storage. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1035
* FEATURE: vmagent: export `vm_promscrape_scrapes_failed_per_url_total` and `vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total` counters, which may help identifying improperly working scrape targets.
* BUGFIX: vmagent: reduce the HTTP reconnection rate to scrape targets. Previously vmagent could errorneusly close HTTP keep-alive connections more often than needed. * BUGFIX: vmagent: reduce the HTTP reconnection rate to scrape targets. Previously vmagent could errorneusly close HTTP keep-alive connections more often than needed.
* BUGFIX: vmagent: retry scrape and service discovery requests when the remote server closes HTTP keep-alive connection. Previously `disable_keepalive: true` option could be used under `scrape_configs` section when working with such servers. * BUGFIX: vmagent: retry scrape and service discovery requests when the remote server closes HTTP keep-alive connection. Previously `disable_keepalive: true` option could be used under `scrape_configs` section when working with such servers.

2
lib/promscrape/scrapework.go
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@ -269,6 +269,7 @@ func (sw *scrapeWork) scrapeInternal(scrapeTimestamp, realTimestamp int64) error
if err != nil { if err != nil {
up = 0 up = 0
scrapesFailed.Inc() scrapesFailed.Inc()
metrics.GetOrCreateCounter(fmt.Sprintf(`vm_promscrape_scrapes_failed_per_url_total{url=%q}`, sw.Config.ScrapeURL)).Inc()
} else { } else {
bodyString := bytesutil.ToUnsafeString(body.B) bodyString := bytesutil.ToUnsafeString(body.B)
wc.rows.UnmarshalWithErrLogger(bodyString, sw.logError) wc.rows.UnmarshalWithErrLogger(bodyString, sw.logError)
@ -280,6 +281,7 @@ func (sw *scrapeWork) scrapeInternal(scrapeTimestamp, realTimestamp int64) error
srcRows = srcRows[:0] srcRows = srcRows[:0]
up = 0 up = 0
scrapesSkippedBySampleLimit.Inc() scrapesSkippedBySampleLimit.Inc()
metrics.GetOrCreateCounter(fmt.Sprintf(`vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total{url=%q}`, sw.Config.ScrapeURL)).Inc()
} }
samplesPostRelabeling := 0 samplesPostRelabeling := 0
for i := range srcRows { for i := range srcRows {