Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
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This will simplify examining the returned errors such as httpserver.ErrorWithStatusCode .
See https://blog.golang.org/go1.13-errors for details.
2020-06-30 23:05:11 +03:00
Aliaksandr Valialkin
8f0bcec6cc
lib/promscrape: preserve the previously discovered targets on discovery errors per each job_name
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/582
2020-06-23 15:40:40 +03:00
Aliaksandr Valialkin
5820c0ffb7
lib/promrelabel: allows regex capture groups in target_label like Prometheus does
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/569
2020-06-19 02:21:24 +03:00
Aliaksandr Valialkin
69004a5f67
lib/promscrape: fix tests after the commit 658a8742ac
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The original commit copies `__address__` label to `instance` label when generating per-target labels as Prometheus does.
See https://www.robustperception.io/life-of-a-label for details.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/453
2020-05-03 16:56:15 +03:00
Aliaksandr Valialkin
d9f1b4d6a3
lib/promscrape: fix TestGetFileSDScrapeWorkSuccess after 3b234d82e5
2020-05-03 14:28:31 +03:00
Aliaksandr Valialkin
3b234d82e5
lib/promscrape: reload only modified scrapers on config changes
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This should improve scrape stability when big number of targets are scraped and these targets are frequently changed.
Thanks to @xbsura for the idea and initial implementation attempts at the following pull requests:
- https://github.com/VictoriaMetrics/VictoriaMetrics/pull/449
- https://github.com/VictoriaMetrics/VictoriaMetrics/pull/458
- https://github.com/VictoriaMetrics/VictoriaMetrics/pull/459
- https://github.com/VictoriaMetrics/VictoriaMetrics/pull/460
2020-05-03 12:45:40 +03:00
Aliaksandr Valialkin
00e897119f
lib/promscrape: add -promscrape.configCheckInterval command-line flag for automating config checking
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/431
2020-04-23 23:41:08 +03:00
Aliaksandr Valialkin
4718a5d951
lib/promscrape: reset ScrapeWork.ID in tests
2020-04-14 13:31:31 +03:00
Aliaksandr Valialkin
6a75c95194
lib/promscrape: remove labels starting with __meta_ after applying relabel_configs as Prometheus does
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This should reduce CPU load during scraping when target discovery generates
big number of `__meta_*` labels (for instance, k8s discovery).
See https://www.robustperception.io/life-of-a-label for details.
2020-04-14 12:23:22 +03:00
Aliaksandr Valialkin
90b4a6dd12
lib/promscrape: extract common auth code to lib/promauth
2020-04-13 12:59:10 +03:00
Aliaksandr Valialkin
499594f421
lib/promscrape: allow overriding external_labels as Prometheus does
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Prometheus docs at https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config say:
> In communication with external systems, they are always applied only
> when a time series does not have a given label yet and are ignored otherwise.
Though this may result in consistency chaos when scrape targets override `external_labels`,
let's stick with Prometheus behavior for the sake of backwards compatibility.
There is last resort in vmagent with `-remoteWrite.label`, which consistently
sets the configured labels to all the metrics before sending them to remote storage.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/366
2020-03-12 20:24:42 +02:00
Aliaksandr Valialkin
6739c2749d
lib/promscrape: go fmt
2020-02-25 20:56:44 +02:00
Aliaksandr Valialkin
7a33da8fea
lib/promscrape: do not add missing port to __address__ label in order to be consistent with Prometheus behavior
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/331
2020-02-25 20:49:50 +02:00
Aliaksandr Valialkin
04762344c6
app/vmagent: initial implementation for vmagent
2020-02-23 13:36:03 +02:00
