Aliaksandr Valialkin
d5dddb0953
all: use %w instead of %s for wrapping errors in fmt.Errorf
...
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
7eb171182b
lib/promrelabel: properly apply ^ and $ anchors to regex value in Prometheus relabeling rules
2020-06-25 17:19:19 +03:00
Aliaksandr Valialkin
2a39ba639d
lib/promrelabel: add support for keep_if_equal and drop_if_equal actions to relabel configs
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These actions may be useful for filtering out unneeded targets and/or metrics if they contain equal label values.
For example, the following rule would leave the target only if __meta_kubernetes_annotation_prometheus_io_port
equals __meta_kubernetes_pod_container_port_number:
- action: keep_if_equal
source_labels: [__meta_kubernetes_annotation_prometheus_io_port, __meta_kubernetes_pod_container_port_number]
2020-06-23 17:29:03 +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
DexterZhang
658a8742ac
fix(vmagent): different behavior as how prometheus deal with labels. [Issue#453] ( #454 )
2020-05-03 16:51:03 +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
78863d7066
lib/promscrape: add promrelabel.GetLabelValueByName helper function
2020-04-14 14:12:01 +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
986dba5ab3
app/vmagent: do not allow non-supported fields in -remoteWrite.relabelConfig and file_sd_configs
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This should reduce possible confusion like in the https://github.com/VictoriaMetrics/VictoriaMetrics/issues/363
2020-03-06 20:19:13 +02:00
Aliaksandr Valialkin
04762344c6
app/vmagent: initial implementation for vmagent
2020-02-23 13:36:03 +02:00
