Aliaksandr Valialkin
97b41e727c
lib/promscrape: implement target-level and metric-level relabel debugging
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Target-level debugging is performed by clicking the 'debug' link at the corresponding target
on either http://vmagent:8429/targets page or on http://vmagent:8428/service-discovery page.
Metric-level debugging is perfromed at http://vmagent:8429/metric-relabel-debug page.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3407
See https://docs.victoriametrics.com/vmagent.html#relabel-debug
2022-12-10 02:25:56 -08:00
Aliaksandr Valialkin
be6da5053f
lib/promscrape: optimize service discovery speed
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- Return meta-labels for the discovered targets via promutils.Labels
instead of map[string]string. This improves the speed of generating
meta-labels for discovered targets by up to 5x.
- Remove memory allocations in hot paths during ScrapeWork generation.
The ScrapeWork contains scrape settings for a single discovered target.
This improves the service discovery speed by up to 2x.
2022-11-29 21:26:23 -08:00
Aliaksandr Valialkin
4a6d5ab1b1
lib/promrelabel: go fmt after 5cec9706dc
2022-10-29 05:17:49 +03:00
Aliaksandr Valialkin
a72bf87e04
lib/promrelabel: add a test from https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3251
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3251
2022-10-29 04:34:08 +03:00
Aliaksandr Valialkin
c4a3d8b169
lib/promrelabel: add relabeling tests when the source label is missing
2022-10-17 14:48:29 +03:00
Aliaksandr Valialkin
087393bcef
lib/promrelabel: remove unconditional sorting of the labels in ParsedConfigs.Apply(), since the sorting isnt needed in many places
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Sort labels explicitly after calling the ParsedConfigs.Apply() when needed.
This reduces CPU usage when performing metric-level relabeling, where labels' sorting isn't needed.
2022-10-09 14:53:35 +03:00
Aliaksandr Valialkin
e5aa34b2e3
lib/promrelabel: export MustParseMetricWithLabels function, which can be used for simplifying tests
2022-10-01 16:15:00 +03:00
Aliaksandr Valialkin
f1eebc0a99
lib/promrelabel: properly parse regex with escaped $ at the end
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3131
Thanks to @dmitryk-dk for the initial fix at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/3179
2022-09-30 08:20:57 +03:00
Aliaksandr Valialkin
7f0b95b50a
lib/promrelabel: add SanitizeName() function for sanitizing Prometheus metric names and label names
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Optimize this function by using results cache for input strings.
Use this function all over the code.
This is a follow-up for fcffdba9dchttps://github.com/VictoriaMetrics/VictoriaMetrics/issues/3113
2022-09-28 10:02:11 +03:00
Aliaksandr Valialkin
da7697fda4
lib/promrelabel: use regexutil.PromRegex for regex matching in actions labeldrop,labelkeep,drop and keep
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This makes possible optimizing additional cases inside regexutil.PromRegex
2022-08-26 15:48:11 +03:00
Aliaksandr Valialkin
909e681024
lib/promrelabel: optimize action: {drop,keep,labeldrop,labelkeep} with anchored regex prefix
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The following commonly used relabeling rules must work faster now:
- action: labeldrop
regex: "^foo.+$"
- action: labeldrop
regex: "^bar.*"
2022-08-25 23:24:38 +03:00
Aliaksandr Valialkin
d60654eb0a
lib/promrelabel: optimize action: {labeldrop,labelkeep,keep,drop} with regex containing alternate values
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For example, the following relabeling rule must work much faster now:
- action: labeldrop
regex: "foo|bar|baz"
2022-08-24 17:55:54 +03:00
Aliaksandr Valialkin
1c7f402598
app/vmagent: add ability to construct a label from multiple existing labels by referring them in the replacement field during relabeling
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For example:
- target_label: composite-label
replacement: {{source_label1}}-{{source_label2}}
2022-08-21 22:49:24 +03:00
Aliaksandr Valialkin
450aa0ae5a
lib/promrelabel: support action: graphite relabeling
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2737
2022-06-16 20:25:49 +03:00
Roman Khavronenko
bca90d7148
promrelabel: add support of lowercase and uppercase relabeling actions ( #2665 )
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* promrelabel: add support of `lowercase` and `uppercase` relabeling actions
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2664
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* lib/storage: make golangci-lint happy
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2022-06-01 14:57:39 +03:00
Aliaksandr Valialkin
2431c9cf81
lib/promrelabel: add support for conditional relabeling via if filter
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1998
2022-02-24 02:35:13 +02:00
Aliaksandr Valialkin
75c3514c5c
lib/promrelabel: add keep_metrics and drop_metrics actions to relabeling rules
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These actions simlify metrics filtering. For example,
- action: keep_metrics
regex: 'foo|bar|baz'
would leave only metrics with `foo`, `bar` and `baz` names, while the rest of metrics will be deleted.
The commit also makes possible to split long regexps into multiple lines. For example, the following config is equivalent to the config above:
- action: keep_metrics
regex:
- foo
- bar
- baz
2021-09-09 16:25:09 +03:00
Aliaksandr Valialkin
92628f9f07
lib/promrelabel: add tests for verifying that regex works as expected in single quotes and double quotes
2021-07-27 10:53:03 +03:00
Aliaksandr Valialkin
e7d353ee6a
lib/promrelabel: add tests for labelsToString() function
2021-06-04 20:42:14 +03:00
Aliaksandr Valialkin
269e35d676
app/{vmagent,vminsert}: follow-up after 2fe045e2a4
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1343
2021-06-04 20:33:22 +03:00
Aliaksandr Valialkin
c4ed50ae54
lib/promrelabel: add tests for conditional removal of label on another label match
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1294
2021-05-18 00:23:23 +03:00
Aliaksandr Valialkin
60ffbcbb99
lib/promrelabel: add tests for removing the specified {label="value"} pair
2021-05-03 11:26:58 +03:00
Aliaksandr Valialkin
f8baf1a76d
lib/promrelabel: optimize labeldrop and labelkeep relabeling for prefix.* and prefix.+ regexps
2021-02-24 17:58:11 +02:00
Aliaksandr Valialkin
197ecca426
lib/promrelabel: add more optimizations for relabeling for common cases
2021-02-22 16:36:54 +02:00
Aliaksandr Valialkin
63c16c3fdf
lib/promrelabel: optimize relabeling performance for common cases
2021-02-22 00:51:07 +02:00
Aliaksandr Valialkin
7505e4f390
lib/promrelabel: make a copy of label with new name for action: labelmap in the same way as Prometheus does
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/812
2020-10-05 16:20:22 +03:00
Aliaksandr Valialkin
3a444bb7bb
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 17:29:19 +03:00
Aliaksandr Valialkin
2e5b6220a4
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 02:20:58 +03:00
Aliaksandr Valialkin
1f0e8fdc0d
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 16:59:29 +03:00
Aliaksandr Valialkin
09f796e2ab
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 12:23:30 +03:00
Aliaksandr Valialkin
7ee7614e90
app/vmagent: initial implementation for vmagent
2020-02-23 17:31:54 +02:00
