Commit graph

111 commits

Author SHA1 Message Date
Aliaksandr Valialkin
50f5eae0e0
lib/promrelabel: remove unconditional sorting of the labels in ParsedConfigs.Apply(), since the sorting isnt needed in many places
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 14:51:16 +03:00
Aliaksandr Valialkin
f9df0cae16
lib/promscrape: allow specifying full target url in __address__ label
Previously the `__address__` label could contain only `host:port` part of the target url,
while the scheme and metrics path were obtained from `__scheme__` and `__metrics_path__`
labels. Now it is possible to set the full url in `__address__` label.

This makes valid the following scrape config, which is frequently used by novice users:

scrape_configs:
- job_name: foo
  static_configs:
  - targets:
    - http://host1/metrics1
    - https://host2/metrics2
2022-10-07 22:43:04 +03:00
Aliaksandr Valialkin
3a98ef2f5f
lib/promrelabel: export MustParseMetricWithLabels function, which can be used for simplifying tests 2022-10-01 16:05:51 +03:00
Aliaksandr Valialkin
e8a64f6e7a
lib/promrelabel: remove redundant memory allocations by using interned strings 2022-10-01 11:50:21 +03:00
Aliaksandr Valialkin
73dc17ef64
lib/promrelabel: add a benchmark for realistic Kubernetes relabeling
The benchmark name is BenchmarkApplyRelabelConfigs/kubernetes

This benchmark has been copied from d521933053/model/relabel/relabel_test.go (L505)

See also https://github.com/prometheus/prometheus/pull/11147
2022-10-01 10:38:22 +03:00
Aliaksandr Valialkin
171dd14aa3
lib/promrelabel: go fmt 2022-09-30 12:28:55 +03:00
Aliaksandr Valialkin
a18d6d5ccc
lib/promrelabel: optimize action: replace for non-trivial regex values
Cache `action: replace` results for non-trivial regexs and return them next time
instead of performing CPU-intensive regex replacement.

Optimize also `action: labelmap_all` and `action: replace_all` in the same way.
2022-09-30 12:25:05 +03:00
Aliaksandr Valialkin
146021a076
lib/promrelabel: there is no need in calling regex.HasPrefix() after the optimization at 17289ff481 2022-09-30 10:49:18 +03:00
Aliaksandr Valialkin
899d2c40fb
lib/promrelabel: optimize action: labelmap for non-trivial regexs 2022-09-30 10:43:31 +03:00
Aliaksandr Valialkin
fda60b3d4d
lib/promrelabel: properly parse regex with escaped $ at the end
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 08:15:43 +03:00
Aliaksandr Valialkin
6a32a64073
lib/bytesutil: add FastStringTransformer and use it in the rest of the code where needed 2022-09-28 10:41:00 +03:00
Aliaksandr Valialkin
ef435f8cc4
lib/promrelabel: add SanitizeName() function for sanitizing Prometheus metric names and label names
Optimize this function by using results cache for input strings.
Use this function all over the code.

This is a follow-up for fcffdba9dc

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3113
2022-09-28 10:40:59 +03:00
Aliaksandr Valialkin
a2cd79576f
lib/promrelabel: call PromRegex.MatchString() on a slow path only if it contains non-empty literal prefix
This should improve slow path speed for regexps without literal prefixes
2022-08-26 21:48:30 +03:00
Aliaksandr Valialkin
f49c9bb700
lib/promrelabel: optimize common regex mismatch cases for action: replace and action: labelmap 2022-08-26 15:45:31 +03:00
Aliaksandr Valialkin
4c6916f32a
lib/promrelabel: use regexutil.PromRegex for regex matching in actions labeldrop,labelkeep,drop and keep
This makes possible optimizing additional cases inside regexutil.PromRegex
2022-08-26 15:23:45 +03:00
Aliaksandr Valialkin
7afe8450fc
lib/promrelabel: optimize matching for commonly used regex patterns in if option
The following regex patterns are optimized:

- literal string match, e.g. "foo"
- prefix match, e.g. "foo.*" and "foo.+"
- substring match, e.g. ".*foo.*" and ".+foo.+"
- alternate values match, e.g. "foo|bar|baz"
2022-08-26 14:53:06 +03:00
Aliaksandr Valialkin
0ad3bbadd3
lib/regexutil: add Simplify() function for simplifying the regular expression 2022-08-26 11:57:12 +03:00
Aliaksandr Valialkin
b373661988
lib/promrelabel: optimize action: {drop,keep,labeldrop,labelkeep} with anchored regex prefix
The following commonly used relabeling rules must work faster now:

- action: labeldrop
  regex: "^foo.+$"

- action: labeldrop
  regex: "^bar.*"
2022-08-25 23:23:55 +03:00
Aliaksandr Valialkin
0d4ea03a73
lib/promrelabel: optimize action: {labeldrop,labelkeep,keep,drop} with regex containing alternate values
For example, the following relabeling rule must work much faster now:

- action: labeldrop
  regex: "foo|bar|baz"
2022-08-24 17:54:29 +03:00
Aliaksandr Valialkin
8550c44e31
app/vmagent: add ability to construct a label from multiple existing labels by referring them in the replacement field during relabeling
For example:

- target_label: composite-label
  replacement: "{{source_label1}}-{{source_label2}}"
2022-08-21 22:50:01 +03:00
Roman Khavronenko
d3f13ab85b
lib/promrelabel: fix expected test result (#2957)
follow-up after 68c4ec9472

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2022-08-08 13:47:29 +03:00
Aliaksandr Valialkin
68c4ec9472
lib/promrelabel: do not split regex into multiple lines if it contains groups
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2928
2022-08-08 03:15:26 +03:00
Aliaksandr Valialkin
814bb1685f
all: fix other typos in the same way as 6f4d9b2a48 does 2022-07-18 12:08:15 +03:00
Aliaksandr Valialkin
e6ed92529b
all: remove explicit "xxhash" name when importing github.com/cespare/xxhash/v2 package
This package already has the same name, so there is no need in explicit name
2022-06-21 20:23:32 +03:00
Aliaksandr Valialkin
c18f8cccfa
lib/promrelabel: support action: graphite relabeling
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2737
2022-06-16 20:24:22 +03:00
Aliaksandr Valialkin
ca689fec54
docs/CHANGELOG.md: follow-up after 2177089f94 2022-06-01 14:51:26 +03:00
Roman Khavronenko
2177089f94
promrelabel: add support of lowercase and uppercase relabeling actions (#2665)
* 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 10:02:37 +02:00
Aliaksandr Valialkin
123aa4c79e
lib/promscrape: properly implement ScrapeConfig.clone()
Previously ScrapeConfig.clone() was improperly copying promauth.Secret fields -
their contents was replaced with `<secret>` value.

This led to inability to use passwords and secrets in `-promscrape.config` file.
The bug has been introduced in v1.77.0 in the commit 67b10896d2

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2551
2022-05-07 00:05:40 +03:00
Aliaksandr Valialkin
3d0549c982
lib/promscrape: optimize getScrapeWork() function
Reduce the number of memory allocations in this function. This improves its performance by up to 50%.
This should improve service discovery speed when big number of potential targets with big number of meta-labels
are generated by service discovery.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2270
2022-04-20 15:37:00 +03:00
Dmytro Kozlov
a3ee275149
lib/promscrape: Enable filters for endpoint and labels (#2466)
* lib/promscrape: Enable filters for endpoint and labels

* lib/promscrape: cleanup

* lib/promscrape: update template

* lib/promscrape: move logic filter logic to backend

* lib/promscrape: updated placeholder

* lib/promscrape: updated placeholder

* lib/promscrape: use two different fields for filters, updated form, added error on parsing queries

* lib/promscrape: rename functions

* lib/promscrape: removed unused values

* wip

* wip

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2022-04-19 18:26:21 +03:00
Aliaksandr Valialkin
3f49bdaeff
lib/promrelabel: add support for conditional relabeling via if filter
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1998
2022-02-24 02:27:26 +02:00
Aliaksandr Valialkin
afafeb379a
all: typo fix: unexected -> unexpected 2021-12-20 17:39:52 +02:00
Aliaksandr Valialkin
06642d97f5
app: allow specifying http and https urls in the following command-line flags
* -promscrape.config
* -relabelConfig
* -remoteWrite.relabelConfig
* -remoteWrite.urlRelabelConfig
2021-12-03 00:10:02 +02:00
Aliaksandr Valialkin
207c5760ce
lib/promrelabel: fix parsing regex: true in relabeling rules 2021-09-21 23:00:53 +03:00
Aliaksandr Valialkin
d6bd956930 lib/promrelabel: add keep_metrics and drop_metrics actions to relabeling rules
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 16:18:21 +03:00
Aliaksandr Valialkin
bb31117555 lib/promrelabel: add tests for verifying that regex works as expected in single quotes and double quotes 2021-07-27 10:50:55 +03:00
Aliaksandr Valialkin
661d2668f8 lib/promrelabel: add tests for labelsToString() function 2021-06-04 20:42:46 +03:00
Aliaksandr Valialkin
78f83dc5ad app/{vmagent,vminsert}: follow-up after 2fe045e2a4
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1343
2021-06-04 20:27:58 +03:00
jelmd
2fe045e2a4
new feature: debug relabeling (#1344)
* new feature: relabel logging

Use scrape_configs[x].relabel_debug = true to log metric names inkl.
labels before and after relabeling. After relabeling related metrics
get dropped, i.e. not submitted to servers.

* vminsert wants relabel logging, too.
2021-06-04 17:50:23 +03:00
Aliaksandr Valialkin
ec6a284978 lib/promrelabel: add tests for conditional removal of label on another label match
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1294
2021-05-18 00:23:03 +03:00
Aliaksandr Valialkin
9a930720b3 lib/promrelabel: add tests for removing the specified {label="value"} pair 2021-05-03 11:26:53 +03:00
Aliaksandr Valialkin
a939667ce0 lib/promrelabel: remove unneded optimizations for labeldrop and labelkeep actions
These optimizations may slow down code execution by matching the same label against regexp two times instead of a single time
2021-03-02 17:55:43 +02:00
Aliaksandr Valialkin
f7049e2af7 lib/promrelabel: optimize labeldrop and labelkeep relabeling for prefix.* and prefix.+ regexps 2021-02-24 17:58:28 +02:00
Aliaksandr Valialkin
d136081040 lib/promrelabel: add more optimizations for relabeling for common cases 2021-02-22 16:33:55 +02:00
Aliaksandr Valialkin
dd1e53b119 lib/promrelabel: optimize relabeling performance for common cases 2021-02-22 00:51:13 +02:00
Vasily
6fcbd17bdd Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig (#796)
* Add omitempty for DisableCompression and DisableKeepAlive fields in ScrapeConfig

* Add omitempty annotation to all the default/optional values

* Fix annotations after review
2020-11-13 16:19:05 +02:00
Aliaksandr Valialkin
83df20b5b5 lib/promscrape: clean references to label name and label value strings after applying per-target relabeling
This should reduce memory usage when per-target relabeling creates big number of temporary labels
with long names and/or values.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
2020-11-07 16:19:59 +02:00
Aliaksandr Valialkin
f42194d817 lib/promrelabel: make a copy of label with new name for action: labelmap in the same way as Prometheus does
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/812
2020-10-05 16:19:19 +03:00
Aliaksandr Valialkin
c402265e88 all: support %{ENV_VAR} placeholders in yaml configs in all the vm* components
Such placeholders are substituted by the corresponding environment variable values.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/583
2020-08-13 17:15:25 +03:00
Aliaksandr Valialkin
91b3482894 app/vminsert: add ability to apply relabeling to all the incoming metrics if -relabelConfig command-line arg points to a file with a list of relabel_config entries
See https://victoriametrics.github.io/#relabeling
2020-07-02 20:39:28 +03:00
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
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
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
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
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
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
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