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31 commits

Author SHA1 Message Date
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