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21 commits

Author SHA1 Message Date
Aliaksandr Valialkin
728c4c3841 lib/promscrape: generate scrape_timeout_seconds metric per each scrape target in the same way as Prometheus 2.30 does 
See https://github.com/prometheus/prometheus/pull/9247
 2021-09-12 15:20:44 +03:00
Aliaksandr Valialkin
f3e89754a9 lib/promscrape: reduce CPU usage for common case when calculating scrape_series_added metric 
Also reduce CPU usage when applying `series_limit` to scrape targets with constant set of metrics.

The main idea is to perform the calculations on scrape_series_added and series_limit
only if the set of metrics exposed by the target has been changed.
Scrape targets rarely change the set of exposed metrics,
so this optimization should reduce CPU usage in general case.
 2021-09-12 12:53:14 +03:00
Aliaksandr Valialkin
f77dde837a lib/promscrape: add the ability to limit the number of unique series per each scrape target 
The number of series per target can be limited with the following options:

* Global limit with `-promscrape.maxSeriesPerTarget` command-line option.
* Per-target limit with `max_series: N` option in `scrape_config` section.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1561
 2021-09-01 16:03:59 +03:00
Aliaksandr Valialkin
c09446a9aa lib/promscrape: send stale markers for the previously scraped metrics on failed scrapes like Prometheus does 2021-08-18 21:59:03 +03:00
Aliaksandr Valialkin
d826352688 app/vmagent: follow-up after fe445f753b 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1491
 2021-08-05 09:52:32 +03:00
Omar Ghader
46e27d60a6 feature: Add multitenant for vmagent (#1505) 
* feature: Add multitenant for vmagent

* Minor fix

* Fix rcs index out of range

* Minor fix

* Fix multi Init

* Fix multi Init

* Fix multi Init

* Add default multi

* Adjust naming

* Add TenantInserted metrics

* Add TenantInserted metrics

* fix: remove unused metrics for vmagent

* fix: remove unused metrics for vmagent

Co-authored-by: mghader <marc.ghader@ubisoft.com>
Co-authored-by: Sebastian YEPES <syepes@gmail.com>
 2021-08-05 09:52:31 +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
Aliaksandr Valialkin
a52a20659a lib/promscrape: fix tests after f0c21b6300 2021-05-28 01:32:50 +03:00
Aliaksandr Valialkin
3fd8653b40 lib/promscrape: apply sample_limit after metric relabeling is applied as Prometheus does 
See the description for `sample_limit` option from Prometheus docs:

Per-scrape limit on number of scraped samples that will be accepted.
If more than this number of samples are present after metric relabeling
the entire scrape will be treated as failed. 0 means no limit.

https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config
 2021-03-09 15:47:18 +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
2dfa746c91 lib/promscrape: remove ID field from ScrapeWork struct. Use a pointer to ScrapeWork as a key in targetStatusMap 
This simplifies the code a bit.
 2020-12-17 14:32:56 +02:00
Aliaksandr Valialkin
32869e4c0f lib/promscrape: fix failing tests after a906b3862f 2020-11-29 01:26:03 +02:00
Aliaksandr Valialkin
ca8b5745b5 lib/promscrape: reduce memory allocations in promLabelsString() function 
This should help with reducing memory usage in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
 2020-11-04 10:38:44 +02:00
Aliaksandr Valialkin
7d893a234c lib/promscrape: do not reset the remaining rows when pushing a part of data to remote storage during big scrapes 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/753

Thanks to @PerGon and @clmssz for help with debugging.
 2020-09-11 23:39:13 +03:00
Aliaksandr Valialkin
455bf50a91 lib/promscrape: show real timestamp and real duration for the scape on /targets page 
Previously the scrape duration may be negative when calculated scrape timestamp drifts away from the real scrape timestamp
 2020-08-10 12:40:25 +03:00
Aliaksandr Valialkin
23c9e6b727 lib/promscrape: export scrape_samples_added per-target metric like Prometheus does 
This metric may be useful for detecting targets with high churn rate for the exported metrics.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/683
 2020-08-09 12:45:39 +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
Ween
1cd01b5359
Fix Auto metrics relabeled errors (#593) 
* Fix Auto metrics relabeled errors

* Finalize auto-genenated  Labels

* Fix Test Errors

Co-authored-by: xinyulong <xinyulong@kuaishou.com>
 2020-06-29 22:29:29 +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
Aliaksandr Valialkin
01d7d799dc lib/promscrape: rename 'scrape_config->scrape_limit' to 'scrape_config->sample_limit' 
`scrape_config` block from Prometheus config contains `sample_limit` field,
while in `vmagent` this field was mistakenly named as `scrape_limit`.
 2020-04-14 11:59:57 +03:00
Aliaksandr Valialkin
04762344c6 app/vmagent: initial implementation for vmagent 2020-02-23 13:36:03 +02:00