Aliaksandr Valialkin
f09b46b2b1
lib/promscrape: typo fix after the commit f26162ec99
2021-02-19 00:34:18 +02:00
Aliaksandr Valialkin
502d0e2524
lib/promscrape: add scrape_align_interval config option into scrape config
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This option allows aligning scrapes to a particular intervals.
2021-02-18 23:53:04 +02:00
Aliaksandr Valialkin
18c2075159
lib/promscrape: remove vm_promscrape_scrapes_failed_per_url_total and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total metrics
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These metrics may result in big number of time series when vmagent scrapes thousands of targets and these targets constantly changes.
* It is better using `up == 0` query for determining failing targets.
* It is better using the following query for determining targets with exceeded limit on the number of metrics:
scrape_samples_scraped > 0 if up == 0
2021-02-12 05:23:27 +02:00
Aliaksandr Valialkin
ffec5131ae
lib/promscrape: export vm_promscrape_scrapes_failed_per_url_total
and vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total
metrics
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These metrics could be useful for determining imporperly working scrape targets.
Note that these metrics are exported only for failing scrape targets. They aren't exposed for normally working targets.
2021-01-27 00:40:39 +02:00
Aliaksandr Valialkin
4b324da947
all: consistently use timers from timerpool
2021-01-27 00:40:39 +02:00
Nikolay
9f0a4fd00e
Fixes error handling for promscrape.streamParse ( #1009 )
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properly return error if client cannot read data,
properly suppress scraper errors
2021-01-12 13:35:09 +02:00
Aliaksandr Valialkin
367fc17933
lib/promscrape: code prettifying for 8dd03ecf19
2020-12-24 10:57:20 +02:00
Nikolay
b00f7816e2
adds proxy_url support, ( #980 )
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* adds proxy_url support,
adds proxy_url to the dockerswarm, eureka, kubernetes and consul service discovery,
adds proxy_url to the scrape_config for targets scrapping,
http based proxy is supported atm,
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/503
* fixes imports
2020-12-24 10:57:19 +02:00
Aliaksandr Valialkin
1ee5a234dc
lib/promscrape: remove ID
field from ScrapeWork
struct. Use a pointer to ScrapeWork as a key in targetStatusMap
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This simplifies the code a bit.
2020-12-17 14:31:55 +02:00
Aliaksandr Valialkin
eddc2bd017
lib/promscrape: properly handle scrape errors when stream parsing is enabled
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See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/967
2020-12-15 14:10:52 +02:00
Aliaksandr Valialkin
9d79d11a6c
lib/promscrape: mention in scrape error message that scrape errors can be disabled by -promscrape.suppressScrapeErrors
command-line flag
2020-12-06 23:27:07 +02:00
Aliaksandr Valialkin
af667c59c1
all: typo fix: thouthand->thousand
2020-11-26 13:34:05 +02:00
Aliaksandr Valialkin
535fea3d11
lib/promscrape: eliminate data race in stream parse
mode
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Previously `-promscrape.streamParse` mode could result in garbage labels for the scraped metrics because of data race.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825#issuecomment-723198247
2020-11-07 12:45:52 +02:00
Aliaksandr Valialkin
c046735571
lib/promscrape: reduce memory allocations in promLabelsString() function
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This should help with reducing memory usage in https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878
2020-11-04 10:38:59 +02:00
Aliaksandr Valialkin
ed724d25ba
lib/promscrape: add stream parse
mode for efficient scraping of targets that expose millions of metrics
2020-11-01 23:12:26 +02:00
Aliaksandr Valialkin
0d44e371f3
lib/promscrape: add -promscrape.suppressDuplicateScrapeTargetErrors
command-line flag in order to suppress duplicate scrape target
errors
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Show also original labels for duplicate targets in error message in order to simplify debugging the issue.
Now `/targets` endpoint accepts optional `show_original_labels=1` query arg, which shows original labels for each target.
This may simplify debugging for target relabeling.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/651
2020-10-08 18:59:25 +03:00
Aliaksandr Valialkin
ca08161b54
lib/promscrape: typo fix
2020-09-12 00:14:15 +03:00
Aliaksandr Valialkin
e53235ac5c
lib/promscrape: do not reset the remaining rows when pushing a part of data to remote storage during big scrapes
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/753
Thanks to @PerGon and @clmssz for help with debugging.
2020-09-11 23:38:17 +03:00
Aliaksandr Valialkin
95ce89e7d7
lib/promscrape: use the number of parsed rows as a basis for writeRequestCtxPool leveling
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The previous basis on `cap(sw.labels)` doesn't work anymore after 7785869ccc
,
because `sw.labels` may be reset multiple times when processing big number of rows.
2020-09-02 18:46:55 +03:00
Aliaksandr Valialkin
a01c56104a
lib/promscrape: fix applying sample_limit when scraping targets with big number of metrics
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This has been broken at 7785869ccc
2020-09-01 11:09:25 +03:00
Aliaksandr Valialkin
deff8d419a
lib/promscrape: reduce memory usage when scraping targets with millions of metrics
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This should help when scraping /federate endpoints from Prometheus instances,
which scrape millions of metrics. See https://prometheus.io/docs/prometheus/latest/federation/
2020-09-01 10:55:24 +03:00
Aliaksandr Valialkin
5f2277624a
lib/{promscrape,leveledbytebufferpool}: rename getPoolIdAndCapacity to getPoolIDAndCapacity in order to make golint happy
2020-08-28 09:49:22 +03:00
Aliaksandr Valialkin
9a77ae9d1c
lib/promscrape: reduce memory usage when scraping targets with big number of metrics alongside targets with small number of labels
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Previously targets with big number of metrics and/or labels could generated too big buffers,
which then could be re-used when scraping targets with small number of metrics.
This resulted in memory waste.
Now big buffers are used only for targets with big number of metrics / labels,
while small buffers are used for targets with small number of metrics / labels.
2020-08-16 22:30:34 +03:00
Aliaksandr Valialkin
9e67343756
lib/promscrape: use a hint on body length instead of body capacity
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This should reduce memory usage for https://github.com/VictoriaMetrics/VictoriaMetrics/issues/689
2020-08-14 01:17:46 +03:00
Aliaksandr Valialkin
b4119bb51e
lib/promscrape: reduce memory usage when scraping big number of targets
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Thanks to @dxtrzhang for the original idea at https://github.com/VictoriaMetrics/VictoriaMetrics/pull/688
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/689
2020-08-14 01:05:04 +03:00
Aliaksandr Valialkin
e3439a6cd0
lib/promscrape: optimize per-metric hash calculations
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This increases vmagent performance by up to 10% when scraping big number of metrics
2020-08-10 19:47:50 +03:00
Aliaksandr Valialkin
e3999ac010
lib/promscrape: show real timestamp and real duration for the scape on /targets
page
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Previously the scrape duration may be negative when calculated scrape timestamp drifts away from the real scrape timestamp
2020-08-10 12:40:49 +03:00
Aliaksandr Valialkin
c09c881264
lib/promscrape: make errcheck happy
2020-08-09 13:17:30 +03:00
Aliaksandr Valialkin
2dfb42a8b4
lib/promscrape: export scrape_samples_added
per-target metric like Prometheus does
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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 12:45:30 +03:00
Roman Khavronenko
a02097e657
Extend metric vm_promscrape_targets
with status
label ( #615 )
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The change to `vm_promscrape_targets` metric suppose to improve observability
for `vmagent` so it will be possible to track how many targets are up or down
for every specific scrape group:
```
vm_promscrape_targets{type="static_configs", status="down"} 1
vm_promscrape_targets{type="static_configs", status="up"} 2
```
2020-07-13 21:54:53 +03:00
Aliaksandr Valialkin
2361ad8ab4
lib/promscrape: add ability to set disable_compression
and disable_keepalive
options in scrape_config
section of the config passed to -promscrape.config
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/580
2020-07-02 14:19:34 +03:00
Aliaksandr Valialkin
5a43842bd3
lib/promscrape: add missing label sorting for autogenerated metrics
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/592
2020-06-29 22:39:40 +03:00
Ween
b42cf33c4d
Fix Auto metrics relabeled errors ( #593 )
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* Fix Auto metrics relabeled errors
* Finalize auto-genenated Labels
* Fix Test Errors
Co-authored-by: xinyulong <xinyulong@kuaishou.com>
2020-06-29 22:39:39 +03:00
Aliaksandr Valialkin
de7e585ac8
lib/promscrape: preserve the previously discovered targets on discovery errors per each job_name
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Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/582
2020-06-23 15:42:46 +03:00
Aliaksandr Valialkin
a5880f17af
lib/promscrape: remove debug line left after the commit e4aac6ea40
2020-05-03 17:16:19 +03:00
Aliaksandr Valialkin
ab1e6a76bb
lib/promscrape: make consistent scrape time offsets across reloads for the same ScrapeURL and Labels
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This should make consistent intervals between data points for scrape targets across reloads.
Previously these intervals were random.
2020-05-03 14:31:22 +03:00
Aliaksandr Valialkin
f422203e10
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 12:47:16 +03:00
Aliaksandr Valialkin
d86640d609
lib/promscrape: suppress scrape errors if -promscrape.suppressScrapeErrors
flag is set
2020-04-16 23:41:52 +03:00
Aliaksandr Valialkin
70104f3fb1
lib/promscrape: print all the labels for the target on error message for failed scrape
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This should improve debuggability.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/420
2020-04-16 23:35:10 +03:00
Aliaksandr Valialkin
636e1578de
lib/promscrape: add promrelabel.GetLabelValueByName helper function
2020-04-14 14:12:15 +03:00
Aliaksandr Valialkin
3945bf9dec
lib/promscrape: mention job name in error messages when target cannot be scraped
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This should improve debuggability
2020-04-14 13:33:18 +03:00
Aliaksandr Valialkin
88366cad15
lib/promscrape: properly expose statuses for targets with duplicate scrape urls at /targets
page
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Previously targets with duplicate scrape urls were merged into a single line on the page.
Now each target with duplicate scrape url is displayed on a separate line.
2020-04-14 13:10:06 +03:00
Aliaksandr Valialkin
f58d15f27c
lib/promscrape: rename 'scrape_config->scrape_limit' to 'scrape_config->sample_limit'
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`scrape_config` block from Prometheus config contains `sample_limit` field,
while in `vmagent` this field was mistakenly named as `scrape_limit`.
2020-04-14 12:00:03 +03:00
Aliaksandr Valialkin
7fbfef2aee
lib/promscrape: extract common auth code to lib/promauth
2020-04-13 12:59:22 +03:00
Aliaksandr Valialkin
c189104be7
lib/promscrape: reduce timestamp jitter when scraping targets
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This should improve compression for timestamps
2020-04-01 16:13:01 +03:00
Aliaksandr Valialkin
7ee7614e90
app/vmagent: initial implementation for vmagent
2020-02-23 17:31:54 +02:00