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73 Commits

Author SHA1 Message Date
Aliaksandr Valialkin
18dd0d1dbf
.golangci.yml: properly enable revive linter and fix all the warnings it detects 2023-02-26 12:19:58 -08:00
Aliaksandr Valialkin
aed2dbe45e
lib/promscrape: follow-up for 43e104a83f 
- Return immediately on context cancel during the backoff sleep.
  This should help with https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3747

- Add a comment describing why the second attempt to obtain the response from remote side
  is perfromed immediately after the first attempt.

- Remove fasthttp dependency from lib/promscrape/discoveryutils

- Set context deadline before calling doRequestWithPossibleRetry().
  This simplifies the doRequestWithPossibleRetry() a bit.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3293
 2023-02-24 12:25:36 -08:00
Zakhar Bessarab
5ea6d71cb3
fix: do not use exponential backoff for first retry of scrape request (#3824) 
* fix: do not use exponential backoff for first retry of scrape request (#3293)

* lib/promscrape: refactor `doRequestWithPossibleRetry` backoff to simplify logic

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* Update lib/promscrape/client.go

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>

* lib/promscrape: refactor `doRequestWithPossibleRetry` to make it more straightforward

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
 2023-02-24 12:25:35 -08:00
Aliaksandr Valialkin
0c60e4a30a
all: consistently use http.Method{Get,Post,Put} across the codebase 
This is a follow-up after 9dec3c8f80
 2023-02-22 19:01:09 -08:00
Zakhar Bessarab
2c05066f19
lib/promscrape: fix cancelling in-flight scrape requests during configuration reload (#3853) 
* lib/promscrape: fix cancelling in-flight scrape requests during configuration reload (see #3747)

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promscrape: fix order of params for `doRequestWithPossibleRetry` to follow codestyle

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promscrape: accept deadline explicitly and extend passed context for local use

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
 2023-02-22 17:49:43 -08:00
Aliaksandr Valialkin
9fd003d54a
all: rename ParseStream -> stream.Parse 
This is a follow-up for 057698f7fb
 2023-02-13 10:53:12 -08:00
Zakhar Bessarab
bbf663bd04
lib/promscrape: fix cancelling in-flight scrape requests during configuration reload (#3791) 
* lib/promscrape: fix cancelling in-flight scrape requests during configuration reload when using `streamParse` mode (see #3747)

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* Update docs/CHANGELOG.md

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-02-09 11:18:36 -08:00
Aliaksandr Valialkin
95d4db0506
lib/promscrape: properly log the actual response size after c4229a1bba 2023-01-23 21:13:06 -08:00
Zakhar Bessarab
de5aad2cde
lib/promscrape/discoveryutils: switch to native http client from fasthttp (#3568) 2023-01-05 21:23:15 -08:00
Aliaksandr Valialkin
d3f8298739
lib/bytesutil: add InternBytes() function as a shortcut to InternString(ToUnsafeString(..)) 2023-01-03 22:15:49 -08:00
Aliaksandr Valialkin
8e9548f050
lib/promscrape: log the actual response size in the error message when the response size exceeds -promscrape.maxScrapeSize 
This is a follow-up for 7ad9fff7e5
 2022-12-28 14:42:45 -08:00
Clément Nussbaumer
04d536c15a
fix(promscrape): check MaxScrapeSize after gzip decompression (#3550) 2022-12-28 14:42:45 -08:00
Aliaksandr Valialkin
1a88fe5b1f
lib/flagutil/bytes.go: properly handle values bigger than 2GiB on 32-bit architectures 
This fixes handling of values bigger than 2GiB for the following command-line flags:

- -storage.minFreeDiskSpaceBytes
- -remoteWrite.maxDiskUsagePerURL
 2022-12-14 19:29:57 -08:00
Aliaksandr Valialkin
be6da5053f
lib/promscrape: optimize service discovery speed 
- 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
1905618d10
all: subsitute ioutil.ReadAll with io.ReadAll 
ioutil.ReadAll is deprecated since Go1.16 - see https://tip.golang.org/doc/go1.16#ioutil
VictoriaMetrics requires at least Go1.18, so it is OK to switch from ioutil.ReadAll to io.ReadAll.

This is a follow-up for 02ca2342ab
 2022-08-22 00:16:04 +03:00
Aliaksandr Valialkin
aa37e6b438
lib/promscrape: retry http requests if the server returns 429 status code 
The 429 status code means that the server is overwhelmed with requests.
The client can retry the request after some wait time.
Implement this strategy for service discovery and scrape requests.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2940
 2022-08-16 14:57:26 +03:00
Aliaksandr Valialkin
5794886662
lib/promscrape: properly set Host header when sending requests via http proxy 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2794
 2022-07-07 02:28:47 +03:00
Aliaksandr Valialkin
3ae6300497
lib/promauth: add ability to send additional http headers in requests to scrape targets 
This solves https://stackoverflow.com/questions/66032498/prometheus-scrape-metric-with-custom-header
 2022-06-22 20:40:50 +03:00
Aliaksandr Valialkin
810dd74fb9
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 00:06:19 +03:00
Nikolay
51a77759c1
lib/promscrape: adds correct http status codes for redirect (#2530) 
standard http client accepts multiple http status codes as redirect
it should fix issue with incorrect redirects
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2482
 2022-05-03 14:01:57 +03:00
Aliaksandr Valialkin
5bd4e47a9e
lib/promscrape: allow up to 5 redirects when scraping a target by default 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1945
 2021-12-16 00:14:45 +02:00
Aliaksandr Valialkin
d445d22c0c
lib/promscrape: add -promscrape.maxResponseHeadersSize command-line flag for tuning the maximum http response headers size from Prometheus scrape targets 2021-11-03 22:27:55 +02:00
Aliaksandr Valialkin
ad445a06cd
lib/promscrape: properly show proxy_url option value at /config page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1755
 2021-10-26 21:24:22 +03:00
Aliaksandr Valialkin
99011c6b63
lib/promscrape: always initialize http client for stream parsing mode 
Stream parsing mode can be automatically enabled when scraping targets with big response bodies
exceeding the -promscrape.minResponseSizeForStreamParse , so it must be always initialized.
 2021-10-16 13:19:48 +03:00
Aliaksandr Valialkin
d8de26bbfd
lib/promscrape: add vm_promscrape_max_scrape_size_exceeded_errors_total metric for counting of the failed scrapes due to the exceeded response size 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1639
 2021-09-23 14:48:16 +03:00
Aliaksandr Valialkin
d90834da70 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 15:21:26 +03:00
Aliaksandr Valialkin
df057177a0 lib/promscrape: increase the duration for reading the full response in stream parsing mode 
Increase the duration from 10x to 30x of the configured `scrape_interval'.

This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1365
 2021-06-14 12:29:46 +03:00
Aliaksandr Valialkin
97de72054e docs: document f0c21b6300 2021-05-27 15:04:13 +03:00
faceair
b801b299f0 lib/promscrape: apply body size & sample limit to stream parse (#1331) 
* lib/promscrape: apply body size limit to stream parse

Signed-off-by: faceair <git@faceair.me>

* lib/promscrape: apply sample limit to stream parse

Signed-off-by: faceair <git@faceair.me>
 2021-05-27 15:04:11 +03:00
Aliaksandr Valialkin
e08287f017 lib/promscrape: reload auth tokens from files every second 
Previously auth tokens were loaded at startup and couldn't be updated without vmagent restart.
Now there is no need in vmagent restart.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1297
 2021-05-14 20:03:35 +03:00
Aliaksandr Valialkin
a6cb4f10a7 app/{vmalert,vmauth}: explicitly set MaxIdleConnsPerHost in net/http.Client.Transport 
By default MaxIdleConnsPerHost is set to 2. This limits the possibility to re-use http keep-alive connections.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1300
 2021-05-14 18:13:34 +03:00
Aliaksandr Valialkin
f13585dc5d vendor: update github.com/VictoriaMetrics/fasthttp from v1.0.14 to v1.0.15 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1289
 2021-05-13 10:47:09 +03:00
Aliaksandr Valialkin
d13906bf1f lib/promscrape: exponentially increase retry interval on unsuccesful requests to scrape targets or to service discovery services 
This should reduce CPU load at vmagent and at remote side when the remote side doesn't accept HTTP requests.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1289
 2021-05-13 10:47:07 +03:00
Aliaksandr Valialkin
320983f650 lib/promscrape: apply scrape_timeout on receiving the first response byte for stream_parse: true scrape targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1017#issuecomment-767235047
 2021-04-23 22:05:00 +03:00
Aliaksandr Valialkin
90da332ea0 lib/promscrape: pass X-Prometheus-Scrape-Timeout-Seconds header to scrape targets as Prometheus does 2021-04-05 12:15:14 +03:00
Aliaksandr Valialkin
dd19fab7c9 lib/promscrape: properly send full url in GET request via simple HTTP proxy 
This is a follow-up for a0ae0f86666a75ec57b45eab2429da7ab4a7b250

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1179
 2021-04-04 01:20:43 +03:00
Aliaksandr Valialkin
ab9e1eb41f lib/promscrape: support for simple HTTP proxies without CONNECT method support such as https://github.com/prometheus-community/PushProx 
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1179
 2021-04-04 00:40:58 +03:00
Aliaksandr Valialkin
2825a1e86d lib/promscrape: add follow_redirect option to scrape_configs section like Prometheus does 
See https://github.com/prometheus/prometheus/pull/8546
 2021-04-02 21:20:37 +03:00
Aliaksandr Valialkin
e2717d84c0 all: various fixes in command-line flag descriptions 2021-03-15 22:03:49 +02:00
Aliaksandr Valialkin
60e0280a94 lib/promscrape: add ability to configure proxy options via proxy_tls_config, proxy_basic_auth, proxy_bearer_token and proxy_bearer_token_file 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-12 03:36:11 +02:00
Aliaksandr Valialkin
9d8223eafb lib/proxy: set missing ServerName in TLS config for proxy_url. 
While at it, allow setting Proxy-Authorization for `proxy_url` via `basic_auth` and `bearer_token` configs.
 2021-03-09 19:01:14 +02:00
Nikolay
1310f84122 Changes tlsConfig init for proxy connections (#1121) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-09 19:01:13 +02:00
Aliaksandr Valialkin
4c59dbc127 lib/promscrape: add vm_promscrape_scrape_retries_total, vm_promscrape_discovery_retries_total and vm_promscrape_discovery_requests_total metrics 2021-02-01 20:06:16 +02:00
Aliaksandr Valialkin
fdced59278 lib/promscrape: retry scrape and service discovery requests when the remote server closes http keep-alive connection 2021-01-22 13:22:59 +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) 
* 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
3bb9bf33d6 lib/promscrape: reduce memory allocations when unpacking gzipped responses received from scrape targets 2020-11-26 18:32:16 +02:00
Aliaksandr Valialkin
3dd2282ed9 lib/promscrape: release http response non-200 status code 2020-11-26 13:25:25 +02:00
Aliaksandr Valialkin
3ed9f1d5a9 lib/promscrape: properly handle response body after 301 redirect 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/869
 2020-11-02 01:09:59 +02:00
Nikolay
e8fe618bbb fixes panic at scrape error body formating, (#868) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/864
regression after body reuse improvements
 2020-11-01 23:25:23 +02:00