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33 commits

Author SHA1 Message Date
Zakhar Bessarab
322d96bfe5
discovery/{consul,nomad}: fix cancelling serviceWatcher in-flight requests (#3658) 
* lib/promscrape/discovery/{consul,nomad}: fix background service update watches not canceling requests on serviceWatcher stop

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

* lib/promscrape/discovery/{consul,nomad}: fix closing serviseWatcher during scrape job restart

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

* wip

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3468

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
 2023-01-17 21:47:11 -08:00
Aliaksandr Valialkin
28f8dc41b0
lib/promscrape/discoveryutils: cleanup after 5df9fddaf2 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3468
 2023-01-07 01:26:54 -08:00
Zakhar Bessarab
5df9fddaf2
lib/promscrape/discoveryutils: use correct timeout for blocking requests (#3609) 
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
 2023-01-07 01:13:03 -08:00
Aliaksandr Valialkin
f392913d00
lib/promscrape: follow-up after bced9fb978 
- Document the bugfix at docs/CHANGELOG.md
- Wait until all the worker goroutines are done in consulWatcher.mustStop()
- Do not log `context canceled` errors when discovering consul serviceNames
- Removed explicit handling of gzipped responses at lib/promscrape/discoveryutils.Client,
  since this handling is automatically performed by net/http.Transport.
  See DisableCompression option at https://pkg.go.dev/net/http#Transport .
- Remove explicit handling of the proxyURL, since it is automatically handled
  by net/http.Transport. See Proxy option at https://pkg.go.dev/net/http#Transport .
- Expliticly set MaxIdleConnsPerHost, since its default value equals to 2.
  Such a small value may result in excess tcp connection churn
  when more than 2 concurrent requests are processed by lib/promscrape/discoveryutils.Client.
- Do not set explicitly the `Host` request header, since it is automatically set by net/http.Client.
- Backport the bugfix to the recently added nomad_sd_configs - see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3367

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/3468
 2023-01-05 21:13:06 -08:00
Zakhar Bessarab
bced9fb978
lib/promscrape/discoveryutils: switch to native http client from fasthttp (#3568) 2023-01-05 19:34:47 -08:00
Zakhar Bessarab
05b42601c3
lib/promscrape/discovery/azure: remove API server from URL returned by azure (#3403) 
* lib/promscrape/discovery/azure: remove API server from URL returned by azure

* lib/promscrape/discovery/azure: validate nextLink contains same URL as apiServer
 2022-12-08 18:29:10 -08:00
Aliaksandr Valialkin
bb68ab99fa
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 15:01:08 +03:00
Aliaksandr Valialkin
f97355d9fb
lib/promscrape: properly set Host header when sending requests via http proxy 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2794
 2022-07-07 02:27:52 +03:00
Aliaksandr Valialkin
1c4f67c5d2
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 20:39:43 +03:00
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
4821adfd95
lib/promscrape: properly show proxy_url option value at /config page 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1755
 2021-10-26 21:23:54 +03:00
Nikolay
e307bbb29a
adds http_sd (#1399) 
* adds http_sd

* adds X-Prometheus-Refresh-Interval-Seconds header

* Update lib/promscrape/discovery/http/api.go

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-06-22 13:33:37 +03:00
Aliaksandr Valialkin
733706e6c6 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 20:00:08 +03:00
Aliaksandr Valialkin
f6a641de62 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 10:38:50 +03:00
Aliaksandr Valialkin
500e625e8c 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 01:20:06 +03:00
Aliaksandr Valialkin
5153410ced 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 00:40:40 +03:00
Aliaksandr Valialkin
36fd007247 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 18:58:18 +02:00
Nikolay
ad34f42467
Changes tlsConfig init for proxy connections (#1121) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116
 2021-03-09 18:51:00 +02:00
Aliaksandr Valialkin
bd11fd8f1d lib/promscrape: add vm_promscrape_scrape_retries_total, vm_promscrape_discovery_retries_total and vm_promscrape_discovery_requests_total metrics 2021-02-01 20:06:27 +02:00
Aliaksandr Valialkin
8cea3c3cc4 lib/promscrape: retry scrape and service discovery requests when the remote server closes http keep-alive connection 2021-01-22 13:22:33 +02:00
Aliaksandr Valialkin
820669da69 lib/promscrape: code prettifying for 8dd03ecf19 2020-12-24 10:56:10 +02:00
Nikolay
8dd03ecf19
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 10:52:37 +02:00
Aliaksandr Valialkin
5f9d88a3cb lib/promscrape/discovery/consul: reduce load on Consul API server by increasing timeout for blocking requests from 50 seconds to 9 minutes 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-12-11 17:24:13 +02:00
Aliaksandr Valialkin
52915c8f7e lib/promscrape/discoveryutils: remove limit on the number of concurrently running blocking queries 
Too low limit could result in unexpected errors when performing big number of blocking queries.
 2020-12-05 12:15:52 +02:00
Aliaksandr Valialkin
5009b25a03 lib/promscrape: code cleanup after c6dee6c52d 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-12-03 19:50:53 +02:00
Nikolay
c6dee6c52d
Changes consul discovery api (#921) 
* adds consul watch api,
it must reduce load on consul service with blocking wait requests,
changed discoveryClient api with fetchResponseMeta callback.

* small fix

* fix after master merge

* adds watch client at discovery utils

* fixes consul watcher,
changes namings,
fixes data race

* small typo fix

* sanity fix

* fix naming and service node update
 2020-12-03 19:47:40 +02:00
Nikolay Khramchikhin
9bd9f67718
Adds dockerswarm sd (#818) 
* adds dockerswarm service discovery

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/656

 Following roles supported: services, tasks and nodes.
 Basic, token and tls auth supported.
 Added tests for labels generation.

* added unix socket support to discovery utils

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2020-10-12 13:38:21 +03:00
Aliaksandr Valialkin
eead3ee8ec lib/promscrape: properly retry requests on the server closed connection before returning the first response byte error during service discover API calls and target scrapes 2020-08-13 22:31:52 +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
7bf2cbad32 lib/promscrape: reduce default value for -promscrape.discovery.concurrency from 500 to 100 
This should reduce load on Kubernetes API server and Consul when big number of targets are discovered

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
 2020-06-20 17:53:42 +03:00
Aliaksandr Valialkin
cf87b810b7 lib/promscrape: add -promscrape.discovery.concurrency and -promscrape.discovery.concurrentWaitTime flags for tuning the number of concurrent requests to autodiscovery API servers at Consul or Kubernetes 2020-05-19 17:35:53 +03:00
Aliaksandr Valialkin
40c3ffb359 lib/promscrape: add Prometheus-compatible service discovery for Consul aka consul_sd_configs 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/330
 2020-05-04 20:51:17 +03:00
Aliaksandr Valialkin
5ec036439d lib/promscrape: set 30 seconds timeout for discovery api requests 
Previously such requests could hang for long time. This could make debugging harder.
 2020-04-29 17:33:34 +03:00