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83 commits

Author SHA1 Message Date
Aliaksandr Valialkin
85a95bf60c all: various fixes in command-line flag descriptions 2021-03-15 21:59:25 +02:00
Aliaksandr Valialkin
a6a71ef861 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 03:36:19 +02:00
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
3a32789352 lib/promscrape: reduce memory allocations when unpacking gzipped responses received from scrape targets 2020-11-26 18:32:06 +02:00
Aliaksandr Valialkin
b0a5c382ee lib/promscrape: release http response non-200 status code 2020-11-26 13:25:17 +02:00
Aliaksandr Valialkin
c0f3be824d lib/promscrape: properly handle response body after 301 redirect 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/869
 2020-11-02 01:09:52 +02:00
Aliaksandr Valialkin
e277c3d07b lib/promscrape: add stream parse mode for efficient scraping of targets that expose millions of metrics 2020-11-01 23:35:06 +02:00
Nikolay
67059caa12
fixes panic at scrape error body formating, (#868) 
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/864
regression after body reuse improvements
 2020-10-29 17:17:52 +03:00
Aliaksandr Valialkin
1a9ee39b0e lib/promscrape: avoid copying response body when scraping targets. 
This should reduce memory usage when scraping targets with millions of metrics.
 2020-09-18 13:05:43 +03:00
Aliaksandr Valialkin
147c35ebd4 all: allow using KB, MB, GB, KiB, MiB and GiB suffixes in command-line flag values related to byte sizes or byte rates 2020-08-16 17:05:52 +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
3e1d7d8489 lib/promscrape: send Accept header similar to Prometheus when scraping targets 
This should fix scraping Spring Boot servers, which return incorrect response
unless `Accept: text/plain` request header is set.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/608
 2020-07-08 19:48:22 +03:00
Aliaksandr Valialkin
ff6a0955eb lib/promscrape: use HostClient.DoDeadline instead of HostClient.Do in order to guarantee strict deadline across multiple scrape attempts 2020-07-03 21:33:22 +03:00
Aliaksandr Valialkin
8b133e40d5 lib/promscrape: prevent from too big deadline misses on scrape retries 
The maximum deadline miss duration is reduced to 2x scrape_interval in the worst case.
By default it is limited to scrape_interval configured for the given scrape target.
 2020-07-03 20:41:36 +03:00
Aliaksandr Valialkin
44a54b8b3d lib/promscrape: check for nil error before checking for the returned status code when scraping targets 2020-07-03 18:37:14 +03:00
Aliaksandr Valialkin
4dd3de9286 lib/promscrape: add ability to set disable_compression and disable_keepalive options in scrape_config section of the config passed to -promscrape.config 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/580
 2020-07-02 14:19:14 +03:00
Aliaksandr Valialkin
8da3f773ae lib/promscrape: add -promscrape.disableKeepAlive command-line flag for disabling http keep-alive connections when scraping targets 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/580
 2020-07-01 02:20:20 +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
4c7f216dfe lib/promscrape: retry performing the request to the server for up to 3 times before giving up when it closes keep-alive connections 
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/580
 2020-06-23 12:33:54 +03:00
Aliaksandr Valialkin
c602284a99 lib/promscrape: mention about -promscrape.maxScrapeSize in the error message when target returns too big response 2020-05-24 14:41:14 +03:00
Aliaksandr Valialkin
8300cc17af app/vmagent,lib/promscrape: do not set HostClient.DialDualStack, since it isnt used if HostClient.Dial is set 2020-05-12 15:24:18 +03:00
Aliaksandr Valialkin
43c39dc36c vendor: use github.com/VictoriaMetrics/fasthttp instead of github.com/fasthttp/fasthttp 
The upstream fasthttp may contain issues like 996610f021 ,
plus a code that isn't used by VictoriaMetrics. So let's use a private copy under our control instead.
 2020-04-29 17:33:34 +03:00
Aliaksandr Valialkin
521df0e2fc lib/promscrape: handle connection reset when targets responds with http redirect 2020-04-28 02:13:02 +03:00
肖贝贝
2b16c188e8
fix: vmagent not follow 301/302 redirect bug (#445) 
Co-authored-by: xiaobeibei <xiaobeibei@bigo.sg>
 2020-04-28 01:29:37 +03:00
Aliaksandr Valialkin
bd4c6d21dd lib/promscrape: retry target scraping when the target closes previously established keep-alive connection to it 
This should fix the following error:

the server closed connection before returning the first response byte. Make sure the server returns 'Connection: close' response header before closing the connection
 2020-04-16 23:25:29 +03:00
Aliaksandr Valialkin
90b4a6dd12 lib/promscrape: extract common auth code to lib/promauth 2020-04-13 12:59:10 +03:00
Aliaksandr Valialkin
7c432da788 lib/promscrape: do not retry idempotent requests when scraping targets 
This should prevent from the following unexpected side-effects of idempotent request retries:
- increased actual timeout when scraping the target comparing to the configured scrape_timeout
- increased load on the target

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/357
 2020-03-09 13:31:52 +02:00
Aliaksandr Valialkin
04762344c6 app/vmagent: initial implementation for vmagent 2020-02-23 13:36:03 +02:00