Commit graph

91 commits

Author SHA1 Message Date
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
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
8fd791d399 lib/promscrape: avoid copying response body when scraping targets.
This should reduce memory usage when scraping targets with millions of metrics.
2020-09-18 13:06:00 +03:00
Aliaksandr Valialkin
6aab2f4989 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 17:08:28 +03:00
Aliaksandr Valialkin
1724cc241e 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 22:32:29 +03:00
Aliaksandr Valialkin
87f8c728bf 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 19:50:06 +03:00
Aliaksandr Valialkin
6f1d926698 lib/promscrape: use HostClient.DoDeadline instead of HostClient.Do in order to guarantee strict deadline across multiple scrape attempts 2020-07-03 21:33:48 +03:00
Aliaksandr Valialkin
ee03b4ccbd 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 20:42:09 +03:00
Aliaksandr Valialkin
dfa83a4a35 lib/promscrape: check for nil error before checking for the returned status code when scraping targets 2020-07-03 18:37:25 +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
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/580
2020-07-02 14:19:34 +03:00
Aliaksandr Valialkin
0f754bea49 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 02:20:46 +03:00
Aliaksandr Valialkin
d962568e93 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 23:33:46 +03:00
Aliaksandr Valialkin
a80e852aab 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 12:34:12 +03:00
Aliaksandr Valialkin
b747362936 lib/promscrape: mention about -promscrape.maxScrapeSize in the error message when target returns too big response 2020-05-24 14:41:24 +03:00
Aliaksandr Valialkin
405cf44aed app/vmagent,lib/promscrape: do not set HostClient.DialDualStack, since it isnt used if HostClient.Dial is set 2020-05-12 15:24:53 +03:00
Aliaksandr Valialkin
b6d88bac04 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 16:43:09 +03:00
Aliaksandr Valialkin
53740d0026 lib/promscrape: handle connection reset when targets responds with http redirect 2020-04-28 02:14:32 +03:00
肖贝贝
3e6f29f462 fix: vmagent not follow 301/302 redirect bug (#445)
Co-authored-by: xiaobeibei <xiaobeibei@bigo.sg>
2020-04-28 02:14:31 +03:00
Aliaksandr Valialkin
424068f804 lib/promscrape: handle connection reset when targets responds with http redirect 2020-04-28 02:14:26 +03:00
肖贝贝
7d045bf2ca fix: vmagent not follow 301/302 redirect bug (#445)
Co-authored-by: xiaobeibei <xiaobeibei@bigo.sg>
2020-04-28 02:14:25 +03:00
Aliaksandr Valialkin
266bbec52d 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 23:25:34 +03:00
Aliaksandr Valialkin
7fbfef2aee lib/promscrape: extract common auth code to lib/promauth 2020-04-13 12:59:22 +03:00
Aliaksandr Valialkin
d39dd8aa69 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 13:31:20 +02:00
Aliaksandr Valialkin
7ee7614e90 app/vmagent: initial implementation for vmagent 2020-02-23 17:31:54 +02:00