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
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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
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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
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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
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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
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The upstream fasthttp may contain issues like 996610f021
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 )
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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
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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
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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
