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Scrape: Remove JSON from Accept request header 

JSON is no longer supported as an exposition format [1] [2] [3]. Remove
it from the `Accept` header added to requests when scraping targets.

[1]: https://github.com/prometheus/prometheus/blob/master/CHANGELOG.md#100--2016-07-18
[2]: https://prometheus.io/docs/instrumenting/exposition_formats/#historical-versions
[3]: https://docs.google.com/document/d/1ZjyKiKxZV83VI9ZKAXRGKaUKK2BIWCT7oiGBKDBpjEY/edit?usp=sharing
This commit is contained in:
Matt Bostock 2016-09-17 10:28:03 +01:00
parent a9b96be3fd
commit 4fc619b605
1 changed files with 1 additions and 1 deletions
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2
retrieval/scrape.go
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@ -308,7 +308,7 @@ type targetScraper struct {
client *http.Client
}
const acceptHeader = `application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited;q=0.7,text/plain;version=0.0.4;q=0.3,application/json;schema="prometheus/telemetry";version=0.0.2;q=0.2,*/*;q=0.1`
const acceptHeader = `application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited;q=0.7,text/plain;version=0.0.4;q=0.3,*/*;q=0.1`
func (s *targetScraper) scrape(ctx context.Context, ts time.Time) (model.Samples, error) {
req, err := http.NewRequest("GET", s.URL().String(), nil)