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Set MaxIdleConnsPerHost alongside MaxIdleConns (#3592)

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Otherwise it defaults to 2, and Go will close extra connections as
soon as a request is finished.
See https://github.com/golang/go/issues/13801
This commit is contained in:
Bryan Boreham 2017-12-17 15:15:04 +00:00 committed by Brian Brazil
parent 9083d41d3a
commit a8cce41882
1 changed files with 6 additions and 5 deletions
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11
util/httputil/client.go
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@ -41,11 +41,12 @@ func NewClientFromConfig(cfg config.HTTPClientConfig, name string) (*http.Client
// The only timeout we care about is the configured scrape timeout. // The only timeout we care about is the configured scrape timeout.
// It is applied on request. So we leave out any timings here. // It is applied on request. So we leave out any timings here.
var rt http.RoundTripper = &http.Transport{ var rt http.RoundTripper = &http.Transport{
Proxy: http.ProxyURL(cfg.ProxyURL.URL), Proxy: http.ProxyURL(cfg.ProxyURL.URL),
MaxIdleConns: 20000, MaxIdleConns: 20000,
DisableKeepAlives: false, MaxIdleConnsPerHost: 1000, // see https://github.com/golang/go/issues/13801
TLSClientConfig: tlsConfig, DisableKeepAlives: false,
DisableCompression: true, TLSClientConfig: tlsConfig,
DisableCompression: true,
// 5 minutes is typically above the maximum sane scrape interval. So we can // 5 minutes is typically above the maximum sane scrape interval. So we can
// use keepalive for all configurations. // use keepalive for all configurations.
IdleConnTimeout: 5 * time.Minute, IdleConnTimeout: 5 * time.Minute,