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lib/promscrape: retry scrape and service discovery requests when the remote server closes http keep-alive connection

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This commit is contained in:
Aliaksandr Valialkin 2021-01-22 13:22:20 +02:00
parent c164a8d231
commit 8cea3c3cc4
3 changed files with 3 additions and 2 deletions
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1
docs/CHANGELOG.md
View File

@ -5,6 +5,7 @@
* FEATURE: added `search.maxStepForPointsAdjustment` command-line flag, which can be used for disabling adjustment for points returned `/api/v1/query_range` handler if such points have timestamps closer than `-search.latencyOffset` to the current time. Such points may contain incomplete data, so they are substituted by the previous values for `step` query args smaller than one minute by default.
* BUGFIX: vmagent: reduce the HTTP reconnection rate to scrape targets. Previously vmagent could errorneusly close HTTP keep-alive connections more often than needed.
* BUGFIX: vmagent: retry scrape and service discovery requests when the remote server closes HTTP keep-alive connection. Previously `disable_keepalive: true` option could be used under `scrape_configs` section when working with such servers.
# [v1.52.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.52.0)

2
lib/promscrape/client.go
View File

@ -252,7 +252,7 @@ func doRequestWithPossibleRetry(hc *fasthttp.HostClient, req *fasthttp.Request,
if err == nil {
return nil
}
if err != fasthttp.ErrConnectionClosed {
if err != fasthttp.ErrConnectionClosed && !strings.Contains(err.Error(), "broken pipe") {
return err
}
// Retry request if the server closes the keep-alive connection unless deadline exceeds.

2
lib/promscrape/discoveryutils/client.go
View File

@ -199,7 +199,7 @@ func doRequestWithPossibleRetry(hc *fasthttp.HostClient, req *fasthttp.Request,
if err == nil {
return nil
}
if err != fasthttp.ErrConnectionClosed {
if err != fasthttp.ErrConnectionClosed && !strings.Contains(err.Error(), "broken pipe") {
return err
}
// Retry request if the server closes the keep-alive connection unless deadline exceeds.