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app/vmagent/remotewrite: add missing resp.Body.Close() after pushing data to remote storage

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Missing body close could disable HTTP keep-alive connections.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/653
This commit is contained in:
Aliaksandr Valialkin 2020-07-28 20:52:00 +03:00
parent 0f6f0d30d3
commit baebe86844
1 changed files with 28 additions and 23 deletions
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51
app/vmagent/remotewrite/client.go
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@ -220,28 +220,33 @@ again:
goto again
}
statusCode := resp.StatusCode
if statusCode/100 != 2 {
metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_requests_total{url=%q, status_code="%d"}`, c.urlLabelValue, statusCode)).Inc()
retryDuration *= 2
if retryDuration > time.Minute {
retryDuration = time.Minute
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
logger.Errorf("cannot read response body from %q: %s", c.remoteWriteURL, err)
} else {
logger.Errorf("unexpected status code received after sending a block with size %d bytes to %q: %d; response body=%q; re-sending the block in %.3f seconds",
len(block), c.remoteWriteURL, statusCode, body, retryDuration.Seconds())
}
t := time.NewTimer(retryDuration)
select {
case <-c.stopCh:
t.Stop()
return
case <-t.C:
}
c.retriesCount.Inc()
goto again
if statusCode/100 == 2 {
_ = resp.Body.Close()
c.requestsOKCount.Inc()
return
}
c.requestsOKCount.Inc()
// Unexpected status code returned
metrics.GetOrCreateCounter(fmt.Sprintf(`vmagent_remotewrite_requests_total{url=%q, status_code="%d"}`, c.urlLabelValue, statusCode)).Inc()
retryDuration *= 2
if retryDuration > time.Minute {
retryDuration = time.Minute
}
body, err := ioutil.ReadAll(resp.Body)
_ = resp.Body.Close()
if err != nil {
logger.Errorf("cannot read response body from %q: %s", c.remoteWriteURL, err)
} else {
logger.Errorf("unexpected status code received after sending a block with size %d bytes to %q: %d; response body=%q; re-sending the block in %.3f seconds",
len(block), c.remoteWriteURL, statusCode, body, retryDuration.Seconds())
}
t := time.NewTimer(retryDuration)
select {
case <-c.stopCh:
t.Stop()
return
case <-t.C:
}
c.retriesCount.Inc()
goto again
}