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Fix instrumentation panic if there is no response (#27567)

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Sofia Papagiannaki 2020-09-14 14:05:47 +03:00 committed by GitHub
parent 7f6e979056
commit f529223455
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1 changed files with 2 additions and 2 deletions
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4
pkg/models/datasource_cache.go
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@ -84,9 +84,9 @@ func instrumentRoundtrip(datasourceName string, next http.RoundTripper) promhttp
promhttp.InstrumentRoundTripperInFlight(requestInFlight, next))). promhttp.InstrumentRoundTripperInFlight(requestInFlight, next))).
RoundTrip(r) RoundTrip(r)
// we avoid measing contentlength less the zero because it indicates // we avoid measuring contentlength less than zero because it indicates
// that the content size is unknown. https://godoc.org/github.com/badu/http#Response // that the content size is unknown. https://godoc.org/github.com/badu/http#Response
if res.ContentLength > 0 { if res != nil && res.ContentLength > 0 {
responseSizeSummary.Observe(float64(res.ContentLength)) responseSizeSummary.Observe(float64(res.ContentLength))
} }