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fix: race when accessing REST TCP dial values (#15770)

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Anis Elleuch 2022-09-29 17:27:58 +01:00 committed by GitHub
parent f69a98ce49
commit 6287e8c571
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 7 deletions
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14
internal/rest/rpc-stats.go
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@ -54,26 +54,26 @@ func GetRPCStats() RPCStats {
// Return a function which update the global stats related to tcp connections
func setupReqStatsUpdate(req *http.Request) (*http.Request, func()) {
var dialStart, dialEnd time.Time
var dialStart, dialEnd int64
trace := &httptrace.ClientTrace{
ConnectStart: func(network, addr string) {
dialStart = time.Now()
atomic.StoreInt64(&dialStart, time.Now().UnixNano())
},
ConnectDone: func(network, addr string, err error) {
if err == nil {
dialEnd = time.Now()
atomic.StoreInt64(&dialEnd, time.Now().UnixNano())
}
},
}
return req.WithContext(httptrace.WithClientTrace(req.Context(), trace)), func() {
if !dialStart.IsZero() {
if dialEnd.IsZero() {
if ds := atomic.LoadInt64(&dialStart); ds > 0 {
if de := atomic.LoadInt64(&dialEnd); de == 0 {
atomic.AddUint64(&globalStats.tcpDialErrs, 1)
} else {
} else if de >= ds {
atomic.AddUint64(&globalStats.tcpDialCount, 1)
atomic.AddUint64(&globalStats.tcpDialTotalDur, uint64(dialEnd.Sub(dialStart)))
atomic.AddUint64(&globalStats.tcpDialTotalDur, uint64(dialEnd-dialStart))
}
}
}