mirror of
https://github.com/minio/minio.git
synced 2025-10-31 16:21:49 +01:00
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright (c) 2015-2022 MinIO, Inc.
|
|
//
|
|
// This file is part of MinIO Object Storage stack
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package rest
|
|
|
|
import (
|
|
"net/http"
|
|
"net/http/httptrace"
|
|
"sync/atomic"
|
|
"time"
|
|
)
|
|
|
|
var globalStats = struct {
|
|
errs uint64
|
|
|
|
tcpDialErrs uint64
|
|
tcpDialCount uint64
|
|
tcpDialTotalDur uint64
|
|
}{}
|
|
|
|
// RPCStats holds information about the DHCP/TCP metrics and errors
|
|
type RPCStats struct {
|
|
Errs uint64
|
|
|
|
DialAvgDuration uint64
|
|
DialErrs uint64
|
|
}
|
|
|
|
// GetRPCStats returns RPC stats, include calls errors and dhcp/tcp metrics
|
|
func GetRPCStats() RPCStats {
|
|
s := RPCStats{
|
|
Errs: atomic.LoadUint64(&globalStats.errs),
|
|
DialErrs: atomic.LoadUint64(&globalStats.tcpDialErrs),
|
|
}
|
|
if v := atomic.LoadUint64(&globalStats.tcpDialCount); v > 0 {
|
|
s.DialAvgDuration = atomic.LoadUint64(&globalStats.tcpDialTotalDur) / v
|
|
}
|
|
return s
|
|
}
|
|
|
|
// Return a function which update the global stats related to tcp connections
|
|
func setupReqStatsUpdate(req *http.Request) (*http.Request, func()) {
|
|
var dialStart, dialEnd int64
|
|
|
|
trace := &httptrace.ClientTrace{
|
|
ConnectStart: func(network, addr string) {
|
|
atomic.StoreInt64(&dialStart, time.Now().UnixNano())
|
|
},
|
|
ConnectDone: func(network, addr string, err error) {
|
|
if err == nil {
|
|
atomic.StoreInt64(&dialEnd, time.Now().UnixNano())
|
|
}
|
|
},
|
|
}
|
|
|
|
return req.WithContext(httptrace.WithClientTrace(req.Context(), trace)), func() {
|
|
if ds := atomic.LoadInt64(&dialStart); ds > 0 {
|
|
if de := atomic.LoadInt64(&dialEnd); de == 0 {
|
|
atomic.AddUint64(&globalStats.tcpDialErrs, 1)
|
|
} else if de >= ds {
|
|
atomic.AddUint64(&globalStats.tcpDialCount, 1)
|
|
atomic.AddUint64(&globalStats.tcpDialTotalDur, uint64(dialEnd-dialStart))
|
|
}
|
|
}
|
|
}
|
|
}
|