minio/cmd/gateway-metrics.go

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// Copyright (c) 2015-2021 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 cmd
import (
"net/http"
"sync/atomic"
)
// RequestStats - counts for Get and Head requests
type RequestStats struct {
Get uint64 `json:"Get"`
Head uint64 `json:"Head"`
Put uint64 `json:"Put"`
Post uint64 `json:"Post"`
}
// IncBytesReceived - Increase total bytes received from gateway backend
func (s *BackendMetrics) IncBytesReceived(n uint64) {
atomic.AddUint64(&s.bytesReceived, n)
}
// GetBytesReceived - Get total bytes received from gateway backend
func (s *BackendMetrics) GetBytesReceived() uint64 {
return atomic.LoadUint64(&s.bytesReceived)
}
// IncBytesSent - Increase total bytes sent to gateway backend
func (s *BackendMetrics) IncBytesSent(n uint64) {
atomic.AddUint64(&s.bytesSent, n)
}
// GetBytesSent - Get total bytes received from gateway backend
func (s *BackendMetrics) GetBytesSent() uint64 {
return atomic.LoadUint64(&s.bytesSent)
}
// IncRequests - Increase request count sent to gateway backend by 1
func (s *BackendMetrics) IncRequests(method string) {
// Only increment for Head & Get requests, else no op
if method == http.MethodGet {
atomic.AddUint64(&s.requestStats.Get, 1)
} else if method == http.MethodHead {
atomic.AddUint64(&s.requestStats.Head, 1)
} else if method == http.MethodPut {
atomic.AddUint64(&s.requestStats.Put, 1)
} else if method == http.MethodPost {
atomic.AddUint64(&s.requestStats.Post, 1)
}
}
// GetRequests - Get total number of Get & Headrequests sent to gateway backend
func (s *BackendMetrics) GetRequests() RequestStats {
return s.requestStats
}
// NewMetrics - Prepare new BackendMetrics structure
func NewMetrics() *BackendMetrics {
return &BackendMetrics{}
}