mirror of https://github.com/minio/minio.git
117 lines
2.7 KiB
Go
117 lines
2.7 KiB
Go
// Copyright (c) 2015-2023 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"context"
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"fmt"
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"sync"
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"time"
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"github.com/minio/madmin-go/v3"
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"github.com/minio/minio/internal/pubsub"
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)
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const bootstrapMsgsLimit = 4 << 10
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type bootstrapInfo struct {
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msg string
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ts time.Time
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source string
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}
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type bootstrapTracer struct {
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mu sync.RWMutex
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idx int
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info [bootstrapMsgsLimit]bootstrapInfo
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lastUpdate time.Time
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}
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var globalBootstrapTracer = &bootstrapTracer{}
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func (bs *bootstrapTracer) DropEvents() {
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bs.mu.Lock()
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defer bs.mu.Unlock()
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if time.Now().UTC().Sub(bs.lastUpdate) > 24*time.Hour {
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bs.info = [4096]bootstrapInfo{}
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bs.idx = 0
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}
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}
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func (bs *bootstrapTracer) Empty() bool {
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var empty bool
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bs.mu.RLock()
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empty = bs.info[0].msg == ""
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bs.mu.RUnlock()
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return empty
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}
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func (bs *bootstrapTracer) Record(msg string, skip int) {
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source := getSource(skip + 1)
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bs.mu.Lock()
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now := time.Now().UTC()
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bs.info[bs.idx] = bootstrapInfo{
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msg: msg,
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ts: now,
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source: source,
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}
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bs.lastUpdate = now
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bs.idx = (bs.idx + 1) % bootstrapMsgsLimit
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bs.mu.Unlock()
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}
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func (bs *bootstrapTracer) Events() []madmin.TraceInfo {
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traceInfo := make([]madmin.TraceInfo, 0, bootstrapMsgsLimit)
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// Add all messages in order
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addAll := func(info []bootstrapInfo) {
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for _, msg := range info {
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if msg.ts.IsZero() {
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continue // skip empty events
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}
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traceInfo = append(traceInfo, madmin.TraceInfo{
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TraceType: madmin.TraceBootstrap,
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Time: msg.ts,
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NodeName: globalLocalNodeName,
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FuncName: "BOOTSTRAP",
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Message: fmt.Sprintf("%s %s", msg.source, msg.msg),
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})
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}
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}
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bs.mu.RLock()
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addAll(bs.info[bs.idx:])
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addAll(bs.info[:bs.idx])
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bs.mu.RUnlock()
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return traceInfo
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}
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func (bs *bootstrapTracer) Publish(ctx context.Context, trace *pubsub.PubSub[madmin.TraceInfo, madmin.TraceType]) {
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if bs.Empty() {
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return
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}
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for _, bsEvent := range bs.Events() {
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select {
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case <-ctx.Done():
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default:
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trace.Publish(bsEvent)
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}
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}
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}
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