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9693c382a8
instead upon any error in renameData(), we still preserve the existing dataDir in some form for recoverability in strange situations such as out of disk space type errors. Bonus: avoid running list and heal() instead allow versions disparity to return the actual versions, uuid to heal. Currently limit this to 100 versions and lesser disparate objects. an undo now reverts back the xl.meta from xl.meta.bkp during overwrites on such flaky setups. Bonus: Save N depth syscalls via skipping the parents upon overwrites and versioned updates. Flaky setup examples are stretch clusters with regular packet drops etc, we need to add some defensive code around to avoid dangling objects.
1121 lines
33 KiB
Go
1121 lines
33 KiB
Go
// Copyright (c) 2015-2024 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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"errors"
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"fmt"
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"io"
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"math/rand"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/minio/madmin-go/v3"
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"github.com/minio/minio/internal/cachevalue"
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"github.com/minio/minio/internal/grid"
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xioutil "github.com/minio/minio/internal/ioutil"
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"github.com/minio/minio/internal/logger"
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)
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//go:generate stringer -type=storageMetric -trimprefix=storageMetric $GOFILE
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type storageMetric uint8
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const (
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storageMetricMakeVolBulk storageMetric = iota
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storageMetricMakeVol
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storageMetricListVols
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storageMetricStatVol
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storageMetricDeleteVol
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storageMetricWalkDir
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storageMetricListDir
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storageMetricReadFile
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storageMetricAppendFile
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storageMetricCreateFile
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storageMetricReadFileStream
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storageMetricRenameFile
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storageMetricRenameData
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storageMetricCheckParts
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storageMetricDelete
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storageMetricDeleteVersions
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storageMetricVerifyFile
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storageMetricWriteAll
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storageMetricDeleteVersion
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storageMetricWriteMetadata
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storageMetricUpdateMetadata
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storageMetricReadVersion
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storageMetricReadXL
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storageMetricReadAll
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storageMetricStatInfoFile
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storageMetricReadMultiple
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storageMetricDeleteAbandonedParts
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storageMetricDiskInfo
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// .... add more
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storageMetricLast
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)
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// Detects change in underlying disk.
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type xlStorageDiskIDCheck struct {
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totalWrites atomic.Uint64
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totalDeletes atomic.Uint64
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totalErrsAvailability atomic.Uint64 // Captures all data availability errors such as faulty disk, timeout errors.
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totalErrsTimeout atomic.Uint64 // Captures all timeout only errors
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// apiCalls should be placed first so alignment is guaranteed for atomic operations.
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apiCalls [storageMetricLast]uint64
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apiLatencies [storageMetricLast]*lockedLastMinuteLatency
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diskID atomic.Pointer[string]
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storage *xlStorage
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health *diskHealthTracker
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healthCheck bool
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metricsCache *cachevalue.Cache[DiskMetrics]
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diskCtx context.Context
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diskCancel context.CancelFunc
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}
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func (p *xlStorageDiskIDCheck) getMetrics() DiskMetrics {
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p.metricsCache.InitOnce(5*time.Second,
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cachevalue.Opts{},
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func() (DiskMetrics, error) {
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diskMetric := DiskMetrics{
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LastMinute: make(map[string]AccElem, len(p.apiLatencies)),
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APICalls: make(map[string]uint64, len(p.apiCalls)),
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}
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for i, v := range p.apiLatencies {
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diskMetric.LastMinute[storageMetric(i).String()] = v.total()
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}
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for i := range p.apiCalls {
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diskMetric.APICalls[storageMetric(i).String()] = atomic.LoadUint64(&p.apiCalls[i])
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}
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return diskMetric, nil
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},
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)
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diskMetric, _ := p.metricsCache.Get()
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// Do not need this value to be cached.
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diskMetric.TotalErrorsTimeout = p.totalErrsTimeout.Load()
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diskMetric.TotalErrorsAvailability = p.totalErrsAvailability.Load()
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return diskMetric
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}
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// lockedLastMinuteLatency accumulates totals lockless for each second.
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type lockedLastMinuteLatency struct {
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cachedSec int64
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cached atomic.Pointer[AccElem]
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mu sync.Mutex
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init sync.Once
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lastMinuteLatency
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}
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func (e *lockedLastMinuteLatency) add(value time.Duration) {
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e.addSize(value, 0)
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}
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// addSize will add a duration and size.
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func (e *lockedLastMinuteLatency) addSize(value time.Duration, sz int64) {
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// alloc on every call, so we have a clean entry to swap in.
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t := time.Now().Unix()
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e.init.Do(func() {
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e.cached.Store(&AccElem{})
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atomic.StoreInt64(&e.cachedSec, t)
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})
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acc := e.cached.Load()
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if lastT := atomic.LoadInt64(&e.cachedSec); lastT != t {
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// Check if lastT was changed by someone else.
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if atomic.CompareAndSwapInt64(&e.cachedSec, lastT, t) {
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// Now we swap in a new.
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newAcc := &AccElem{}
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old := e.cached.Swap(newAcc)
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var a AccElem
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a.Size = atomic.LoadInt64(&old.Size)
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a.Total = atomic.LoadInt64(&old.Total)
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a.N = atomic.LoadInt64(&old.N)
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e.mu.Lock()
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e.lastMinuteLatency.addAll(t-1, a)
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e.mu.Unlock()
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acc = newAcc
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} else {
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// We may be able to grab the new accumulator by yielding.
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runtime.Gosched()
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acc = e.cached.Load()
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}
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}
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atomic.AddInt64(&acc.N, 1)
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atomic.AddInt64(&acc.Total, int64(value))
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atomic.AddInt64(&acc.Size, sz)
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}
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// total returns the total call count and latency for the last minute.
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func (e *lockedLastMinuteLatency) total() AccElem {
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e.mu.Lock()
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defer e.mu.Unlock()
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return e.lastMinuteLatency.getTotal()
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}
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func newXLStorageDiskIDCheck(storage *xlStorage, healthCheck bool) *xlStorageDiskIDCheck {
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xl := xlStorageDiskIDCheck{
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storage: storage,
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health: newDiskHealthTracker(),
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healthCheck: healthCheck && globalDriveMonitoring,
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metricsCache: cachevalue.New[DiskMetrics](),
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}
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xl.SetDiskID(emptyDiskID)
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xl.totalWrites.Store(xl.storage.getWriteAttribute())
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xl.totalDeletes.Store(xl.storage.getDeleteAttribute())
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xl.diskCtx, xl.diskCancel = context.WithCancel(context.TODO())
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for i := range xl.apiLatencies[:] {
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xl.apiLatencies[i] = &lockedLastMinuteLatency{}
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}
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if xl.healthCheck {
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go xl.monitorDiskWritable(xl.diskCtx)
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}
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return &xl
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}
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func (p *xlStorageDiskIDCheck) String() string {
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return p.storage.String()
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}
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func (p *xlStorageDiskIDCheck) IsOnline() bool {
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storedDiskID, err := p.storage.GetDiskID()
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if err != nil {
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return false
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}
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return storedDiskID == *p.diskID.Load()
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}
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func (p *xlStorageDiskIDCheck) LastConn() time.Time {
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return p.storage.LastConn()
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}
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func (p *xlStorageDiskIDCheck) IsLocal() bool {
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return p.storage.IsLocal()
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}
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func (p *xlStorageDiskIDCheck) Endpoint() Endpoint {
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return p.storage.Endpoint()
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}
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func (p *xlStorageDiskIDCheck) Hostname() string {
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return p.storage.Hostname()
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}
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func (p *xlStorageDiskIDCheck) Healing() *healingTracker {
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return p.storage.Healing()
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}
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func (p *xlStorageDiskIDCheck) NSScanner(ctx context.Context, cache dataUsageCache, updates chan<- dataUsageEntry, scanMode madmin.HealScanMode, _ func() bool) (dataUsageCache, error) {
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if contextCanceled(ctx) {
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xioutil.SafeClose(updates)
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return dataUsageCache{}, ctx.Err()
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}
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if err := p.checkDiskStale(); err != nil {
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xioutil.SafeClose(updates)
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return dataUsageCache{}, err
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}
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weSleep := func() bool {
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return scannerIdleMode.Load() == 0
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}
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return p.storage.NSScanner(ctx, cache, updates, scanMode, weSleep)
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}
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func (p *xlStorageDiskIDCheck) GetDiskLoc() (poolIdx, setIdx, diskIdx int) {
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return p.storage.GetDiskLoc()
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}
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func (p *xlStorageDiskIDCheck) Close() error {
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p.diskCancel()
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return p.storage.Close()
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}
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func (p *xlStorageDiskIDCheck) GetDiskID() (string, error) {
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return p.storage.GetDiskID()
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}
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func (p *xlStorageDiskIDCheck) SetDiskID(id string) {
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p.diskID.Store(&id)
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}
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func (p *xlStorageDiskIDCheck) checkDiskStale() error {
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if *p.diskID.Load() == emptyDiskID {
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// For empty disk-id we allow the call as the server might be
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// coming up and trying to read format.json or create format.json
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return nil
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}
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storedDiskID, err := p.storage.GetDiskID()
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if err != nil {
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// return any error generated while reading `format.json`
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return err
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}
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if err == nil && *p.diskID.Load() == storedDiskID {
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return nil
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}
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// not the same disk we remember, take it offline.
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return errDiskNotFound
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}
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func (p *xlStorageDiskIDCheck) DiskInfo(ctx context.Context, opts DiskInfoOptions) (info DiskInfo, err error) {
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if contextCanceled(ctx) {
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return DiskInfo{}, ctx.Err()
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}
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si := p.updateStorageMetrics(storageMetricDiskInfo)
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defer si(&err)
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if opts.NoOp {
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if opts.Metrics {
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info.Metrics = p.getMetrics()
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}
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info.Metrics.TotalWrites = p.totalWrites.Load()
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info.Metrics.TotalDeletes = p.totalDeletes.Load()
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info.Metrics.TotalWaiting = uint32(p.health.waiting.Load())
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info.Metrics.TotalErrorsTimeout = p.totalErrsTimeout.Load()
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info.Metrics.TotalErrorsAvailability = p.totalErrsAvailability.Load()
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if p.health.isFaulty() {
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// if disk is already faulty return faulty for 'mc admin info' output and prometheus alerts.
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return info, errFaultyDisk
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}
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return info, nil
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}
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defer func() {
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if opts.Metrics {
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info.Metrics = p.getMetrics()
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}
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info.Metrics.TotalWrites = p.totalWrites.Load()
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info.Metrics.TotalDeletes = p.totalDeletes.Load()
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info.Metrics.TotalWaiting = uint32(p.health.waiting.Load())
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info.Metrics.TotalErrorsTimeout = p.totalErrsTimeout.Load()
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info.Metrics.TotalErrorsAvailability = p.totalErrsAvailability.Load()
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}()
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if p.health.isFaulty() {
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// if disk is already faulty return faulty for 'mc admin info' output and prometheus alerts.
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return info, errFaultyDisk
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}
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info, err = p.storage.DiskInfo(ctx, opts)
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if err != nil {
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return info, err
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}
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// check cached diskID against backend
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// only if its non-empty.
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cachedID := *p.diskID.Load()
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if cachedID != "" && cachedID != info.ID {
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return info, errDiskNotFound
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}
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return info, nil
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}
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func (p *xlStorageDiskIDCheck) MakeVolBulk(ctx context.Context, volumes ...string) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricMakeVolBulk, volumes...)
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if err != nil {
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return err
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}
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defer done(&err)
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w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
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return w.Run(func() error { return p.storage.MakeVolBulk(ctx, volumes...) })
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}
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func (p *xlStorageDiskIDCheck) MakeVol(ctx context.Context, volume string) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricMakeVol, volume)
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if err != nil {
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return err
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}
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defer done(&err)
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w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
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return w.Run(func() error { return p.storage.MakeVol(ctx, volume) })
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}
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func (p *xlStorageDiskIDCheck) ListVols(ctx context.Context) (vi []VolInfo, err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricListVols, "/")
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if err != nil {
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return nil, err
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}
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defer done(&err)
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return p.storage.ListVols(ctx)
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}
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func (p *xlStorageDiskIDCheck) StatVol(ctx context.Context, volume string) (vol VolInfo, err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricStatVol, volume)
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if err != nil {
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return vol, err
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}
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defer done(&err)
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return xioutil.WithDeadline[VolInfo](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result VolInfo, err error) {
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return p.storage.StatVol(ctx, volume)
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})
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}
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func (p *xlStorageDiskIDCheck) DeleteVol(ctx context.Context, volume string, forceDelete bool) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteVol, volume)
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if err != nil {
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return err
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}
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defer done(&err)
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w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
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return w.Run(func() error { return p.storage.DeleteVol(ctx, volume, forceDelete) })
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}
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func (p *xlStorageDiskIDCheck) ListDir(ctx context.Context, origvolume, volume, dirPath string, count int) (s []string, err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricListDir, volume, dirPath)
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if err != nil {
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return nil, err
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}
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defer done(&err)
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return p.storage.ListDir(ctx, origvolume, volume, dirPath, count)
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}
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// Legacy API - does not have any deadlines
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func (p *xlStorageDiskIDCheck) ReadFile(ctx context.Context, volume string, path string, offset int64, buf []byte, verifier *BitrotVerifier) (n int64, err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadFile, volume, path)
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if err != nil {
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return 0, err
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}
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defer done(&err)
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return xioutil.WithDeadline[int64](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result int64, err error) {
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return p.storage.ReadFile(ctx, volume, path, offset, buf, verifier)
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})
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}
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// Legacy API - does not have any deadlines
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func (p *xlStorageDiskIDCheck) AppendFile(ctx context.Context, volume string, path string, buf []byte) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricAppendFile, volume, path)
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if err != nil {
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return err
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}
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defer done(&err)
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w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
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return w.Run(func() error {
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return p.storage.AppendFile(ctx, volume, path, buf)
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})
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}
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func (p *xlStorageDiskIDCheck) CreateFile(ctx context.Context, origvolume, volume, path string, size int64, reader io.Reader) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricCreateFile, volume, path)
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if err != nil {
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return err
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}
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defer done(&err)
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return p.storage.CreateFile(ctx, origvolume, volume, path, size, io.NopCloser(reader))
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}
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func (p *xlStorageDiskIDCheck) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadFileStream, volume, path)
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if err != nil {
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return nil, err
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}
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defer done(&err)
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return xioutil.WithDeadline[io.ReadCloser](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result io.ReadCloser, err error) {
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return p.storage.ReadFileStream(ctx, volume, path, offset, length)
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})
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}
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func (p *xlStorageDiskIDCheck) RenameFile(ctx context.Context, srcVolume, srcPath, dstVolume, dstPath string) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricRenameFile, srcVolume, srcPath, dstVolume, dstPath)
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if err != nil {
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return err
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}
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defer done(&err)
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w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
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return w.Run(func() error { return p.storage.RenameFile(ctx, srcVolume, srcPath, dstVolume, dstPath) })
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}
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func (p *xlStorageDiskIDCheck) RenameData(ctx context.Context, srcVolume, srcPath string, fi FileInfo, dstVolume, dstPath string, opts RenameOptions) (res RenameDataResp, err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricRenameData, srcPath, fi.DataDir, dstVolume, dstPath)
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if err != nil {
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return res, err
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}
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defer func() {
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if err == nil && !skipAccessChecks(dstVolume) {
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p.storage.setWriteAttribute(p.totalWrites.Add(1))
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}
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done(&err)
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}()
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// Copy inline data to a new buffer to function with deadlines.
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if len(fi.Data) > 0 {
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fi.Data = append(grid.GetByteBufferCap(len(fi.Data))[:0], fi.Data...)
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}
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return xioutil.WithDeadline[RenameDataResp](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (res RenameDataResp, err error) {
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if len(fi.Data) > 0 {
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defer grid.PutByteBuffer(fi.Data)
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}
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return p.storage.RenameData(ctx, srcVolume, srcPath, fi, dstVolume, dstPath, opts)
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})
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}
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func (p *xlStorageDiskIDCheck) CheckParts(ctx context.Context, volume string, path string, fi FileInfo) (err error) {
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ctx, done, err := p.TrackDiskHealth(ctx, storageMetricCheckParts, volume, path)
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|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.CheckParts(ctx, volume, path, fi) })
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) Delete(ctx context.Context, volume string, path string, deleteOpts DeleteOptions) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDelete, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.Delete(ctx, volume, path, deleteOpts) })
|
|
}
|
|
|
|
// DeleteVersions deletes slice of versions, it can be same object
|
|
// or multiple objects.
|
|
func (p *xlStorageDiskIDCheck) DeleteVersions(ctx context.Context, volume string, versions []FileInfoVersions, opts DeleteOptions) (errs []error) {
|
|
// Merely for tracing storage
|
|
path := ""
|
|
if len(versions) > 0 {
|
|
path = versions[0].Name
|
|
}
|
|
errs = make([]error, len(versions))
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteVersions, volume, path)
|
|
if err != nil {
|
|
for i := range errs {
|
|
errs[i] = ctx.Err()
|
|
}
|
|
return errs
|
|
}
|
|
defer func() {
|
|
if !skipAccessChecks(volume) {
|
|
var permanentDeletes uint64
|
|
var deleteMarkers uint64
|
|
|
|
for i, nerr := range errs {
|
|
if nerr != nil {
|
|
continue
|
|
}
|
|
for _, fi := range versions[i].Versions {
|
|
if fi.Deleted {
|
|
// Delete markers are a write operation not a permanent delete.
|
|
deleteMarkers++
|
|
continue
|
|
}
|
|
permanentDeletes++
|
|
}
|
|
}
|
|
if deleteMarkers > 0 {
|
|
p.storage.setWriteAttribute(p.totalWrites.Add(deleteMarkers))
|
|
}
|
|
if permanentDeletes > 0 {
|
|
p.storage.setDeleteAttribute(p.totalDeletes.Add(permanentDeletes))
|
|
}
|
|
}
|
|
done(&err)
|
|
}()
|
|
|
|
errs = p.storage.DeleteVersions(ctx, volume, versions, opts)
|
|
for i := range errs {
|
|
if errs[i] != nil {
|
|
err = errs[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
return errs
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) VerifyFile(ctx context.Context, volume, path string, fi FileInfo) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricVerifyFile, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
return p.storage.VerifyFile(ctx, volume, path, fi)
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) WriteAll(ctx context.Context, volume string, path string, b []byte) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricWriteAll, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.WriteAll(ctx, volume, path, b) })
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) DeleteVersion(ctx context.Context, volume, path string, fi FileInfo, forceDelMarker bool, opts DeleteOptions) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteVersion, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer func() {
|
|
defer done(&err)
|
|
|
|
if err == nil && !skipAccessChecks(volume) {
|
|
if opts.UndoWrite {
|
|
p.storage.setWriteAttribute(p.totalWrites.Add(^uint64(0)))
|
|
return
|
|
}
|
|
|
|
if fi.Deleted {
|
|
// Delete markers are a write operation not a permanent delete.
|
|
p.storage.setWriteAttribute(p.totalWrites.Add(1))
|
|
return
|
|
}
|
|
|
|
p.storage.setDeleteAttribute(p.totalDeletes.Add(1))
|
|
}
|
|
}()
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.DeleteVersion(ctx, volume, path, fi, forceDelMarker, opts) })
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) UpdateMetadata(ctx context.Context, volume, path string, fi FileInfo, opts UpdateMetadataOpts) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricUpdateMetadata, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.UpdateMetadata(ctx, volume, path, fi, opts) })
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) WriteMetadata(ctx context.Context, origvolume, volume, path string, fi FileInfo) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricWriteMetadata, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.WriteMetadata(ctx, origvolume, volume, path, fi) })
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) ReadVersion(ctx context.Context, origvolume, volume, path, versionID string, opts ReadOptions) (fi FileInfo, err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadVersion, volume, path)
|
|
if err != nil {
|
|
return fi, err
|
|
}
|
|
defer done(&err)
|
|
|
|
return xioutil.WithDeadline[FileInfo](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result FileInfo, err error) {
|
|
return p.storage.ReadVersion(ctx, origvolume, volume, path, versionID, opts)
|
|
})
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) ReadAll(ctx context.Context, volume string, path string) (buf []byte, err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadAll, volume, path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer done(&err)
|
|
|
|
return xioutil.WithDeadline[[]byte](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result []byte, err error) {
|
|
return p.storage.ReadAll(ctx, volume, path)
|
|
})
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) ReadXL(ctx context.Context, volume string, path string, readData bool) (rf RawFileInfo, err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadXL, volume, path)
|
|
if err != nil {
|
|
return RawFileInfo{}, err
|
|
}
|
|
defer done(&err)
|
|
|
|
return xioutil.WithDeadline[RawFileInfo](ctx, globalDriveConfig.GetMaxTimeout(), func(ctx context.Context) (result RawFileInfo, err error) {
|
|
return p.storage.ReadXL(ctx, volume, path, readData)
|
|
})
|
|
}
|
|
|
|
func (p *xlStorageDiskIDCheck) StatInfoFile(ctx context.Context, volume, path string, glob bool) (stat []StatInfo, err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricStatInfoFile, volume, path)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer done(&err)
|
|
|
|
return p.storage.StatInfoFile(ctx, volume, path, glob)
|
|
}
|
|
|
|
// ReadMultiple will read multiple files and send each files as response.
|
|
// Files are read and returned in the given order.
|
|
// The resp channel is closed before the call returns.
|
|
// Only a canceled context will return an error.
|
|
func (p *xlStorageDiskIDCheck) ReadMultiple(ctx context.Context, req ReadMultipleReq, resp chan<- ReadMultipleResp) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricReadMultiple, req.Bucket, req.Prefix)
|
|
if err != nil {
|
|
xioutil.SafeClose(resp)
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
return p.storage.ReadMultiple(ctx, req, resp)
|
|
}
|
|
|
|
// CleanAbandonedData will read metadata of the object on disk
|
|
// and delete any data directories and inline data that isn't referenced in metadata.
|
|
func (p *xlStorageDiskIDCheck) CleanAbandonedData(ctx context.Context, volume string, path string) (err error) {
|
|
ctx, done, err := p.TrackDiskHealth(ctx, storageMetricDeleteAbandonedParts, volume, path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer done(&err)
|
|
|
|
w := xioutil.NewDeadlineWorker(globalDriveConfig.GetMaxTimeout())
|
|
return w.Run(func() error { return p.storage.CleanAbandonedData(ctx, volume, path) })
|
|
}
|
|
|
|
func storageTrace(s storageMetric, startTime time.Time, duration time.Duration, path string, err string, custom map[string]string) madmin.TraceInfo {
|
|
return madmin.TraceInfo{
|
|
TraceType: madmin.TraceStorage,
|
|
Time: startTime,
|
|
NodeName: globalLocalNodeName,
|
|
FuncName: "storage." + s.String(),
|
|
Duration: duration,
|
|
Path: path,
|
|
Error: err,
|
|
Custom: custom,
|
|
}
|
|
}
|
|
|
|
func scannerTrace(s scannerMetric, startTime time.Time, duration time.Duration, path string, custom map[string]string) madmin.TraceInfo {
|
|
return madmin.TraceInfo{
|
|
TraceType: madmin.TraceScanner,
|
|
Time: startTime,
|
|
NodeName: globalLocalNodeName,
|
|
FuncName: "scanner." + s.String(),
|
|
Duration: duration,
|
|
Path: path,
|
|
Custom: custom,
|
|
}
|
|
}
|
|
|
|
// Update storage metrics
|
|
func (p *xlStorageDiskIDCheck) updateStorageMetrics(s storageMetric, paths ...string) func(err *error) {
|
|
startTime := time.Now()
|
|
trace := globalTrace.NumSubscribers(madmin.TraceStorage) > 0
|
|
return func(errp *error) {
|
|
duration := time.Since(startTime)
|
|
|
|
var err error
|
|
if errp != nil && *errp != nil {
|
|
err = *errp
|
|
}
|
|
|
|
atomic.AddUint64(&p.apiCalls[s], 1)
|
|
if IsErr(err, []error{
|
|
errFaultyDisk,
|
|
errFaultyRemoteDisk,
|
|
context.DeadlineExceeded,
|
|
}...) {
|
|
p.totalErrsAvailability.Add(1)
|
|
if errors.Is(err, context.DeadlineExceeded) {
|
|
p.totalErrsTimeout.Add(1)
|
|
}
|
|
}
|
|
|
|
p.apiLatencies[s].add(duration)
|
|
|
|
if trace {
|
|
custom := make(map[string]string, 2)
|
|
paths = append([]string{p.String()}, paths...)
|
|
var errStr string
|
|
if err != nil {
|
|
errStr = err.Error()
|
|
}
|
|
custom["total-errs-timeout"] = strconv.FormatUint(p.totalErrsTimeout.Load(), 10)
|
|
custom["total-errs-availability"] = strconv.FormatUint(p.totalErrsAvailability.Load(), 10)
|
|
globalTrace.Publish(storageTrace(s, startTime, duration, strings.Join(paths, " "), errStr, custom))
|
|
}
|
|
}
|
|
}
|
|
|
|
const (
|
|
diskHealthOK int32 = iota
|
|
diskHealthFaulty
|
|
)
|
|
|
|
type diskHealthTracker struct {
|
|
// atomic time of last success
|
|
lastSuccess int64
|
|
|
|
// atomic time of last time a token was grabbed.
|
|
lastStarted int64
|
|
|
|
// Atomic status of disk.
|
|
status atomic.Int32
|
|
|
|
// Atomic number indicates if a disk is hung
|
|
waiting atomic.Int32
|
|
}
|
|
|
|
// newDiskHealthTracker creates a new disk health tracker.
|
|
func newDiskHealthTracker() *diskHealthTracker {
|
|
d := diskHealthTracker{
|
|
lastSuccess: time.Now().UnixNano(),
|
|
lastStarted: time.Now().UnixNano(),
|
|
}
|
|
d.status.Store(diskHealthOK)
|
|
return &d
|
|
}
|
|
|
|
// logSuccess will update the last successful operation time.
|
|
func (d *diskHealthTracker) logSuccess() {
|
|
atomic.StoreInt64(&d.lastSuccess, time.Now().UnixNano())
|
|
}
|
|
|
|
func (d *diskHealthTracker) isFaulty() bool {
|
|
return d.status.Load() == diskHealthFaulty
|
|
}
|
|
|
|
type (
|
|
healthDiskCtxKey struct{}
|
|
healthDiskCtxValue struct {
|
|
lastSuccess *int64
|
|
}
|
|
)
|
|
|
|
// logSuccess will update the last successful operation time.
|
|
func (h *healthDiskCtxValue) logSuccess() {
|
|
atomic.StoreInt64(h.lastSuccess, time.Now().UnixNano())
|
|
}
|
|
|
|
// noopDoneFunc is a no-op done func.
|
|
// Can be reused.
|
|
var noopDoneFunc = func(_ *error) {}
|
|
|
|
// TrackDiskHealth for this request.
|
|
// When a non-nil error is returned 'done' MUST be called
|
|
// with the status of the response, if it corresponds to disk health.
|
|
// If the pointer sent to done is non-nil AND the error
|
|
// is either nil or io.EOF the disk is considered good.
|
|
// So if unsure if the disk status is ok, return nil as a parameter to done.
|
|
// Shadowing will work as long as return error is named: https://go.dev/play/p/sauq86SsTN2
|
|
func (p *xlStorageDiskIDCheck) TrackDiskHealth(ctx context.Context, s storageMetric, paths ...string) (c context.Context, done func(*error), err error) {
|
|
done = noopDoneFunc
|
|
if contextCanceled(ctx) {
|
|
return ctx, done, ctx.Err()
|
|
}
|
|
|
|
if p.health.status.Load() != diskHealthOK {
|
|
return ctx, done, errFaultyDisk
|
|
}
|
|
|
|
// Verify if the disk is not stale
|
|
// - missing format.json (unformatted drive)
|
|
// - format.json is valid but invalid 'uuid'
|
|
if err = p.checkDiskStale(); err != nil {
|
|
return ctx, done, err
|
|
}
|
|
|
|
// Disallow recursive tracking to avoid deadlocks.
|
|
if ctx.Value(healthDiskCtxKey{}) != nil {
|
|
done = p.updateStorageMetrics(s, paths...)
|
|
return ctx, done, nil
|
|
}
|
|
|
|
if contextCanceled(ctx) {
|
|
return ctx, done, ctx.Err()
|
|
}
|
|
|
|
atomic.StoreInt64(&p.health.lastStarted, time.Now().UnixNano())
|
|
p.health.waiting.Add(1)
|
|
|
|
ctx = context.WithValue(ctx, healthDiskCtxKey{}, &healthDiskCtxValue{lastSuccess: &p.health.lastSuccess})
|
|
si := p.updateStorageMetrics(s, paths...)
|
|
var once sync.Once
|
|
return ctx, func(errp *error) {
|
|
p.health.waiting.Add(-1)
|
|
once.Do(func() {
|
|
if errp != nil {
|
|
err := *errp
|
|
if err == nil || errors.Is(err, io.EOF) {
|
|
p.health.logSuccess()
|
|
}
|
|
}
|
|
si(errp)
|
|
})
|
|
}, nil
|
|
}
|
|
|
|
var toWrite = []byte{2048: 42}
|
|
|
|
// monitorDiskStatus should be called once when a drive has been marked offline.
|
|
// Once the disk has been deemed ok, it will return to online status.
|
|
func (p *xlStorageDiskIDCheck) monitorDiskStatus(spent time.Duration, fn string) {
|
|
t := time.NewTicker(5 * time.Second)
|
|
defer t.Stop()
|
|
|
|
for range t.C {
|
|
if contextCanceled(p.diskCtx) {
|
|
return
|
|
}
|
|
|
|
err := p.storage.WriteAll(context.Background(), minioMetaTmpBucket, fn, toWrite)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
|
|
b, err := p.storage.ReadAll(context.Background(), minioMetaTmpBucket, fn)
|
|
if err != nil || len(b) != len(toWrite) {
|
|
continue
|
|
}
|
|
|
|
err = p.storage.Delete(context.Background(), minioMetaTmpBucket, fn, DeleteOptions{
|
|
Recursive: false,
|
|
Immediate: false,
|
|
})
|
|
|
|
if err == nil {
|
|
logger.Event(context.Background(), "node(%s): Read/Write/Delete successful, bringing drive %s online", globalLocalNodeName, p.storage.String())
|
|
p.health.status.Store(diskHealthOK)
|
|
p.health.waiting.Add(-1)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// monitorDiskStatus should be called once when a drive has been marked offline.
|
|
// Once the disk has been deemed ok, it will return to online status.
|
|
func (p *xlStorageDiskIDCheck) monitorDiskWritable(ctx context.Context) {
|
|
var (
|
|
// We check every 15 seconds if the disk is writable and we can read back.
|
|
checkEvery = 15 * time.Second
|
|
|
|
// If the disk has completed an operation successfully within last 5 seconds, don't check it.
|
|
skipIfSuccessBefore = 5 * time.Second
|
|
)
|
|
|
|
// if disk max timeout is smaller than checkEvery window
|
|
// reduce checks by a second.
|
|
if globalDriveConfig.GetMaxTimeout() <= checkEvery {
|
|
checkEvery = globalDriveConfig.GetMaxTimeout() - time.Second
|
|
if checkEvery <= 0 {
|
|
checkEvery = globalDriveConfig.GetMaxTimeout()
|
|
}
|
|
}
|
|
|
|
// if disk max timeout is smaller than skipIfSuccessBefore window
|
|
// reduce the skipIfSuccessBefore by a second.
|
|
if globalDriveConfig.GetMaxTimeout() <= skipIfSuccessBefore {
|
|
skipIfSuccessBefore = globalDriveConfig.GetMaxTimeout() - time.Second
|
|
if skipIfSuccessBefore <= 0 {
|
|
skipIfSuccessBefore = globalDriveConfig.GetMaxTimeout()
|
|
}
|
|
}
|
|
|
|
t := time.NewTicker(checkEvery)
|
|
defer t.Stop()
|
|
fn := mustGetUUID()
|
|
|
|
rng := rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
|
|
monitor := func() bool {
|
|
if contextCanceled(ctx) {
|
|
return false
|
|
}
|
|
|
|
if p.health.status.Load() != diskHealthOK {
|
|
return true
|
|
}
|
|
|
|
if time.Since(time.Unix(0, atomic.LoadInt64(&p.health.lastSuccess))) < skipIfSuccessBefore {
|
|
// We recently saw a success - no need to check.
|
|
return true
|
|
}
|
|
|
|
goOffline := func(err error, spent time.Duration) {
|
|
if p.health.status.CompareAndSwap(diskHealthOK, diskHealthFaulty) {
|
|
storageLogAlwaysIf(ctx, fmt.Errorf("node(%s): taking drive %s offline: %v", globalLocalNodeName, p.storage.String(), err))
|
|
p.health.waiting.Add(1)
|
|
go p.monitorDiskStatus(spent, fn)
|
|
}
|
|
}
|
|
|
|
// Offset checks a bit.
|
|
time.Sleep(time.Duration(rng.Int63n(int64(1 * time.Second))))
|
|
|
|
dctx, dcancel := context.WithCancel(ctx)
|
|
started := time.Now()
|
|
go func() {
|
|
timeout := time.NewTimer(globalDriveConfig.GetMaxTimeout())
|
|
select {
|
|
case <-dctx.Done():
|
|
if !timeout.Stop() {
|
|
<-timeout.C
|
|
}
|
|
case <-timeout.C:
|
|
spent := time.Since(started)
|
|
goOffline(fmt.Errorf("unable to write+read for %v", spent.Round(time.Millisecond)), spent)
|
|
}
|
|
}()
|
|
|
|
func() {
|
|
defer dcancel()
|
|
|
|
err := p.storage.WriteAll(ctx, minioMetaTmpBucket, fn, toWrite)
|
|
if err != nil {
|
|
if osErrToFileErr(err) == errFaultyDisk {
|
|
goOffline(fmt.Errorf("unable to write: %w", err), 0)
|
|
}
|
|
return
|
|
}
|
|
b, err := p.storage.ReadAll(context.Background(), minioMetaTmpBucket, fn)
|
|
if err != nil || len(b) != len(toWrite) {
|
|
if osErrToFileErr(err) == errFaultyDisk {
|
|
goOffline(fmt.Errorf("unable to read: %w", err), 0)
|
|
}
|
|
return
|
|
}
|
|
}()
|
|
|
|
// Continue to monitor
|
|
return true
|
|
}
|
|
|
|
for {
|
|
select {
|
|
case <-ctx.Done():
|
|
return
|
|
case <-t.C:
|
|
if !monitor() {
|
|
return
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// checkID will check if the disk ID matches the provided ID.
|
|
func (p *xlStorageDiskIDCheck) checkID(wantID string) (err error) {
|
|
if wantID == "" {
|
|
return nil
|
|
}
|
|
id, err := p.storage.GetDiskID()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if id != wantID {
|
|
return fmt.Errorf("disk ID %s does not match. disk reports %s", wantID, id)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// diskHealthCheckOK will check if the provided error is nil
|
|
// and update disk status if good.
|
|
// For convenience a bool is returned to indicate any error state
|
|
// that is not io.EOF.
|
|
func diskHealthCheckOK(ctx context.Context, err error) bool {
|
|
// Check if context has a disk health check.
|
|
tracker, ok := ctx.Value(healthDiskCtxKey{}).(*healthDiskCtxValue)
|
|
if !ok {
|
|
// No tracker, return
|
|
return err == nil || errors.Is(err, io.EOF)
|
|
}
|
|
if err == nil || errors.Is(err, io.EOF) {
|
|
tracker.logSuccess()
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
// diskHealthWrapper provides either a io.Reader or io.Writer
|
|
// that updates status of the provided tracker.
|
|
// Use through diskHealthReader or diskHealthWriter.
|
|
type diskHealthWrapper struct {
|
|
tracker *healthDiskCtxValue
|
|
r io.Reader
|
|
w io.Writer
|
|
}
|
|
|
|
func (d *diskHealthWrapper) Read(p []byte) (int, error) {
|
|
if d.r == nil {
|
|
return 0, fmt.Errorf("diskHealthWrapper: Read with no reader")
|
|
}
|
|
n, err := d.r.Read(p)
|
|
if err == nil || err == io.EOF && n > 0 {
|
|
d.tracker.logSuccess()
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
func (d *diskHealthWrapper) Write(p []byte) (int, error) {
|
|
if d.w == nil {
|
|
return 0, fmt.Errorf("diskHealthWrapper: Write with no writer")
|
|
}
|
|
n, err := d.w.Write(p)
|
|
if err == nil && n == len(p) {
|
|
d.tracker.logSuccess()
|
|
}
|
|
return n, err
|
|
}
|
|
|
|
// diskHealthReader provides a wrapper that will update disk health on
|
|
// ctx, on every successful read.
|
|
// This should only be used directly at the os/syscall level,
|
|
// otherwise buffered operations may return false health checks.
|
|
func diskHealthReader(ctx context.Context, r io.Reader) io.Reader {
|
|
// Check if context has a disk health check.
|
|
tracker, ok := ctx.Value(healthDiskCtxKey{}).(*healthDiskCtxValue)
|
|
if !ok {
|
|
// No need to wrap
|
|
return r
|
|
}
|
|
return &diskHealthWrapper{r: r, tracker: tracker}
|
|
}
|
|
|
|
// diskHealthWriter provides a wrapper that will update disk health on
|
|
// ctx, on every successful write.
|
|
// This should only be used directly at the os/syscall level,
|
|
// otherwise buffered operations may return false health checks.
|
|
func diskHealthWriter(ctx context.Context, w io.Writer) io.Writer {
|
|
// Check if context has a disk health check.
|
|
tracker, ok := ctx.Value(healthDiskCtxKey{}).(*healthDiskCtxValue)
|
|
if !ok {
|
|
// No need to wrap
|
|
return w
|
|
}
|
|
return &diskHealthWrapper{w: w, tracker: tracker}
|
|
}
|