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41688a936b
CopyObject was not correctly figuring out the correct destination object location and would end up creating duplicate objects on two different zones, reproduced by doing encryption based key rotation.
1709 lines
47 KiB
Go
1709 lines
47 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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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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"io"
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"math/rand"
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"net/http"
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"strings"
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"sync"
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"time"
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"github.com/minio/minio-go/v6/pkg/tags"
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"github.com/minio/minio/cmd/config/storageclass"
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xhttp "github.com/minio/minio/cmd/http"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/madmin"
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"github.com/minio/minio/pkg/sync/errgroup"
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)
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type xlZones struct {
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GatewayUnsupported
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zones []*xlSets
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}
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func (z *xlZones) SingleZone() bool {
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return len(z.zones) == 1
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}
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// Initialize new zone of erasure sets.
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func newXLZones(ctx context.Context, endpointZones EndpointZones) (ObjectLayer, error) {
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var (
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deploymentID string
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err error
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formats = make([]*formatXLV3, len(endpointZones))
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storageDisks = make([][]StorageAPI, len(endpointZones))
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z = &xlZones{zones: make([]*xlSets, len(endpointZones))}
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)
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var localDrives []string
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local := endpointZones.FirstLocal()
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for i, ep := range endpointZones {
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for _, endpoint := range ep.Endpoints {
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if endpoint.IsLocal {
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localDrives = append(localDrives, endpoint.Path)
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}
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}
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storageDisks[i], formats[i], err = waitForFormatXL(local, ep.Endpoints, i+1,
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ep.SetCount, ep.DrivesPerSet, deploymentID)
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if err != nil {
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return nil, err
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}
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if deploymentID == "" {
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deploymentID = formats[i].ID
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}
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z.zones[i], err = newXLSets(ctx, ep.Endpoints, storageDisks[i], formats[i])
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if err != nil {
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return nil, err
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}
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}
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go intDataUpdateTracker.start(GlobalContext, localDrives...)
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return z, nil
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}
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func (z *xlZones) NewNSLock(ctx context.Context, bucket string, objects ...string) RWLocker {
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return z.zones[0].NewNSLock(ctx, bucket, objects...)
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}
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type zonesAvailableSpace []zoneAvailableSpace
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type zoneAvailableSpace struct {
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Index int
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Available uint64
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}
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// TotalAvailable - total available space
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func (p zonesAvailableSpace) TotalAvailable() uint64 {
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total := uint64(0)
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for _, z := range p {
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total += z.Available
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}
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return total
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}
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func (z *xlZones) getAvailableZoneIdx(ctx context.Context) int {
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zones := z.getZonesAvailableSpace(ctx)
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total := zones.TotalAvailable()
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if total == 0 {
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// Houston, we have a problem, maybe panic??
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return zones[0].Index
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}
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// choose when we reach this many
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choose := rand.Uint64() % total
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atTotal := uint64(0)
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for _, zone := range zones {
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atTotal += zone.Available
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if atTotal > choose && zone.Available > 0 {
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return zone.Index
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}
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}
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// Should not happen, but print values just in case.
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panic(fmt.Errorf("reached end of zones (total: %v, atTotal: %v, choose: %v)", total, atTotal, choose))
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}
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func (z *xlZones) getZonesAvailableSpace(ctx context.Context) zonesAvailableSpace {
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var zones = make(zonesAvailableSpace, len(z.zones))
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storageInfos := make([]StorageInfo, len(z.zones))
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g := errgroup.WithNErrs(len(z.zones))
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for index := range z.zones {
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index := index
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g.Go(func() error {
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storageInfos[index] = z.zones[index].StorageUsageInfo(ctx)
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return nil
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}, index)
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}
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// Wait for the go routines.
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g.Wait()
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for i, zinfo := range storageInfos {
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var available uint64
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for _, davailable := range zinfo.Available {
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available += davailable
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}
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zones[i] = zoneAvailableSpace{
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Index: i,
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Available: available,
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}
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}
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return zones
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}
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func (z *xlZones) Shutdown(ctx context.Context) error {
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if z.SingleZone() {
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return z.zones[0].Shutdown(ctx)
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}
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g := errgroup.WithNErrs(len(z.zones))
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for index := range z.zones {
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index := index
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g.Go(func() error {
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return z.zones[index].Shutdown(ctx)
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}, index)
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}
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for _, err := range g.Wait() {
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if err != nil {
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logger.LogIf(ctx, err)
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}
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// let's the rest shutdown
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}
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return nil
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}
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func (z *xlZones) StorageInfo(ctx context.Context, local bool) (StorageInfo, []error) {
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if z.SingleZone() {
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return z.zones[0].StorageInfo(ctx, local)
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}
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var storageInfo StorageInfo
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storageInfos := make([]StorageInfo, len(z.zones))
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storageInfosErrs := make([][]error, len(z.zones))
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g := errgroup.WithNErrs(len(z.zones))
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for index := range z.zones {
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index := index
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g.Go(func() error {
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storageInfos[index], storageInfosErrs[index] = z.zones[index].StorageInfo(ctx, local)
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return nil
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}, index)
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}
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// Wait for the go routines.
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g.Wait()
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for _, lstorageInfo := range storageInfos {
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storageInfo.Used = append(storageInfo.Used, lstorageInfo.Used...)
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storageInfo.Total = append(storageInfo.Total, lstorageInfo.Total...)
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storageInfo.Available = append(storageInfo.Available, lstorageInfo.Available...)
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storageInfo.MountPaths = append(storageInfo.MountPaths, lstorageInfo.MountPaths...)
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storageInfo.Backend.OnlineDisks = storageInfo.Backend.OnlineDisks.Merge(lstorageInfo.Backend.OnlineDisks)
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storageInfo.Backend.OfflineDisks = storageInfo.Backend.OfflineDisks.Merge(lstorageInfo.Backend.OfflineDisks)
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storageInfo.Backend.Sets = append(storageInfo.Backend.Sets, lstorageInfo.Backend.Sets...)
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}
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storageInfo.Backend.Type = storageInfos[0].Backend.Type
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storageInfo.Backend.StandardSCData = storageInfos[0].Backend.StandardSCData
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storageInfo.Backend.StandardSCParity = storageInfos[0].Backend.StandardSCParity
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storageInfo.Backend.RRSCData = storageInfos[0].Backend.RRSCData
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storageInfo.Backend.RRSCParity = storageInfos[0].Backend.RRSCParity
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var errs []error
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for i := range z.zones {
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errs = append(errs, storageInfosErrs[i]...)
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}
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return storageInfo, errs
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}
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func (z *xlZones) CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error {
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ctx, cancel := context.WithCancel(ctx)
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defer cancel()
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var wg sync.WaitGroup
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var mu sync.Mutex
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var results []dataUsageCache
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var firstErr error
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var knownBuckets = make(map[string]struct{}) // used to deduplicate buckets.
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var allBuckets []BucketInfo
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// Collect for each set in zones.
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for _, z := range z.zones {
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for _, xlObj := range z.sets {
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// Add new buckets.
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buckets, err := xlObj.ListBuckets(ctx)
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if err != nil {
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return err
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}
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for _, b := range buckets {
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if _, ok := knownBuckets[b.Name]; ok {
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continue
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}
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allBuckets = append(allBuckets, b)
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knownBuckets[b.Name] = struct{}{}
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}
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wg.Add(1)
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results = append(results, dataUsageCache{})
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go func(i int, xl *xlObjects) {
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updates := make(chan dataUsageCache, 1)
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defer close(updates)
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// Start update collector.
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go func() {
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defer wg.Done()
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for info := range updates {
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mu.Lock()
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results[i] = info
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mu.Unlock()
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}
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}()
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// Start crawler. Blocks until done.
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err := xl.crawlAndGetDataUsage(ctx, buckets, bf, updates)
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if err != nil {
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mu.Lock()
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if firstErr == nil {
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firstErr = err
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}
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// Cancel remaining...
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cancel()
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mu.Unlock()
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return
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}
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}(len(results)-1, xlObj)
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}
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}
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updateCloser := make(chan chan struct{})
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go func() {
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updateTicker := time.NewTicker(30 * time.Second)
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defer updateTicker.Stop()
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var lastUpdate time.Time
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update := func() {
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mu.Lock()
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defer mu.Unlock()
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// We need to merge since we will get the same buckets from each zone.
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// Therefore to get the exact bucket sizes we must merge before we can convert.
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allMerged := dataUsageCache{Info: dataUsageCacheInfo{Name: dataUsageRoot}}
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for _, info := range results {
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if info.Info.LastUpdate.IsZero() {
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// Not filled yet.
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return
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}
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allMerged.merge(info)
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}
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if allMerged.root() != nil && allMerged.Info.LastUpdate.After(lastUpdate) {
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updates <- allMerged.dui(allMerged.Info.Name, allBuckets)
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lastUpdate = allMerged.Info.LastUpdate
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}
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}
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for {
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select {
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case <-ctx.Done():
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return
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case v := <-updateCloser:
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update()
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close(v)
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return
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case <-updateTicker.C:
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update()
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}
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}
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}()
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wg.Wait()
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ch := make(chan struct{})
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updateCloser <- ch
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<-ch
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return firstErr
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}
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// MakeBucketWithLocation - creates a new bucket across all zones simultaneously
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// even if one of the sets fail to create buckets, we proceed all the successful
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// operations.
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func (z *xlZones) MakeBucketWithLocation(ctx context.Context, bucket, location string, lockEnabled bool) error {
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if z.SingleZone() {
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if err := z.zones[0].MakeBucketWithLocation(ctx, bucket, location, lockEnabled); err != nil {
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return err
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}
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// If it doesn't exist we get a new, so ignore errors
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meta := newBucketMetadata(bucket)
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if lockEnabled {
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meta.ObjectLockConfigXML = enabledBucketObjectLockConfig
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}
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if err := meta.Save(ctx, z); err != nil {
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return toObjectErr(err, bucket)
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}
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globalBucketMetadataSys.Set(bucket, meta)
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return nil
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}
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g := errgroup.WithNErrs(len(z.zones))
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// Create buckets in parallel across all sets.
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for index := range z.zones {
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index := index
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g.Go(func() error {
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return z.zones[index].MakeBucketWithLocation(ctx, bucket, location, lockEnabled)
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}, index)
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}
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errs := g.Wait()
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// Return the first encountered error
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for _, err := range errs {
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if err != nil {
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return err
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}
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}
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// If it doesn't exist we get a new, so ignore errors
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meta := newBucketMetadata(bucket)
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if lockEnabled {
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meta.ObjectLockConfigXML = enabledBucketObjectLockConfig
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}
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if err := meta.Save(ctx, z); err != nil {
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return toObjectErr(err, bucket)
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}
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globalBucketMetadataSys.Set(bucket, meta)
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// Success.
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return nil
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}
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func (z *xlZones) GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, lockType LockType, opts ObjectOptions) (gr *GetObjectReader, err error) {
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var nsUnlocker = func() {}
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// Acquire lock
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if lockType != noLock {
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lock := z.NewNSLock(ctx, bucket, object)
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switch lockType {
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case writeLock:
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if err = lock.GetLock(globalObjectTimeout); err != nil {
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return nil, err
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}
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nsUnlocker = lock.Unlock
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case readLock:
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if err = lock.GetRLock(globalObjectTimeout); err != nil {
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return nil, err
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}
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nsUnlocker = lock.RUnlock
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}
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}
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for _, zone := range z.zones {
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gr, err := zone.GetObjectNInfo(ctx, bucket, object, rs, h, lockType, opts)
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if err != nil {
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if isErrObjectNotFound(err) {
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continue
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}
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nsUnlocker()
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return nil, err
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}
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gr.cleanUpFns = append(gr.cleanUpFns, nsUnlocker)
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return gr, nil
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}
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nsUnlocker()
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return nil, ObjectNotFound{Bucket: bucket, Object: object}
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}
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func (z *xlZones) GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string, opts ObjectOptions) error {
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// Lock the object before reading.
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lk := z.NewNSLock(ctx, bucket, object)
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if err := lk.GetRLock(globalObjectTimeout); err != nil {
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return err
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}
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defer lk.RUnlock()
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if z.SingleZone() {
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return z.zones[0].GetObject(ctx, bucket, object, startOffset, length, writer, etag, opts)
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}
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for _, zone := range z.zones {
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if err := zone.GetObject(ctx, bucket, object, startOffset, length, writer, etag, opts); err != nil {
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if isErrObjectNotFound(err) {
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continue
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}
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return err
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}
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return nil
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}
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return ObjectNotFound{Bucket: bucket, Object: object}
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}
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func (z *xlZones) GetObjectInfo(ctx context.Context, bucket, object string, opts ObjectOptions) (ObjectInfo, error) {
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// Lock the object before reading.
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lk := z.NewNSLock(ctx, bucket, object)
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if err := lk.GetRLock(globalObjectTimeout); err != nil {
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return ObjectInfo{}, err
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}
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defer lk.RUnlock()
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if z.SingleZone() {
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return z.zones[0].GetObjectInfo(ctx, bucket, object, opts)
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}
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for _, zone := range z.zones {
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objInfo, err := zone.GetObjectInfo(ctx, bucket, object, opts)
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if err != nil {
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if isErrObjectNotFound(err) {
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continue
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}
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return objInfo, err
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}
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return objInfo, nil
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}
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return ObjectInfo{}, ObjectNotFound{Bucket: bucket, Object: object}
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}
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// PutObject - writes an object to least used erasure zone.
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func (z *xlZones) PutObject(ctx context.Context, bucket string, object string, data *PutObjReader, opts ObjectOptions) (ObjectInfo, error) {
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// Lock the object.
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lk := z.NewNSLock(ctx, bucket, object)
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if err := lk.GetLock(globalObjectTimeout); err != nil {
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return ObjectInfo{}, err
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}
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defer lk.Unlock()
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if z.SingleZone() {
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return z.zones[0].PutObject(ctx, bucket, object, data, opts)
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}
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for _, zone := range z.zones {
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objInfo, err := zone.GetObjectInfo(ctx, bucket, object, opts)
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if err != nil {
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if isErrObjectNotFound(err) {
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continue
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}
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return objInfo, err
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}
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// Overwrite request upload to right zone.
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return zone.PutObject(ctx, bucket, object, data, opts)
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}
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// Object not found pick the least used and upload to this zone.
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return z.zones[z.getAvailableZoneIdx(ctx)].PutObject(ctx, bucket, object, data, opts)
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}
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func (z *xlZones) DeleteObject(ctx context.Context, bucket string, object string) error {
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// Acquire a write lock before deleting the object.
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lk := z.NewNSLock(ctx, bucket, object)
|
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if err := lk.GetLock(globalOperationTimeout); err != nil {
|
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return err
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}
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defer lk.Unlock()
|
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|
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if z.SingleZone() {
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return z.zones[0].DeleteObject(ctx, bucket, object)
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}
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for _, zone := range z.zones {
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err := zone.DeleteObject(ctx, bucket, object)
|
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if err != nil && !isErrObjectNotFound(err) {
|
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return err
|
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}
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}
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return nil
|
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}
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|
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func (z *xlZones) DeleteObjects(ctx context.Context, bucket string, objects []string) ([]error, error) {
|
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derrs := make([]error, len(objects))
|
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for i := range derrs {
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derrs[i] = checkDelObjArgs(ctx, bucket, objects[i])
|
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}
|
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|
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// Acquire a bulk write lock across 'objects'
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multiDeleteLock := z.NewNSLock(ctx, bucket, objects...)
|
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if err := multiDeleteLock.GetLock(globalOperationTimeout); err != nil {
|
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return nil, err
|
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}
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defer multiDeleteLock.Unlock()
|
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|
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for _, zone := range z.zones {
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errs, err := zone.DeleteObjects(ctx, bucket, objects)
|
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if err != nil {
|
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return nil, err
|
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}
|
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for i, derr := range errs {
|
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if derrs[i] == nil {
|
|
if derr != nil && !isErrObjectNotFound(derr) {
|
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derrs[i] = derr
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}
|
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}
|
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}
|
|
}
|
|
return derrs, nil
|
|
}
|
|
|
|
func (z *xlZones) CopyObject(ctx context.Context, srcBucket, srcObject, dstBucket, dstObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (objInfo ObjectInfo, err error) {
|
|
// Check if this request is only metadata update.
|
|
cpSrcDstSame := isStringEqual(pathJoin(srcBucket, srcObject), pathJoin(dstBucket, dstObject))
|
|
if !cpSrcDstSame {
|
|
lk := z.NewNSLock(ctx, dstBucket, dstObject)
|
|
if err := lk.GetLock(globalObjectTimeout); err != nil {
|
|
return objInfo, err
|
|
}
|
|
defer lk.Unlock()
|
|
}
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].CopyObject(ctx, srcBucket, srcObject, dstBucket, dstObject, srcInfo, srcOpts, dstOpts)
|
|
}
|
|
|
|
zoneIndex := -1
|
|
for i, zone := range z.zones {
|
|
objInfo, err := zone.GetObjectInfo(ctx, dstBucket, dstObject, srcOpts)
|
|
if err != nil {
|
|
if isErrObjectNotFound(err) {
|
|
continue
|
|
}
|
|
return objInfo, err
|
|
}
|
|
zoneIndex = i
|
|
break
|
|
}
|
|
|
|
putOpts := ObjectOptions{ServerSideEncryption: dstOpts.ServerSideEncryption, UserDefined: srcInfo.UserDefined}
|
|
if zoneIndex >= 0 {
|
|
if cpSrcDstSame && srcInfo.metadataOnly {
|
|
return z.zones[zoneIndex].CopyObject(ctx, srcBucket, srcObject, dstBucket, dstObject, srcInfo, srcOpts, dstOpts)
|
|
}
|
|
return z.zones[zoneIndex].PutObject(ctx, dstBucket, dstObject, srcInfo.PutObjReader, putOpts)
|
|
}
|
|
return z.zones[z.getAvailableZoneIdx(ctx)].PutObject(ctx, dstBucket, dstObject, srcInfo.PutObjReader, putOpts)
|
|
}
|
|
|
|
func (z *xlZones) ListObjectsV2(ctx context.Context, bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (ListObjectsV2Info, error) {
|
|
if z.SingleZone() {
|
|
return z.zones[0].ListObjectsV2(ctx, bucket, prefix, continuationToken, delimiter, maxKeys, fetchOwner, startAfter)
|
|
}
|
|
marker := continuationToken
|
|
if marker == "" {
|
|
marker = startAfter
|
|
}
|
|
|
|
loi, err := z.ListObjects(ctx, bucket, prefix, marker, delimiter, maxKeys)
|
|
if err != nil {
|
|
return ListObjectsV2Info{}, err
|
|
}
|
|
|
|
listObjectsV2Info := ListObjectsV2Info{
|
|
IsTruncated: loi.IsTruncated,
|
|
ContinuationToken: continuationToken,
|
|
NextContinuationToken: loi.NextMarker,
|
|
Objects: loi.Objects,
|
|
Prefixes: loi.Prefixes,
|
|
}
|
|
return listObjectsV2Info, err
|
|
}
|
|
|
|
func (z *xlZones) listObjectsNonSlash(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (loi ListObjectsInfo, err error) {
|
|
|
|
var zonesEntryChs [][]FileInfoCh
|
|
|
|
endWalkCh := make(chan struct{})
|
|
defer close(endWalkCh)
|
|
|
|
const ndisks = 3
|
|
for _, zone := range z.zones {
|
|
zonesEntryChs = append(zonesEntryChs,
|
|
zone.startMergeWalksN(ctx, bucket, prefix, "", true, endWalkCh, ndisks))
|
|
}
|
|
|
|
var objInfos []ObjectInfo
|
|
var eof bool
|
|
var prevPrefix string
|
|
|
|
var zonesEntriesInfos [][]FileInfo
|
|
var zonesEntriesValid [][]bool
|
|
for _, entryChs := range zonesEntryChs {
|
|
zonesEntriesInfos = append(zonesEntriesInfos, make([]FileInfo, len(entryChs)))
|
|
zonesEntriesValid = append(zonesEntriesValid, make([]bool, len(entryChs)))
|
|
}
|
|
|
|
for {
|
|
if len(objInfos) == maxKeys {
|
|
break
|
|
}
|
|
|
|
result, quorumCount, _, ok := leastEntryZone(zonesEntryChs, zonesEntriesInfos, zonesEntriesValid)
|
|
if !ok {
|
|
eof = true
|
|
break
|
|
}
|
|
|
|
if quorumCount < ndisks-1 {
|
|
// Skip entries which are not found on upto ndisks.
|
|
continue
|
|
}
|
|
|
|
var objInfo ObjectInfo
|
|
|
|
index := strings.Index(strings.TrimPrefix(result.Name, prefix), delimiter)
|
|
if index == -1 {
|
|
objInfo = ObjectInfo{
|
|
IsDir: false,
|
|
Bucket: bucket,
|
|
Name: result.Name,
|
|
ModTime: result.ModTime,
|
|
Size: result.Size,
|
|
ContentType: result.Metadata["content-type"],
|
|
ContentEncoding: result.Metadata["content-encoding"],
|
|
}
|
|
|
|
// Extract etag from metadata.
|
|
objInfo.ETag = extractETag(result.Metadata)
|
|
|
|
// All the parts per object.
|
|
objInfo.Parts = result.Parts
|
|
|
|
// etag/md5Sum has already been extracted. We need to
|
|
// remove to avoid it from appearing as part of
|
|
// response headers. e.g, X-Minio-* or X-Amz-*.
|
|
objInfo.UserDefined = cleanMetadata(result.Metadata)
|
|
|
|
// Update storage class
|
|
if sc, ok := result.Metadata[xhttp.AmzStorageClass]; ok {
|
|
objInfo.StorageClass = sc
|
|
} else {
|
|
objInfo.StorageClass = globalMinioDefaultStorageClass
|
|
}
|
|
} else {
|
|
index = len(prefix) + index + len(delimiter)
|
|
currPrefix := result.Name[:index]
|
|
if currPrefix == prevPrefix {
|
|
continue
|
|
}
|
|
prevPrefix = currPrefix
|
|
|
|
objInfo = ObjectInfo{
|
|
Bucket: bucket,
|
|
Name: currPrefix,
|
|
IsDir: true,
|
|
}
|
|
}
|
|
|
|
if objInfo.Name <= marker {
|
|
continue
|
|
}
|
|
|
|
objInfos = append(objInfos, objInfo)
|
|
}
|
|
|
|
result := ListObjectsInfo{}
|
|
for _, objInfo := range objInfos {
|
|
if objInfo.IsDir {
|
|
result.Prefixes = append(result.Prefixes, objInfo.Name)
|
|
continue
|
|
}
|
|
result.Objects = append(result.Objects, objInfo)
|
|
}
|
|
|
|
if !eof {
|
|
result.IsTruncated = true
|
|
if len(objInfos) > 0 {
|
|
result.NextMarker = objInfos[len(objInfos)-1].Name
|
|
}
|
|
}
|
|
|
|
return result, nil
|
|
}
|
|
|
|
func (z *xlZones) listObjectsSplunk(ctx context.Context, bucket, prefix, marker string, maxKeys int) (loi ListObjectsInfo, err error) {
|
|
if strings.Contains(prefix, guidSplunk) {
|
|
logger.LogIf(ctx, NotImplemented{})
|
|
return loi, NotImplemented{}
|
|
}
|
|
|
|
recursive := true
|
|
|
|
var zonesEntryChs [][]FileInfoCh
|
|
var zonesEndWalkCh []chan struct{}
|
|
|
|
const ndisks = 3
|
|
for _, zone := range z.zones {
|
|
entryChs, endWalkCh := zone.poolSplunk.Release(listParams{bucket, recursive, marker, prefix})
|
|
if entryChs == nil {
|
|
endWalkCh = make(chan struct{})
|
|
entryChs = zone.startSplunkMergeWalksN(ctx, bucket, prefix, marker, endWalkCh, ndisks)
|
|
}
|
|
zonesEntryChs = append(zonesEntryChs, entryChs)
|
|
zonesEndWalkCh = append(zonesEndWalkCh, endWalkCh)
|
|
}
|
|
|
|
entries := mergeZonesEntriesCh(zonesEntryChs, maxKeys, ndisks)
|
|
if len(entries.Files) == 0 {
|
|
return loi, nil
|
|
}
|
|
|
|
loi.IsTruncated = entries.IsTruncated
|
|
if loi.IsTruncated {
|
|
loi.NextMarker = entries.Files[len(entries.Files)-1].Name
|
|
}
|
|
|
|
for _, entry := range entries.Files {
|
|
objInfo := entry.ToObjectInfo()
|
|
splits := strings.Split(objInfo.Name, guidSplunk)
|
|
if len(splits) == 0 {
|
|
loi.Objects = append(loi.Objects, objInfo)
|
|
continue
|
|
}
|
|
|
|
loi.Prefixes = append(loi.Prefixes, splits[0]+guidSplunk)
|
|
}
|
|
|
|
if loi.IsTruncated {
|
|
for i, zone := range z.zones {
|
|
zone.poolSplunk.Set(listParams{bucket, recursive, loi.NextMarker, prefix}, zonesEntryChs[i],
|
|
zonesEndWalkCh[i])
|
|
}
|
|
}
|
|
return loi, nil
|
|
}
|
|
|
|
func (z *xlZones) listObjects(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, error) {
|
|
loi := ListObjectsInfo{}
|
|
|
|
if err := checkListObjsArgs(ctx, bucket, prefix, marker, z); err != nil {
|
|
return loi, err
|
|
}
|
|
|
|
// Marker is set validate pre-condition.
|
|
if marker != "" {
|
|
// Marker not common with prefix is not implemented. Send an empty response
|
|
if !HasPrefix(marker, prefix) {
|
|
return loi, nil
|
|
}
|
|
}
|
|
|
|
// With max keys of zero we have reached eof, return right here.
|
|
if maxKeys == 0 {
|
|
return loi, nil
|
|
}
|
|
|
|
// For delimiter and prefix as '/' we do not list anything at all
|
|
// since according to s3 spec we stop at the 'delimiter'
|
|
// along // with the prefix. On a flat namespace with 'prefix'
|
|
// as '/' we don't have any entries, since all the keys are
|
|
// of form 'keyName/...'
|
|
if delimiter == SlashSeparator && prefix == SlashSeparator {
|
|
return loi, nil
|
|
}
|
|
|
|
// Over flowing count - reset to maxObjectList.
|
|
if maxKeys < 0 || maxKeys > maxObjectList {
|
|
maxKeys = maxObjectList
|
|
}
|
|
|
|
if delimiter != SlashSeparator && delimiter != "" {
|
|
if delimiter == guidSplunk {
|
|
return z.listObjectsSplunk(ctx, bucket, prefix, marker, maxKeys)
|
|
}
|
|
return z.listObjectsNonSlash(ctx, bucket, prefix, marker, delimiter, maxKeys)
|
|
}
|
|
|
|
// Default is recursive, if delimiter is set then list non recursive.
|
|
recursive := true
|
|
if delimiter == SlashSeparator {
|
|
recursive = false
|
|
}
|
|
|
|
var zonesEntryChs [][]FileInfoCh
|
|
var zonesEndWalkCh []chan struct{}
|
|
|
|
const ndisks = 3
|
|
for _, zone := range z.zones {
|
|
entryChs, endWalkCh := zone.pool.Release(listParams{bucket, recursive, marker, prefix})
|
|
if entryChs == nil {
|
|
endWalkCh = make(chan struct{})
|
|
entryChs = zone.startMergeWalksN(ctx, bucket, prefix, marker, recursive, endWalkCh, ndisks)
|
|
}
|
|
zonesEntryChs = append(zonesEntryChs, entryChs)
|
|
zonesEndWalkCh = append(zonesEndWalkCh, endWalkCh)
|
|
}
|
|
|
|
entries := mergeZonesEntriesCh(zonesEntryChs, maxKeys, ndisks)
|
|
if len(entries.Files) == 0 {
|
|
return loi, nil
|
|
}
|
|
|
|
loi.IsTruncated = entries.IsTruncated
|
|
if loi.IsTruncated {
|
|
loi.NextMarker = entries.Files[len(entries.Files)-1].Name
|
|
}
|
|
|
|
for _, entry := range entries.Files {
|
|
objInfo := entry.ToObjectInfo()
|
|
if HasSuffix(objInfo.Name, SlashSeparator) && !recursive {
|
|
loi.Prefixes = append(loi.Prefixes, objInfo.Name)
|
|
continue
|
|
}
|
|
loi.Objects = append(loi.Objects, objInfo)
|
|
}
|
|
if loi.IsTruncated {
|
|
for i, zone := range z.zones {
|
|
zone.pool.Set(listParams{bucket, recursive, loi.NextMarker, prefix}, zonesEntryChs[i],
|
|
zonesEndWalkCh[i])
|
|
}
|
|
}
|
|
return loi, nil
|
|
}
|
|
|
|
// Calculate least entry across zones and across multiple FileInfo
|
|
// channels, returns the least common entry and the total number of times
|
|
// we found this entry. Additionally also returns a boolean
|
|
// to indicate if the caller needs to call this function
|
|
// again to list the next entry. It is callers responsibility
|
|
// if the caller wishes to list N entries to call leastEntry
|
|
// N times until this boolean is 'false'.
|
|
func leastEntryZone(zoneEntryChs [][]FileInfoCh, zoneEntries [][]FileInfo, zoneEntriesValid [][]bool) (FileInfo, int, int, bool) {
|
|
for i, entryChs := range zoneEntryChs {
|
|
for j := range entryChs {
|
|
zoneEntries[i][j], zoneEntriesValid[i][j] = entryChs[j].Pop()
|
|
}
|
|
}
|
|
|
|
var isTruncated = false
|
|
for _, entriesValid := range zoneEntriesValid {
|
|
for _, valid := range entriesValid {
|
|
if !valid {
|
|
continue
|
|
}
|
|
isTruncated = true
|
|
break
|
|
}
|
|
if isTruncated {
|
|
break
|
|
}
|
|
}
|
|
|
|
var lentry FileInfo
|
|
var found bool
|
|
var zoneIndex = -1
|
|
for i, entriesValid := range zoneEntriesValid {
|
|
for j, valid := range entriesValid {
|
|
if !valid {
|
|
continue
|
|
}
|
|
if !found {
|
|
lentry = zoneEntries[i][j]
|
|
found = true
|
|
zoneIndex = i
|
|
continue
|
|
}
|
|
if zoneEntries[i][j].Name < lentry.Name {
|
|
lentry = zoneEntries[i][j]
|
|
zoneIndex = i
|
|
}
|
|
}
|
|
}
|
|
|
|
// We haven't been able to find any least entry,
|
|
// this would mean that we don't have valid entry.
|
|
if !found {
|
|
return lentry, 0, zoneIndex, isTruncated
|
|
}
|
|
|
|
leastEntryCount := 0
|
|
for i, entriesValid := range zoneEntriesValid {
|
|
for j, valid := range entriesValid {
|
|
if !valid {
|
|
continue
|
|
}
|
|
|
|
// Entries are duplicated across disks,
|
|
// we should simply skip such entries.
|
|
if lentry.Name == zoneEntries[i][j].Name && lentry.ModTime.Equal(zoneEntries[i][j].ModTime) {
|
|
leastEntryCount++
|
|
continue
|
|
}
|
|
|
|
// Push all entries which are lexically higher
|
|
// and will be returned later in Pop()
|
|
zoneEntryChs[i][j].Push(zoneEntries[i][j])
|
|
}
|
|
}
|
|
|
|
return lentry, leastEntryCount, zoneIndex, isTruncated
|
|
}
|
|
|
|
// mergeZonesEntriesCh - merges FileInfo channel to entries upto maxKeys.
|
|
func mergeZonesEntriesCh(zonesEntryChs [][]FileInfoCh, maxKeys int, ndisks int) (entries FilesInfo) {
|
|
var i = 0
|
|
var zonesEntriesInfos [][]FileInfo
|
|
var zonesEntriesValid [][]bool
|
|
for _, entryChs := range zonesEntryChs {
|
|
zonesEntriesInfos = append(zonesEntriesInfos, make([]FileInfo, len(entryChs)))
|
|
zonesEntriesValid = append(zonesEntriesValid, make([]bool, len(entryChs)))
|
|
}
|
|
for {
|
|
fi, quorumCount, _, ok := leastEntryZone(zonesEntryChs, zonesEntriesInfos, zonesEntriesValid)
|
|
if !ok {
|
|
// We have reached EOF across all entryChs, break the loop.
|
|
break
|
|
}
|
|
|
|
if quorumCount < ndisks-1 {
|
|
// Skip entries which are not found on upto ndisks.
|
|
continue
|
|
}
|
|
|
|
entries.Files = append(entries.Files, fi)
|
|
i++
|
|
if i == maxKeys {
|
|
entries.IsTruncated = isTruncatedZones(zonesEntryChs, zonesEntriesInfos, zonesEntriesValid)
|
|
break
|
|
}
|
|
}
|
|
return entries
|
|
}
|
|
|
|
func isTruncatedZones(zoneEntryChs [][]FileInfoCh, zoneEntries [][]FileInfo, zoneEntriesValid [][]bool) bool {
|
|
for i, entryChs := range zoneEntryChs {
|
|
for j := range entryChs {
|
|
zoneEntries[i][j], zoneEntriesValid[i][j] = entryChs[j].Pop()
|
|
}
|
|
}
|
|
|
|
var isTruncated = false
|
|
for _, entriesValid := range zoneEntriesValid {
|
|
for _, valid := range entriesValid {
|
|
if !valid {
|
|
continue
|
|
}
|
|
isTruncated = true
|
|
break
|
|
}
|
|
if isTruncated {
|
|
break
|
|
}
|
|
}
|
|
for i, entryChs := range zoneEntryChs {
|
|
for j := range entryChs {
|
|
if zoneEntriesValid[i][j] {
|
|
zoneEntryChs[i][j].Push(zoneEntries[i][j])
|
|
}
|
|
}
|
|
}
|
|
return isTruncated
|
|
}
|
|
|
|
func (z *xlZones) ListObjects(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (ListObjectsInfo, error) {
|
|
if z.SingleZone() {
|
|
return z.zones[0].ListObjects(ctx, bucket, prefix, marker, delimiter, maxKeys)
|
|
}
|
|
|
|
return z.listObjects(ctx, bucket, prefix, marker, delimiter, maxKeys)
|
|
}
|
|
|
|
func (z *xlZones) ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (ListMultipartsInfo, error) {
|
|
if err := checkListMultipartArgs(ctx, bucket, prefix, keyMarker, uploadIDMarker, delimiter, z); err != nil {
|
|
return ListMultipartsInfo{}, err
|
|
}
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].ListMultipartUploads(ctx, bucket, prefix, keyMarker, uploadIDMarker, delimiter, maxUploads)
|
|
}
|
|
|
|
var zoneResult = ListMultipartsInfo{}
|
|
zoneResult.MaxUploads = maxUploads
|
|
zoneResult.KeyMarker = keyMarker
|
|
zoneResult.Prefix = prefix
|
|
zoneResult.Delimiter = delimiter
|
|
for _, zone := range z.zones {
|
|
result, err := zone.ListMultipartUploads(ctx, bucket, prefix, keyMarker, uploadIDMarker,
|
|
delimiter, maxUploads)
|
|
if err != nil {
|
|
return result, err
|
|
}
|
|
zoneResult.Uploads = append(zoneResult.Uploads, result.Uploads...)
|
|
}
|
|
return zoneResult, nil
|
|
}
|
|
|
|
// Initiate a new multipart upload on a hashedSet based on object name.
|
|
func (z *xlZones) NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (string, error) {
|
|
if err := checkNewMultipartArgs(ctx, bucket, object, z); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].NewMultipartUpload(ctx, bucket, object, opts)
|
|
}
|
|
return z.zones[z.getAvailableZoneIdx(ctx)].NewMultipartUpload(ctx, bucket, object, opts)
|
|
}
|
|
|
|
// Copies a part of an object from source hashedSet to destination hashedSet.
|
|
func (z *xlZones) CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int, startOffset int64, length int64, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (PartInfo, error) {
|
|
if err := checkNewMultipartArgs(ctx, srcBucket, srcObject, z); err != nil {
|
|
return PartInfo{}, err
|
|
}
|
|
|
|
return z.PutObjectPart(ctx, destBucket, destObject, uploadID, partID,
|
|
NewPutObjReader(srcInfo.Reader, nil, nil), dstOpts)
|
|
}
|
|
|
|
// PutObjectPart - writes part of an object to hashedSet based on the object name.
|
|
func (z *xlZones) PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, data *PutObjReader, opts ObjectOptions) (PartInfo, error) {
|
|
if err := checkPutObjectPartArgs(ctx, bucket, object, z); err != nil {
|
|
return PartInfo{}, err
|
|
}
|
|
|
|
uploadIDLock := z.NewNSLock(ctx, bucket, pathJoin(object, uploadID))
|
|
if err := uploadIDLock.GetLock(globalOperationTimeout); err != nil {
|
|
return PartInfo{}, err
|
|
}
|
|
defer uploadIDLock.Unlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].PutObjectPart(ctx, bucket, object, uploadID, partID, data, opts)
|
|
}
|
|
|
|
for _, zone := range z.zones {
|
|
_, err := zone.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
|
|
if err == nil {
|
|
return zone.PutObjectPart(ctx, bucket, object, uploadID, partID, data, opts)
|
|
}
|
|
switch err.(type) {
|
|
case InvalidUploadID:
|
|
// Look for information on the next zone
|
|
continue
|
|
}
|
|
// Any other unhandled errors such as quorum return.
|
|
return PartInfo{}, err
|
|
}
|
|
|
|
return PartInfo{}, InvalidUploadID{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
UploadID: uploadID,
|
|
}
|
|
}
|
|
|
|
func (z *xlZones) GetMultipartInfo(ctx context.Context, bucket, object, uploadID string, opts ObjectOptions) (MultipartInfo, error) {
|
|
if err := checkListPartsArgs(ctx, bucket, object, z); err != nil {
|
|
return MultipartInfo{}, err
|
|
}
|
|
|
|
uploadIDLock := z.NewNSLock(ctx, bucket, pathJoin(object, uploadID))
|
|
if err := uploadIDLock.GetRLock(globalOperationTimeout); err != nil {
|
|
return MultipartInfo{}, err
|
|
}
|
|
defer uploadIDLock.RUnlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].GetMultipartInfo(ctx, bucket, object, uploadID, opts)
|
|
}
|
|
for _, zone := range z.zones {
|
|
mi, err := zone.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
|
|
if err == nil {
|
|
return mi, nil
|
|
}
|
|
switch err.(type) {
|
|
case InvalidUploadID:
|
|
// upload id not found, continue to the next zone.
|
|
continue
|
|
}
|
|
// any other unhandled error return right here.
|
|
return MultipartInfo{}, err
|
|
}
|
|
return MultipartInfo{}, InvalidUploadID{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
UploadID: uploadID,
|
|
}
|
|
|
|
}
|
|
|
|
// ListObjectParts - lists all uploaded parts to an object in hashedSet.
|
|
func (z *xlZones) ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int, opts ObjectOptions) (ListPartsInfo, error) {
|
|
if err := checkListPartsArgs(ctx, bucket, object, z); err != nil {
|
|
return ListPartsInfo{}, err
|
|
}
|
|
|
|
uploadIDLock := z.NewNSLock(ctx, bucket, pathJoin(object, uploadID))
|
|
if err := uploadIDLock.GetRLock(globalOperationTimeout); err != nil {
|
|
return ListPartsInfo{}, err
|
|
}
|
|
defer uploadIDLock.RUnlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
|
|
}
|
|
for _, zone := range z.zones {
|
|
_, err := zone.GetMultipartInfo(ctx, bucket, object, uploadID, opts)
|
|
if err == nil {
|
|
return zone.ListObjectParts(ctx, bucket, object, uploadID, partNumberMarker, maxParts, opts)
|
|
}
|
|
switch err.(type) {
|
|
case InvalidUploadID:
|
|
continue
|
|
}
|
|
return ListPartsInfo{}, err
|
|
}
|
|
return ListPartsInfo{}, InvalidUploadID{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
UploadID: uploadID,
|
|
}
|
|
}
|
|
|
|
// Aborts an in-progress multipart operation on hashedSet based on the object name.
|
|
func (z *xlZones) AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error {
|
|
if err := checkAbortMultipartArgs(ctx, bucket, object, z); err != nil {
|
|
return err
|
|
}
|
|
|
|
uploadIDLock := z.NewNSLock(ctx, bucket, pathJoin(object, uploadID))
|
|
if err := uploadIDLock.GetLock(globalOperationTimeout); err != nil {
|
|
return err
|
|
}
|
|
defer uploadIDLock.Unlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].AbortMultipartUpload(ctx, bucket, object, uploadID)
|
|
}
|
|
|
|
for _, zone := range z.zones {
|
|
_, err := zone.GetMultipartInfo(ctx, bucket, object, uploadID, ObjectOptions{})
|
|
if err == nil {
|
|
return zone.AbortMultipartUpload(ctx, bucket, object, uploadID)
|
|
}
|
|
switch err.(type) {
|
|
case InvalidUploadID:
|
|
// upload id not found move to next zone
|
|
continue
|
|
}
|
|
return err
|
|
}
|
|
return InvalidUploadID{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
UploadID: uploadID,
|
|
}
|
|
}
|
|
|
|
// CompleteMultipartUpload - completes a pending multipart transaction, on hashedSet based on object name.
|
|
func (z *xlZones) CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart, opts ObjectOptions) (objInfo ObjectInfo, err error) {
|
|
if err = checkCompleteMultipartArgs(ctx, bucket, object, z); err != nil {
|
|
return objInfo, err
|
|
}
|
|
|
|
// Hold read-locks to verify uploaded parts, also disallows
|
|
// parallel part uploads as well.
|
|
uploadIDLock := z.NewNSLock(ctx, bucket, pathJoin(object, uploadID))
|
|
if err = uploadIDLock.GetRLock(globalOperationTimeout); err != nil {
|
|
return objInfo, err
|
|
}
|
|
defer uploadIDLock.RUnlock()
|
|
|
|
// Hold namespace to complete the transaction, only hold
|
|
// if uploadID can be held exclusively.
|
|
lk := z.NewNSLock(ctx, bucket, object)
|
|
if err = lk.GetLock(globalOperationTimeout); err != nil {
|
|
return objInfo, err
|
|
}
|
|
defer lk.Unlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].CompleteMultipartUpload(ctx, bucket, object, uploadID, uploadedParts, opts)
|
|
}
|
|
|
|
// Purge any existing object.
|
|
for _, zone := range z.zones {
|
|
zone.DeleteObject(ctx, bucket, object)
|
|
}
|
|
|
|
for _, zone := range z.zones {
|
|
result, err := zone.ListMultipartUploads(ctx, bucket, object, "", "", "", maxUploadsList)
|
|
if err != nil {
|
|
return objInfo, err
|
|
}
|
|
if result.Lookup(uploadID) {
|
|
return zone.CompleteMultipartUpload(ctx, bucket, object, uploadID, uploadedParts, opts)
|
|
}
|
|
}
|
|
return objInfo, InvalidUploadID{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
UploadID: uploadID,
|
|
}
|
|
}
|
|
|
|
// GetBucketInfo - returns bucket info from one of the erasure coded zones.
|
|
func (z *xlZones) GetBucketInfo(ctx context.Context, bucket string) (bucketInfo BucketInfo, err error) {
|
|
if z.SingleZone() {
|
|
bucketInfo, err = z.zones[0].GetBucketInfo(ctx, bucket)
|
|
if err != nil {
|
|
return bucketInfo, err
|
|
}
|
|
meta, err := globalBucketMetadataSys.Get(bucket)
|
|
if err == nil {
|
|
bucketInfo.Created = meta.Created
|
|
}
|
|
return bucketInfo, nil
|
|
}
|
|
for _, zone := range z.zones {
|
|
bucketInfo, err = zone.GetBucketInfo(ctx, bucket)
|
|
if err != nil {
|
|
if isErrBucketNotFound(err) {
|
|
continue
|
|
}
|
|
return bucketInfo, err
|
|
}
|
|
meta, err := globalBucketMetadataSys.Get(bucket)
|
|
if err == nil {
|
|
bucketInfo.Created = meta.Created
|
|
}
|
|
return bucketInfo, nil
|
|
}
|
|
return bucketInfo, BucketNotFound{
|
|
Bucket: bucket,
|
|
}
|
|
}
|
|
|
|
// IsNotificationSupported returns whether bucket notification is applicable for this layer.
|
|
func (z *xlZones) IsNotificationSupported() bool {
|
|
return true
|
|
}
|
|
|
|
// IsListenBucketSupported returns whether listen bucket notification is applicable for this layer.
|
|
func (z *xlZones) IsListenBucketSupported() bool {
|
|
return true
|
|
}
|
|
|
|
// IsEncryptionSupported returns whether server side encryption is implemented for this layer.
|
|
func (z *xlZones) IsEncryptionSupported() bool {
|
|
return true
|
|
}
|
|
|
|
// IsCompressionSupported returns whether compression is applicable for this layer.
|
|
func (z *xlZones) IsCompressionSupported() bool {
|
|
return true
|
|
}
|
|
|
|
func (z *xlZones) IsTaggingSupported() bool {
|
|
return true
|
|
}
|
|
|
|
// DeleteBucket - deletes a bucket on all zones simultaneously,
|
|
// even if one of the zones fail to delete buckets, we proceed to
|
|
// undo a successful operation.
|
|
func (z *xlZones) DeleteBucket(ctx context.Context, bucket string, forceDelete bool) error {
|
|
if z.SingleZone() {
|
|
return z.zones[0].DeleteBucket(ctx, bucket, forceDelete)
|
|
}
|
|
g := errgroup.WithNErrs(len(z.zones))
|
|
|
|
// Delete buckets in parallel across all zones.
|
|
for index := range z.zones {
|
|
index := index
|
|
g.Go(func() error {
|
|
return z.zones[index].DeleteBucket(ctx, bucket, forceDelete)
|
|
}, index)
|
|
}
|
|
|
|
errs := g.Wait()
|
|
|
|
// For any write quorum failure, we undo all the delete
|
|
// buckets operation by creating all the buckets again.
|
|
for _, err := range errs {
|
|
if err != nil {
|
|
if _, ok := err.(InsufficientWriteQuorum); ok {
|
|
undoDeleteBucketZones(bucket, z.zones, errs)
|
|
}
|
|
|
|
return err
|
|
}
|
|
}
|
|
|
|
// Success.
|
|
return nil
|
|
}
|
|
|
|
// This function is used to undo a successful DeleteBucket operation.
|
|
func undoDeleteBucketZones(bucket string, zones []*xlSets, errs []error) {
|
|
g := errgroup.WithNErrs(len(zones))
|
|
|
|
// Undo previous delete bucket on all underlying zones.
|
|
for index := range zones {
|
|
index := index
|
|
g.Go(func() error {
|
|
if errs[index] == nil {
|
|
return zones[index].MakeBucketWithLocation(GlobalContext, bucket, "", false)
|
|
}
|
|
return nil
|
|
}, index)
|
|
}
|
|
|
|
g.Wait()
|
|
}
|
|
|
|
// List all buckets from one of the zones, we are not doing merge
|
|
// sort here just for simplification. As per design it is assumed
|
|
// that all buckets are present on all zones.
|
|
func (z *xlZones) ListBuckets(ctx context.Context) (buckets []BucketInfo, err error) {
|
|
if z.SingleZone() {
|
|
buckets, err = z.zones[0].ListBuckets(ctx)
|
|
} else {
|
|
for _, zone := range z.zones {
|
|
buckets, err = zone.ListBuckets(ctx)
|
|
if err != nil {
|
|
logger.LogIf(ctx, err)
|
|
continue
|
|
}
|
|
break
|
|
}
|
|
}
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
for i := range buckets {
|
|
meta, err := globalBucketMetadataSys.Get(buckets[i].Name)
|
|
if err == nil {
|
|
buckets[i].Created = meta.Created
|
|
}
|
|
}
|
|
return buckets, nil
|
|
}
|
|
|
|
func (z *xlZones) ReloadFormat(ctx context.Context, dryRun bool) error {
|
|
// Acquire lock on format.json
|
|
formatLock := z.NewNSLock(ctx, minioMetaBucket, formatConfigFile)
|
|
if err := formatLock.GetRLock(globalHealingTimeout); err != nil {
|
|
return err
|
|
}
|
|
defer formatLock.RUnlock()
|
|
|
|
for _, zone := range z.zones {
|
|
if err := zone.ReloadFormat(ctx, dryRun); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (z *xlZones) HealFormat(ctx context.Context, dryRun bool) (madmin.HealResultItem, error) {
|
|
// Acquire lock on format.json
|
|
formatLock := z.NewNSLock(ctx, minioMetaBucket, formatConfigFile)
|
|
if err := formatLock.GetLock(globalHealingTimeout); err != nil {
|
|
return madmin.HealResultItem{}, err
|
|
}
|
|
defer formatLock.Unlock()
|
|
|
|
var r = madmin.HealResultItem{
|
|
Type: madmin.HealItemMetadata,
|
|
Detail: "disk-format",
|
|
}
|
|
|
|
var countNoHeal int
|
|
for _, zone := range z.zones {
|
|
result, err := zone.HealFormat(ctx, dryRun)
|
|
if err != nil && err != errNoHealRequired {
|
|
logger.LogIf(ctx, err)
|
|
continue
|
|
}
|
|
// Count errNoHealRequired across all zones,
|
|
// to return appropriate error to the caller
|
|
if err == errNoHealRequired {
|
|
countNoHeal++
|
|
}
|
|
r.DiskCount += result.DiskCount
|
|
r.SetCount += result.SetCount
|
|
r.Before.Drives = append(r.Before.Drives, result.Before.Drives...)
|
|
r.After.Drives = append(r.After.Drives, result.After.Drives...)
|
|
}
|
|
// No heal returned by all zones, return errNoHealRequired
|
|
if countNoHeal == len(z.zones) {
|
|
return r, errNoHealRequired
|
|
}
|
|
return r, nil
|
|
}
|
|
|
|
func (z *xlZones) HealBucket(ctx context.Context, bucket string, dryRun, remove bool) (madmin.HealResultItem, error) {
|
|
var r = madmin.HealResultItem{
|
|
Type: madmin.HealItemBucket,
|
|
Bucket: bucket,
|
|
}
|
|
|
|
for _, zone := range z.zones {
|
|
result, err := zone.HealBucket(ctx, bucket, dryRun, remove)
|
|
if err != nil {
|
|
switch err.(type) {
|
|
case BucketNotFound:
|
|
continue
|
|
}
|
|
return result, err
|
|
}
|
|
r.DiskCount += result.DiskCount
|
|
r.SetCount += result.SetCount
|
|
r.Before.Drives = append(r.Before.Drives, result.Before.Drives...)
|
|
r.After.Drives = append(r.After.Drives, result.After.Drives...)
|
|
}
|
|
return r, nil
|
|
}
|
|
|
|
// Walk a bucket, optionally prefix recursively, until we have returned
|
|
// all the content to objectInfo channel, it is callers responsibility
|
|
// to allocate a receive channel for ObjectInfo, upon any unhandled
|
|
// error walker returns error. Optionally if context.Done() is received
|
|
// then Walk() stops the walker.
|
|
func (z *xlZones) Walk(ctx context.Context, bucket, prefix string, results chan<- ObjectInfo) error {
|
|
if err := checkListObjsArgs(ctx, bucket, prefix, "", z); err != nil {
|
|
// Upon error close the channel.
|
|
close(results)
|
|
return err
|
|
}
|
|
|
|
var zonesEntryChs [][]FileInfoCh
|
|
|
|
for _, zone := range z.zones {
|
|
zonesEntryChs = append(zonesEntryChs,
|
|
zone.startMergeWalks(ctx, bucket, prefix, "", true, ctx.Done()))
|
|
}
|
|
|
|
var zoneDrivesPerSet []int
|
|
for _, zone := range z.zones {
|
|
zoneDrivesPerSet = append(zoneDrivesPerSet, zone.drivesPerSet)
|
|
}
|
|
|
|
var zonesEntriesInfos [][]FileInfo
|
|
var zonesEntriesValid [][]bool
|
|
for _, entryChs := range zonesEntryChs {
|
|
zonesEntriesInfos = append(zonesEntriesInfos, make([]FileInfo, len(entryChs)))
|
|
zonesEntriesValid = append(zonesEntriesValid, make([]bool, len(entryChs)))
|
|
}
|
|
|
|
go func() {
|
|
defer close(results)
|
|
|
|
for {
|
|
entry, quorumCount, zoneIndex, ok := leastEntryZone(zonesEntryChs,
|
|
zonesEntriesInfos, zonesEntriesValid)
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
if quorumCount >= zoneDrivesPerSet[zoneIndex]/2 {
|
|
results <- entry.ToObjectInfo() // Read quorum exists proceed
|
|
}
|
|
|
|
// skip entries which do not have quorum
|
|
}
|
|
}()
|
|
|
|
return nil
|
|
}
|
|
|
|
type healObjectFn func(string, string) error
|
|
|
|
func (z *xlZones) HealObjects(ctx context.Context, bucket, prefix string, opts madmin.HealOpts, healObject healObjectFn) error {
|
|
var zonesEntryChs [][]FileInfoCh
|
|
|
|
endWalkCh := make(chan struct{})
|
|
defer close(endWalkCh)
|
|
|
|
for _, zone := range z.zones {
|
|
zonesEntryChs = append(zonesEntryChs,
|
|
zone.startMergeWalks(ctx, bucket, prefix, "", true, endWalkCh))
|
|
}
|
|
|
|
var zoneDrivesPerSet []int
|
|
for _, zone := range z.zones {
|
|
zoneDrivesPerSet = append(zoneDrivesPerSet, zone.drivesPerSet)
|
|
}
|
|
|
|
var zonesEntriesInfos [][]FileInfo
|
|
var zonesEntriesValid [][]bool
|
|
for _, entryChs := range zonesEntryChs {
|
|
zonesEntriesInfos = append(zonesEntriesInfos, make([]FileInfo, len(entryChs)))
|
|
zonesEntriesValid = append(zonesEntriesValid, make([]bool, len(entryChs)))
|
|
}
|
|
|
|
for {
|
|
entry, quorumCount, zoneIndex, ok := leastEntryZone(zonesEntryChs, zonesEntriesInfos, zonesEntriesValid)
|
|
if !ok {
|
|
break
|
|
}
|
|
|
|
if quorumCount == zoneDrivesPerSet[zoneIndex] && opts.ScanMode == madmin.HealNormalScan {
|
|
// Skip good entries.
|
|
continue
|
|
}
|
|
|
|
// Wait and proceed if there are active requests
|
|
waitForLowHTTPReq(int32(zoneDrivesPerSet[zoneIndex]))
|
|
|
|
if err := healObject(bucket, entry.Name); err != nil {
|
|
return toObjectErr(err, bucket, entry.Name)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (z *xlZones) HealObject(ctx context.Context, bucket, object string, opts madmin.HealOpts) (madmin.HealResultItem, error) {
|
|
// Lock the object before healing. Use read lock since healing
|
|
// will only regenerate parts & xl.json of outdated disks.
|
|
lk := z.NewNSLock(ctx, bucket, object)
|
|
if err := lk.GetRLock(globalHealingTimeout); err != nil {
|
|
return madmin.HealResultItem{}, err
|
|
}
|
|
defer lk.RUnlock()
|
|
|
|
if z.SingleZone() {
|
|
return z.zones[0].HealObject(ctx, bucket, object, opts)
|
|
}
|
|
for _, zone := range z.zones {
|
|
result, err := zone.HealObject(ctx, bucket, object, opts)
|
|
if err != nil {
|
|
if isErrObjectNotFound(err) {
|
|
continue
|
|
}
|
|
return result, err
|
|
}
|
|
return result, nil
|
|
}
|
|
return madmin.HealResultItem{}, ObjectNotFound{
|
|
Bucket: bucket,
|
|
Object: object,
|
|
}
|
|
}
|
|
|
|
func (z *xlZones) ListBucketsHeal(ctx context.Context) ([]BucketInfo, error) {
|
|
var healBuckets []BucketInfo
|
|
for _, zone := range z.zones {
|
|
bucketsInfo, err := zone.ListBucketsHeal(ctx)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
healBuckets = append(healBuckets, bucketsInfo...)
|
|
}
|
|
|
|
for i := range healBuckets {
|
|
meta, err := globalBucketMetadataSys.Get(healBuckets[i].Name)
|
|
if err == nil {
|
|
healBuckets[i].Created = meta.Created
|
|
}
|
|
}
|
|
|
|
return healBuckets, nil
|
|
}
|
|
|
|
// GetMetrics - no op
|
|
func (z *xlZones) GetMetrics(ctx context.Context) (*Metrics, error) {
|
|
logger.LogIf(ctx, NotImplemented{})
|
|
return &Metrics{}, NotImplemented{}
|
|
}
|
|
|
|
func (z *xlZones) getZoneAndSet(id string) (int, int, error) {
|
|
for zoneIdx := range z.zones {
|
|
format := z.zones[zoneIdx].format
|
|
for setIdx, set := range format.XL.Sets {
|
|
for _, diskID := range set {
|
|
if diskID == id {
|
|
return zoneIdx, setIdx, nil
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0, 0, errDiskNotFound
|
|
}
|
|
|
|
// IsReady - Returns true all the erasure sets are writable.
|
|
func (z *xlZones) IsReady(ctx context.Context) bool {
|
|
erasureSetUpCount := make([][]int, len(z.zones))
|
|
for i := range z.zones {
|
|
erasureSetUpCount[i] = make([]int, len(z.zones[i].sets))
|
|
}
|
|
|
|
diskIDs := globalNotificationSys.GetLocalDiskIDs()
|
|
|
|
diskIDs = append(diskIDs, getLocalDiskIDs(z)...)
|
|
|
|
for _, id := range diskIDs {
|
|
zoneIdx, setIdx, err := z.getZoneAndSet(id)
|
|
if err != nil {
|
|
continue
|
|
}
|
|
erasureSetUpCount[zoneIdx][setIdx]++
|
|
}
|
|
|
|
for zoneIdx := range erasureSetUpCount {
|
|
parityDrives := globalStorageClass.GetParityForSC(storageclass.STANDARD)
|
|
diskCount := len(z.zones[zoneIdx].format.XL.Sets[0])
|
|
if parityDrives == 0 {
|
|
parityDrives = getDefaultParityBlocks(diskCount)
|
|
}
|
|
dataDrives := diskCount - parityDrives
|
|
writeQuorum := dataDrives
|
|
if dataDrives == parityDrives {
|
|
writeQuorum++
|
|
}
|
|
for setIdx := range erasureSetUpCount[zoneIdx] {
|
|
if erasureSetUpCount[zoneIdx][setIdx] < writeQuorum {
|
|
return false
|
|
}
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
// PutObjectTags - replace or add tags to an existing object
|
|
func (z *xlZones) PutObjectTags(ctx context.Context, bucket, object string, tags string) error {
|
|
if z.SingleZone() {
|
|
return z.zones[0].PutObjectTags(ctx, bucket, object, tags)
|
|
}
|
|
for _, zone := range z.zones {
|
|
err := zone.PutObjectTags(ctx, bucket, object, tags)
|
|
if err != nil {
|
|
if isErrBucketNotFound(err) {
|
|
continue
|
|
}
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
return BucketNotFound{
|
|
Bucket: bucket,
|
|
}
|
|
}
|
|
|
|
// DeleteObjectTags - delete object tags from an existing object
|
|
func (z *xlZones) DeleteObjectTags(ctx context.Context, bucket, object string) error {
|
|
if z.SingleZone() {
|
|
return z.zones[0].DeleteObjectTags(ctx, bucket, object)
|
|
}
|
|
for _, zone := range z.zones {
|
|
err := zone.DeleteObjectTags(ctx, bucket, object)
|
|
if err != nil {
|
|
if isErrBucketNotFound(err) {
|
|
continue
|
|
}
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
return BucketNotFound{
|
|
Bucket: bucket,
|
|
}
|
|
}
|
|
|
|
// GetObjectTags - get object tags from an existing object
|
|
func (z *xlZones) GetObjectTags(ctx context.Context, bucket, object string) (*tags.Tags, error) {
|
|
if z.SingleZone() {
|
|
return z.zones[0].GetObjectTags(ctx, bucket, object)
|
|
}
|
|
for _, zone := range z.zones {
|
|
tags, err := zone.GetObjectTags(ctx, bucket, object)
|
|
if err != nil {
|
|
if isErrBucketNotFound(err) {
|
|
continue
|
|
}
|
|
return tags, err
|
|
}
|
|
return tags, nil
|
|
}
|
|
return nil, BucketNotFound{
|
|
Bucket: bucket,
|
|
}
|
|
}
|