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merge object lifecycle checks into usage crawler (#9579)

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Klaus Post 2020-06-12 10:28:21 -07:00 committed by GitHub
parent 225b812b5e
commit 43d6e3ae06
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18 changed files with 1400 additions and 852 deletions
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133
cmd/daily-lifecycle-ops.go
View File

@ -1,133 +0,0 @@
/*
* MinIO Cloud Storage, (C) 2019 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"context"
"time"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/bucket/lifecycle"
"github.com/minio/minio/pkg/event"
)
const (
bgLifecycleInterval = 24 * time.Hour
)
// initDailyLifecycle starts the routine that receives the daily
// listing of all objects and applies any matching bucket lifecycle
// rules.
func initDailyLifecycle(ctx context.Context, objAPI ObjectLayer) {
go startDailyLifecycle(ctx, objAPI)
}
func startDailyLifecycle(ctx context.Context, objAPI ObjectLayer) {
for {
select {
case <-ctx.Done():
return
case <-time.NewTimer(bgLifecycleInterval).C:
// Perform one lifecycle operation
logger.LogIf(ctx, lifecycleRound(ctx, objAPI))
}
}
}
func lifecycleRound(ctx context.Context, objAPI ObjectLayer) error {
buckets, err := objAPI.ListBuckets(ctx)
if err != nil {
return err
}
for _, bucket := range buckets {
// Check if the current bucket has a configured lifecycle policy, skip otherwise
l, err := globalLifecycleSys.Get(bucket.Name)
if err != nil {
if _, ok := err.(BucketLifecycleNotFound); !ok {
logger.LogIf(ctx, err)
}
continue
}
rcfg, _ := globalBucketObjectLockSys.Get(bucket.Name)
// Calculate the common prefix of all lifecycle rules
var prefixes []string
for _, rule := range l.Rules {
prefixes = append(prefixes, rule.Prefix())
}
commonPrefix := lcp(prefixes)
// Allocate new results channel to receive ObjectInfo.
objInfoCh := make(chan ObjectInfo)
// Walk through all objects
if err := objAPI.Walk(ctx, bucket.Name, commonPrefix, objInfoCh); err != nil {
return err
}
for {
var objects []string
for obj := range objInfoCh {
if len(objects) == maxDeleteList {
// Reached maximum delete requests, attempt a delete for now.
break
}
// Find the action that need to be executed
if l.ComputeAction(obj.Name, obj.UserTags, obj.ModTime) == lifecycle.DeleteAction {
if rcfg.LockEnabled && enforceRetentionForDeletion(ctx, obj) {
continue
}
objects = append(objects, obj.Name)
}
}
// Nothing to do.
if len(objects) == 0 {
break
}
waitForLowHTTPReq(int32(globalEndpoints.NEndpoints()))
// Deletes a list of objects.
deleteErrs, err := objAPI.DeleteObjects(ctx, bucket.Name, objects)
if err != nil {
logger.LogIf(ctx, err)
} else {
for i := range deleteErrs {
if deleteErrs[i] != nil {
logger.LogIf(ctx, deleteErrs[i])
continue
}
// Notify object deleted event.
sendEvent(eventArgs{
EventName: event.ObjectRemovedDelete,
BucketName: bucket.Name,
Object: ObjectInfo{
Name: objects[i],
},
Host: "Internal: [ILM-EXPIRY]",
})
}
}
}
}
return nil
}

600
cmd/data-crawler.go Normal file
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@ -0,0 +1,600 @@
/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"bytes"
"context"
"encoding/binary"
"errors"
"os"
"path"
"strconv"
"strings"
"time"
"github.com/minio/minio/cmd/config"
xhttp "github.com/minio/minio/cmd/http"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/bucket/lifecycle"
"github.com/minio/minio/pkg/color"
"github.com/minio/minio/pkg/env"
"github.com/minio/minio/pkg/event"
"github.com/minio/minio/pkg/hash"
"github.com/willf/bloom"
)
const (
dataCrawlSleepPerFolder = time.Millisecond // Time to wait between folders.
dataCrawlSleepDefMult = 10.0 // Default multiplier for waits between operations.
dataCrawlStartDelay = 5 * time.Minute // Time to wait on startup and between cycles.
dataUsageUpdateDirCycles = 16 // Visit all folders every n cycles.
)
// initDataCrawler will start the crawler unless disabled.
func initDataCrawler(ctx context.Context, objAPI ObjectLayer) {
if env.Get(envDataUsageCrawlConf, config.EnableOn) == config.EnableOn {
go runDataCrawler(ctx, objAPI)
}
}
// runDataCrawler will start a data crawler.
// The function will block until the context is canceled.
// There should only ever be one crawler running per cluster.
func runDataCrawler(ctx context.Context, objAPI ObjectLayer) {
// Load current bloom cycle
nextBloomCycle := intDataUpdateTracker.current() + 1
var buf bytes.Buffer
err := objAPI.GetObject(ctx, dataUsageBucket, dataUsageBloomName, 0, -1, &buf, "", ObjectOptions{})
if err != nil {
if !isErrObjectNotFound(err) && !isErrBucketNotFound(err) {
logger.LogIf(ctx, err)
}
} else {
if buf.Len() == 8 {
nextBloomCycle = binary.LittleEndian.Uint64(buf.Bytes())
}
}
for {
select {
case <-ctx.Done():
return
case <-time.NewTimer(dataCrawlStartDelay).C:
// Wait before starting next cycle and wait on startup.
results := make(chan DataUsageInfo, 1)
go storeDataUsageInBackend(ctx, objAPI, results)
bf, err := globalNotificationSys.updateBloomFilter(ctx, nextBloomCycle)
logger.LogIf(ctx, err)
err = objAPI.CrawlAndGetDataUsage(ctx, bf, results)
close(results)
logger.LogIf(ctx, err)
if err == nil {
// Store new cycle...
nextBloomCycle++
if nextBloomCycle%dataUpdateTrackerResetEvery == 0 {
if intDataUpdateTracker.debug {
logger.Info(color.Green("runDataCrawler:") + " Resetting bloom filter for next runs.")
}
nextBloomCycle++
}
var tmp [8]byte
binary.LittleEndian.PutUint64(tmp[:], nextBloomCycle)
r, err := hash.NewReader(bytes.NewReader(tmp[:]), int64(len(tmp)), "", "", int64(len(tmp)), false)
if err != nil {
logger.LogIf(ctx, err)
continue
}
_, err = objAPI.PutObject(ctx, dataUsageBucket, dataUsageBloomName, NewPutObjReader(r, nil, nil), ObjectOptions{})
if !isErrBucketNotFound(err) {
logger.LogIf(ctx, err)
}
}
}
}
}
type cachedFolder struct {
name string
parent *dataUsageHash
}
type folderScanner struct {
root string
getSize getSizeFn
oldCache dataUsageCache
newCache dataUsageCache
withFilter *bloomFilter
waitForLowActiveIO func()
dataUsageCrawlMult float64
dataUsageCrawlDebug bool
newFolders []cachedFolder
existingFolders []cachedFolder
}
// crawlDataFolder will crawl the basepath+cache.Info.Name and return an updated cache.
// The returned cache will always be valid, but may not be updated from the existing.
// Before each operation waitForLowActiveIO is called which can be used to temporarily halt the crawler.
// If the supplied context is canceled the function will return at the first chance.
func crawlDataFolder(ctx context.Context, basePath string, cache dataUsageCache, waitForLowActiveIO func(), getSize getSizeFn) (dataUsageCache, error) {
t := UTCNow()
logPrefix := color.Green("data-usage: ")
logSuffix := color.Blue(" - %v + %v", basePath, cache.Info.Name)
if intDataUpdateTracker.debug {
defer func() {
logger.Info(logPrefix+" Crawl time: %v"+logSuffix, time.Since(t))
}()
}
switch cache.Info.Name {
case "", dataUsageRoot:
return cache, errors.New("internal error: root scan attempted")
}
delayMult, err := strconv.ParseFloat(env.Get(envDataUsageCrawlDelay, "10.0"), 64)
if err != nil {
logger.LogIf(ctx, err)
delayMult = dataCrawlSleepDefMult
}
s := folderScanner{
root: basePath,
getSize: getSize,
oldCache: cache,
newCache: dataUsageCache{Info: cache.Info},
waitForLowActiveIO: waitForLowActiveIO,
newFolders: nil,
existingFolders: nil,
dataUsageCrawlMult: delayMult,
dataUsageCrawlDebug: intDataUpdateTracker.debug,
}
if len(cache.Info.BloomFilter) > 0 {
s.withFilter = &bloomFilter{BloomFilter: &bloom.BloomFilter{}}
_, err := s.withFilter.ReadFrom(bytes.NewBuffer(cache.Info.BloomFilter))
if err != nil {
logger.LogIf(ctx, err, logPrefix+"Error reading bloom filter")
s.withFilter = nil
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Start crawling. Bloom filter: %v"+logSuffix, s.withFilter != nil)
}
done := ctx.Done()
var flattenLevels = 2
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Cycle: %v, Entries: %v"+logSuffix, cache.Info.NextCycle, len(cache.Cache))
}
// Always scan flattenLevels deep. Cache root is level 0.
todo := []cachedFolder{{name: cache.Info.Name}}
for i := 0; i < flattenLevels; i++ {
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Level %v, scanning %v directories."+logSuffix, i, len(todo))
}
select {
case <-done:
return cache, ctx.Err()
default:
}
var err error
todo, err = s.scanQueuedLevels(ctx, todo, i == flattenLevels-1)
if err != nil {
// No useful information...
return cache, err
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"New folders: %v"+logSuffix, s.newFolders)
}
// Add new folders first
for _, folder := range s.newFolders {
select {
case <-done:
return s.newCache, ctx.Err()
default:
}
du, err := s.deepScanFolder(ctx, folder.name)
if err != nil {
logger.LogIf(ctx, err)
continue
}
if du == nil {
logger.Info(logPrefix + "no disk usage provided" + logSuffix)
continue
}
s.newCache.replace(folder.name, "", *du)
// Add to parent manually
if folder.parent != nil {
parent := s.newCache.Cache[folder.parent.Key()]
parent.addChildString(folder.name)
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Existing folders: %v"+logSuffix, len(s.existingFolders))
}
// Do selective scanning of existing folders.
for _, folder := range s.existingFolders {
select {
case <-done:
return s.newCache, ctx.Err()
default:
}
h := hashPath(folder.name)
if !h.mod(s.oldCache.Info.NextCycle, dataUsageUpdateDirCycles) {
s.newCache.replaceHashed(h, folder.parent, s.oldCache.Cache[h.Key()])
continue
}
if s.withFilter != nil {
_, prefix := path2BucketObjectWithBasePath(basePath, folder.name)
if s.oldCache.Info.lifeCycle == nil || !s.oldCache.Info.lifeCycle.HasActiveRules(prefix, true) {
// If folder isn't in filter, skip it completely.
if !s.withFilter.containsDir(folder.name) {
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Skipping non-updated folder: %v"+logSuffix, folder)
}
s.newCache.replaceHashed(h, folder.parent, s.oldCache.Cache[h.Key()])
continue
}
}
}
// Update on this cycle...
du, err := s.deepScanFolder(ctx, folder.name)
if err != nil {
logger.LogIf(ctx, err)
continue
}
if du == nil {
logger.LogIf(ctx, errors.New("data-usage: no disk usage provided"))
continue
}
s.newCache.replaceHashed(h, folder.parent, *du)
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Finished crawl, %v entries"+logSuffix, len(s.newCache.Cache))
}
s.newCache.Info.LastUpdate = UTCNow()
s.newCache.Info.NextCycle++
return s.newCache, nil
}
// scanQueuedLevels will scan the provided folders.
// Files found in the folders will be added to f.newCache.
// If final is provided folders will be put into f.newFolders or f.existingFolders.
// If final is not provided the folders found are returned from the function.
func (f *folderScanner) scanQueuedLevels(ctx context.Context, folders []cachedFolder, final bool) ([]cachedFolder, error) {
var nextFolders []cachedFolder
done := ctx.Done()
for _, folder := range folders {
select {
case <-done:
return nil, ctx.Err()
default:
}
thisHash := hashPath(folder.name)
// If there are lifecycle rules for the prefix, remove the filter.
filter := f.withFilter
var activeLifeCycle *lifecycle.Lifecycle
if f.oldCache.Info.lifeCycle != nil && filter != nil {
_, prefix := path2BucketObjectWithBasePath(f.root, folder.name)
if f.oldCache.Info.lifeCycle.HasActiveRules(prefix, true) {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" Prefix %q has active rules", prefix)
}
activeLifeCycle = f.oldCache.Info.lifeCycle
filter = nil
}
}
if _, ok := f.oldCache.Cache[thisHash.Key()]; filter != nil && ok {
// If folder isn't in filter and we have data, skip it completely.
if folder.name != dataUsageRoot && !filter.containsDir(folder.name) {
f.newCache.copyWithChildren(&f.oldCache, thisHash, folder.parent)
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" Skipping non-updated folder: %v", folder.name)
}
continue
}
}
f.waitForLowActiveIO()
sleepDuration(dataCrawlSleepPerFolder, f.dataUsageCrawlMult)
cache := dataUsageEntry{}
err := readDirFn(path.Join(f.root, folder.name), func(entName string, typ os.FileMode) error {
// Parse
entName = path.Clean(path.Join(folder.name, entName))
bucket, prefix := path2BucketObjectWithBasePath(f.root, entName)
if bucket == "" {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" no bucket (%s,%s)", f.root, entName)
}
return nil
}
if isReservedOrInvalidBucket(bucket, false) {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" invalid bucket: %v, entry: %v", bucket, entName)
}
return nil
}
select {
case <-done:
return ctx.Err()
default:
}
if typ&os.ModeDir != 0 {
h := hashPath(entName)
_, exists := f.oldCache.Cache[h.Key()]
cache.addChildString(entName)
this := cachedFolder{name: entName, parent: &thisHash}
cache.addChild(h)
if final {
if exists {
f.existingFolders = append(f.existingFolders, this)
} else {
f.newFolders = append(f.newFolders, this)
}
} else {
nextFolders = append(nextFolders, this)
}
return nil
}
f.waitForLowActiveIO()
// Dynamic time delay.
t := UTCNow()
// Get file size, ignore errors.
item := crawlItem{
Path: path.Join(f.root, entName),
Typ: typ,
bucket: bucket,
prefix: path.Dir(prefix),
objectName: path.Base(entName),
debug: f.dataUsageCrawlDebug,
lifeCycle: activeLifeCycle,
}
size, err := f.getSize(item)
sleepDuration(time.Since(t), f.dataUsageCrawlMult)
if err == errSkipFile || err == errFileNotFound {
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.Objects++
cache.ObjSizes.add(size)
return nil
})
if err != nil {
return nil, err
}
f.newCache.replaceHashed(thisHash, folder.parent, cache)
}
return nextFolders, nil
}
// deepScanFolder will deep scan a folder and return the size if no error occurs.
func (f *folderScanner) deepScanFolder(ctx context.Context, folder string) (*dataUsageEntry, error) {
var cache dataUsageEntry
done := ctx.Done()
var addDir func(entName string, typ os.FileMode) error
var dirStack = []string{f.root, folder}
addDir = func(entName string, typ os.FileMode) error {
select {
case <-done:
return ctx.Err()
default:
}
f.waitForLowActiveIO()
if typ&os.ModeDir != 0 {
dirStack = append(dirStack, entName)
err := readDirFn(path.Join(dirStack...), addDir)
dirStack = dirStack[:len(dirStack)-1]
sleepDuration(dataCrawlSleepPerFolder, f.dataUsageCrawlMult)
return err
}
// Dynamic time delay.
t := UTCNow()
// Get file size, ignore errors.
dirStack = append(dirStack, entName)
fileName := path.Join(dirStack...)
dirStack = dirStack[:len(dirStack)-1]
bucket, prefix := path2BucketObjectWithBasePath(f.root, fileName)
var activeLifeCycle *lifecycle.Lifecycle
if f.oldCache.Info.lifeCycle != nil {
if f.oldCache.Info.lifeCycle.HasActiveRules(prefix, false) {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" Prefix %q has active rules", prefix)
}
activeLifeCycle = f.oldCache.Info.lifeCycle
}
}
size, err := f.getSize(
crawlItem{
Path: fileName,
Typ: typ,
bucket: bucket,
prefix: path.Dir(prefix),
objectName: path.Base(entName),
debug: f.dataUsageCrawlDebug,
lifeCycle: activeLifeCycle,
})
// Don't sleep for really small amount of time
sleepDuration(time.Since(t), f.dataUsageCrawlMult)
if err == errSkipFile {
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.Objects++
cache.ObjSizes.add(size)
return nil
}
err := readDirFn(path.Join(dirStack...), addDir)
if err != nil {
return nil, err
}
return &cache, nil
}
// crawlItem represents each file while walking.
type crawlItem struct {
Path string
Typ os.FileMode
bucket string // Bucket.
prefix string // Only the prefix if any, does not have final object name.
objectName string // Only the object name without prefixes.
lifeCycle *lifecycle.Lifecycle
debug bool
}
type getSizeFn func(item crawlItem) (int64, error)
// transformMetaDir will transform a directory to prefix/file.ext
func (i *crawlItem) transformMetaDir() {
split := strings.Split(i.prefix, SlashSeparator)
if len(split) > 1 {
i.prefix = path.Join(split[:len(split)-1]...)
} else {
i.prefix = ""
}
// Object name is last element
i.objectName = split[len(split)-1]
}
// actionMeta contains information used to apply actions.
type actionMeta struct {
oi ObjectInfo
trustOI bool // Set true if oi can be trusted and has been read with quorum.
meta map[string]string
}
// applyActions will apply lifecycle checks on to a scanned item.
// The resulting size on disk will always be returned.
// The metadata will be compared to consensus on the object layer before any changes are applied.
// If no metadata is supplied, -1 is returned if no action is taken.
func (i *crawlItem) applyActions(ctx context.Context, o ObjectLayer, meta actionMeta) (size int64) {
size, err := meta.oi.GetActualSize()
if i.debug {
logger.LogIf(ctx, err)
}
if i.lifeCycle == nil {
return size
}
action := i.lifeCycle.ComputeAction(i.objectPath(), meta.meta[xhttp.AmzObjectTagging], meta.oi.ModTime)
if i.debug {
logger.Info(color.Green("applyActions:")+" lifecycle: %q, Initial scan: %v", i.objectPath(), action)
}
switch action {
case lifecycle.DeleteAction:
default:
// No action.
return size
}
// These (expensive) operations should only run on items we are likely to delete.
// Load to ensure that we have the correct version and not an unsynced version.
if !meta.trustOI {
obj, err := o.GetObjectInfo(ctx, i.bucket, i.objectPath(), ObjectOptions{})
if err != nil {
// Do nothing - heal in the future.
logger.LogIf(ctx, err)
return size
}
size = obj.Size
// Recalculate action.
action = i.lifeCycle.ComputeAction(i.objectPath(), obj.UserTags, obj.ModTime)
if i.debug {
logger.Info(color.Green("applyActions:")+" lifecycle: Secondary scan: %v", action)
}
switch action {
case lifecycle.DeleteAction:
default:
// No action.
return size
}
}
err = o.DeleteObject(ctx, i.bucket, i.objectPath())
if err != nil {
// Assume it is still there.
logger.LogIf(ctx, err)
return size
}
// Notify object deleted event.
sendEvent(eventArgs{
EventName: event.ObjectRemovedDelete,
BucketName: i.bucket,
Object: ObjectInfo{
Name: i.objectPath(),
},
Host: "Internal: [ILM-EXPIRY]",
})
return 0
}
// objectPath returns the prefix and object name.
func (i *crawlItem) objectPath() string {
return path.Join(i.prefix, i.objectName)
}
// sleepDuration multiplies the duration d by x and sleeps if is more than 100 micro seconds.
// sleep is limited to max 1 second.
func sleepDuration(d time.Duration, x float64) {
// Don't sleep for really small amount of time
if d := time.Duration(float64(d) * x); d > time.Microsecond*100 {
if d > time.Second {
d = time.Second
}
time.Sleep(d)
}
}

13
cmd/data-update-tracker.go
View File

@ -46,7 +46,7 @@ const (
dataUpdateTrackerQueueSize = 10000
dataUpdateTrackerFilename = dataUsageBucket + SlashSeparator + ".tracker.bin"
dataUpdateTrackerVersion = 1
dataUpdateTrackerVersion = 2
dataUpdateTrackerSaveInterval = 5 * time.Minute
// Reset bloom filters every n cycle
@ -116,9 +116,7 @@ func (b bloomFilter) containsDir(in string) bool {
if len(split) == 0 {
return false
}
var tmp [dataUsageHashLen]byte
hashPath(path.Join(split...)).bytes(tmp[:])
return b.Test(tmp[:])
return b.TestString(hashPath(path.Join(split...)).String())
}
// bytes returns the bloom filter serialized as a byte slice.
@ -366,6 +364,9 @@ func (d *dataUpdateTracker) deserialize(src io.Reader, newerThan time.Time) erro
return err
}
switch tmp[0] {
case 1:
logger.Info(color.Green("dataUpdateTracker: ") + "deprecated data version, updating.")
return nil
case dataUpdateTrackerVersion:
default:
return errors.New("dataUpdateTracker: Unknown data version")
@ -435,7 +436,6 @@ func (d *dataUpdateTracker) deserialize(src io.Reader, newerThan time.Time) erro
// start a collector that picks up entries from objectUpdatedCh
// and adds them to the current bloom filter.
func (d *dataUpdateTracker) startCollector(ctx context.Context) {
var tmp [dataUsageHashLen]byte
for {
select {
case <-ctx.Done():
@ -463,8 +463,7 @@ func (d *dataUpdateTracker) startCollector(ctx context.Context) {
if d.debug && false {
logger.Info(color.Green("dataUpdateTracker:") + " Marking path dirty: " + color.Blue(path.Join(split[:i+1]...)))
}
hashPath(path.Join(split[:i+1]...)).bytes(tmp[:])
d.Current.bf.Add(tmp[:])
d.Current.bf.AddString(hashPath(path.Join(split[:i+1]...)).String())
}
d.dirty = d.dirty || len(split) > 0
d.mu.Unlock()

374
cmd/data-usage-cache.go
View File

@ -19,7 +19,6 @@ package cmd
import (
"bytes"
"context"
"encoding/binary"
"errors"
"fmt"
"io"
@ -29,17 +28,17 @@ import (
"time"
"github.com/cespare/xxhash/v2"
"github.com/klauspost/compress/zstd"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/bucket/lifecycle"
"github.com/minio/minio/pkg/hash"
"github.com/tinylib/msgp/msgp"
)
const dataUsageHashLen = 8
//go:generate msgp -file $GOFILE -unexported
// dataUsageHash is the hash type used.
type dataUsageHash uint64
type dataUsageHash string
// sizeHistogram is a size histogram.
type sizeHistogram [dataUsageBucketLen]uint64
@ -54,6 +53,12 @@ type dataUsageEntry struct {
Children dataUsageHashMap
}
// dataUsageCache contains a cache of data usage entries.
type dataUsageCache struct {
Info dataUsageCacheInfo
Cache map[string]dataUsageEntry
}
//msgp:ignore dataUsageEntryInfo
type dataUsageEntryInfo struct {
Name string
@ -66,7 +71,8 @@ type dataUsageCacheInfo struct {
Name string
LastUpdate time.Time
NextCycle uint32
BloomFilter []byte `msg:"BloomFilter,omitempty"`
BloomFilter []byte `msg:"BloomFilter,omitempty"`
lifeCycle *lifecycle.Lifecycle `msg:"-"`
}
// merge other data usage entry into this, excluding children.
@ -80,7 +86,7 @@ func (e *dataUsageEntry) merge(other dataUsageEntry) {
// mod returns true if the hash mod cycles == cycle.
func (h dataUsageHash) mod(cycle uint32, cycles uint32) bool {
return uint32(h)%cycles == cycle%cycles
return uint32(xxhash.Sum64String(string(h)))%cycles == cycle%cycles
}
// addChildString will add a child based on its name.
@ -92,25 +98,95 @@ func (e *dataUsageEntry) addChildString(name string) {
// addChild will add a child based on its hash.
// If it already exists it will not be added again.
func (e *dataUsageEntry) addChild(hash dataUsageHash) {
if _, ok := e.Children[hash]; ok {
if _, ok := e.Children[hash.Key()]; ok {
return
}
if e.Children == nil {
e.Children = make(dataUsageHashMap, 1)
}
e.Children[hash] = struct{}{}
e.Children[hash.Key()] = struct{}{}
}
// find a path in the cache.
// Returns nil if not found.
func (d *dataUsageCache) find(path string) *dataUsageEntry {
due, ok := d.Cache[hashPath(path)]
due, ok := d.Cache[hashPath(path).Key()]
if !ok {
return nil
}
return &due
}
// Returns nil if not found.
func (d *dataUsageCache) subCache(path string) dataUsageCache {
dst := dataUsageCache{Info: dataUsageCacheInfo{
Name: path,
LastUpdate: d.Info.LastUpdate,
BloomFilter: d.Info.BloomFilter,
}}
dst.copyWithChildren(d, dataUsageHash(hashPath(path).Key()), nil)
return dst
}
func (d *dataUsageCache) deleteRecursive(h dataUsageHash) {
if existing, ok := d.Cache[h.String()]; ok {
// Delete first if there should be a loop.
delete(d.Cache, h.Key())
for child := range existing.Children {
d.deleteRecursive(dataUsageHash(child))
}
}
}
// replaceRootChild will replace the child of root in d with the root of 'other'.
func (d *dataUsageCache) replaceRootChild(other dataUsageCache) {
otherRoot := other.root()
if otherRoot == nil {
logger.LogIf(GlobalContext, errors.New("replaceRootChild: Source has no root"))
return
}
thisRoot := d.root()
if thisRoot == nil {
logger.LogIf(GlobalContext, errors.New("replaceRootChild: Root of current not found"))
return
}
thisRootHash := d.rootHash()
otherRootHash := other.rootHash()
if thisRootHash == otherRootHash {
logger.LogIf(GlobalContext, errors.New("replaceRootChild: Root of child matches root of destination"))
return
}
d.deleteRecursive(other.rootHash())
d.copyWithChildren(&other, other.rootHash(), &thisRootHash)
}
// keepBuckets will keep only the buckets specified specified by delete all others.
func (d *dataUsageCache) keepBuckets(b []BucketInfo) {
lu := make(map[dataUsageHash]struct{})
for _, v := range b {
lu[hashPath(v.Name)] = struct{}{}
}
d.keepRootChildren(lu)
}
// keepRootChildren will keep the root children specified by delete all others.
func (d *dataUsageCache) keepRootChildren(list map[dataUsageHash]struct{}) {
if d.root() == nil {
return
}
rh := d.rootHash()
for k := range d.Cache {
h := dataUsageHash(k)
if h == rh {
continue
}
if _, ok := list[h]; !ok {
delete(d.Cache, k)
d.deleteRecursive(h)
}
}
}
// dui converts the flattened version of the path to DataUsageInfo.
// As a side effect d will be flattened, use a clone if this is not ok.
func (d *dataUsageCache) dui(path string, buckets []BucketInfo) DataUsageInfo {
@ -135,14 +211,14 @@ func (d *dataUsageCache) dui(path string, buckets []BucketInfo) DataUsageInfo {
func (d *dataUsageCache) replace(path, parent string, e dataUsageEntry) {
hash := hashPath(path)
if d.Cache == nil {
d.Cache = make(map[dataUsageHash]dataUsageEntry, 100)
d.Cache = make(map[string]dataUsageEntry, 100)
}
d.Cache[hash] = e
d.Cache[hash.Key()] = e
if parent != "" {
phash := hashPath(parent)
p := d.Cache[phash]
p := d.Cache[phash.Key()]
p.addChild(hash)
d.Cache[phash] = p
d.Cache[phash.Key()] = p
}
}
@ -151,13 +227,13 @@ func (d *dataUsageCache) replace(path, parent string, e dataUsageEntry) {
// If the parent does not exist, it will be added.
func (d *dataUsageCache) replaceHashed(hash dataUsageHash, parent *dataUsageHash, e dataUsageEntry) {
if d.Cache == nil {
d.Cache = make(map[dataUsageHash]dataUsageEntry, 100)
d.Cache = make(map[string]dataUsageEntry, 100)
}
d.Cache[hash] = e
d.Cache[hash.Key()] = e
if parent != nil {
p := d.Cache[*parent]
p := d.Cache[parent.Key()]
p.addChild(hash)
d.Cache[*parent] = p
d.Cache[parent.Key()] = p
}
}
@ -166,24 +242,24 @@ func (d *dataUsageCache) replaceHashed(hash dataUsageHash, parent *dataUsageHash
// If the parent does not exist, it will be added.
func (d *dataUsageCache) copyWithChildren(src *dataUsageCache, hash dataUsageHash, parent *dataUsageHash) {
if d.Cache == nil {
d.Cache = make(map[dataUsageHash]dataUsageEntry, 100)
d.Cache = make(map[string]dataUsageEntry, 100)
}
e, ok := src.Cache[hash]
e, ok := src.Cache[hash.String()]
if !ok {
return
}
d.Cache[hash] = e
d.Cache[hash.Key()] = e
for ch := range e.Children {
if ch == hash {
if ch == hash.Key() {
logger.LogIf(GlobalContext, errors.New("dataUsageCache.copyWithChildren: Circular reference"))
return
}
d.copyWithChildren(src, ch, &hash)
d.copyWithChildren(src, dataUsageHash(ch), &hash)
}
if parent != nil {
p := d.Cache[*parent]
p := d.Cache[parent.Key()]
p.addChild(hash)
d.Cache[*parent] = p
d.Cache[parent.Key()] = p
}
}
@ -196,15 +272,14 @@ func (d *dataUsageCache) StringAll() string {
return strings.TrimSpace(s)
}
// insert the hash into dst.
// dst must be at least dataUsageHashLen bytes long.
func (h dataUsageHash) bytes(dst []byte) {
binary.LittleEndian.PutUint64(dst, uint64(h))
// String returns a human readable representation of the string.
func (h dataUsageHash) String() string {
return string(h)
}
// String returns a human readable representation of the string.
func (h dataUsageHash) String() string {
return fmt.Sprintf("%x", uint64(h))
func (h dataUsageHash) Key() string {
return string(h)
}
// flatten all children of the root into the root element and return it.
@ -270,13 +345,6 @@ func (d *dataUsageCache) sizeRecursive(path string) *dataUsageEntry {
return &flat
}
// dataUsageCache contains a cache of data usage entries.
//msgp:ignore dataUsageCache
type dataUsageCache struct {
Info dataUsageCacheInfo
Cache map[dataUsageHash]dataUsageEntry
}
// root returns the root of the cache.
func (d *dataUsageCache) root() *dataUsageEntry {
return d.find(d.Info.Name)
@ -291,7 +359,7 @@ func (d *dataUsageCache) rootHash() dataUsageHash {
func (d *dataUsageCache) clone() dataUsageCache {
clone := dataUsageCache{
Info: d.Info,
Cache: make(map[dataUsageHash]dataUsageEntry, len(d.Cache)),
Cache: make(map[string]dataUsageEntry, len(d.Cache)),
}
for k, v := range d.Cache {
clone.Cache[k] = v
@ -326,7 +394,7 @@ func (d *dataUsageCache) merge(other dataUsageCache) {
existing := d.Cache[key]
// If not found, merging simply adds.
existing.merge(flat)
d.replaceHashed(key, &eHash, existing)
d.replaceHashed(dataUsageHash(key), &eHash, existing)
}
}
@ -337,13 +405,13 @@ func (d *dataUsageCache) load(ctx context.Context, store ObjectLayer, name strin
var buf bytes.Buffer
err := store.GetObject(ctx, dataUsageBucket, name, 0, -1, &buf, "", ObjectOptions{})
if err != nil {
if !isErrObjectNotFound(err) && !isErrBucketNotFound(err) {
if !isErrObjectNotFound(err) && !isErrBucketNotFound(err) && !errors.Is(err, InsufficientReadQuorum{}) {
return toObjectErr(err, dataUsageBucket, name)
}
*d = dataUsageCache{}
return nil
}
err = d.deserialize(buf.Bytes())
err = d.deserialize(&buf)
if err != nil {
*d = dataUsageCache{}
logger.LogIf(ctx, err)
@ -374,89 +442,60 @@ func (d *dataUsageCache) save(ctx context.Context, store ObjectLayer, name strin
// dataUsageCacheVer indicates the cache version.
// Bumping the cache version will drop data from previous versions
// and write new data with the new version.
const dataUsageCacheVer = 1
const dataUsageCacheVer = 2
// serialize the contents of the cache.
func (d *dataUsageCache) serialize() []byte {
// Alloc pessimistically
// dataUsageCacheVer
due := dataUsageEntry{}
msgLen := 1
msgLen += d.Info.Msgsize()
// len(d.Cache)
msgLen += binary.MaxVarintLen64
// Hashes (one for key, assume 1 child/node)
msgLen += len(d.Cache) * dataUsageHashLen * 2
msgLen += len(d.Cache) * due.Msgsize()
// Create destination buffer...
dst := make([]byte, 0, msgLen)
var n int
tmp := make([]byte, 1024)
// byte: version.
// Prepend version and compress.
dst := make([]byte, 0, d.Msgsize()+1)
dst = append(dst, dataUsageCacheVer)
// Info...
dst, err := d.Info.MarshalMsg(dst)
buf := bytes.NewBuffer(dst)
enc, err := zstd.NewWriter(buf,
zstd.WithEncoderLevel(zstd.SpeedFastest),
zstd.WithWindowSize(1<<20),
zstd.WithEncoderConcurrency(2))
if err != nil {
panic(err)
logger.LogIf(GlobalContext, err)
return nil
}
n = binary.PutUvarint(tmp, uint64(len(d.Cache)))
dst = append(dst, tmp[:n]...)
for k, v := range d.Cache {
// Put key
binary.LittleEndian.PutUint64(tmp[:dataUsageHashLen], uint64(k))
dst = append(dst, tmp[:8]...)
tmp, err = v.MarshalMsg(tmp[:0])
if err != nil {
panic(err)
}
// key, value pairs.
dst = append(dst, tmp...)
mEnc := msgp.NewWriter(enc)
err = d.EncodeMsg(mEnc)
if err != nil {
logger.LogIf(GlobalContext, err)
return nil
}
return dst
mEnc.Flush()
err = enc.Close()
if err != nil {
logger.LogIf(GlobalContext, err)
return nil
}
return buf.Bytes()
}
// deserialize the supplied byte slice into the cache.
func (d *dataUsageCache) deserialize(b []byte) error {
if len(b) < 1 {
func (d *dataUsageCache) deserialize(r io.Reader) error {
var b [1]byte
n, _ := r.Read(b[:])
if n != 1 {
return io.ErrUnexpectedEOF
}
switch b[0] {
case 1:
return errors.New("cache version deprecated (will autoupdate)")
case dataUsageCacheVer:
default:
return fmt.Errorf("dataUsageCache: unknown version: %d", int(b[0]))
}
b = b[1:]
// Info...
b, err := d.Info.UnmarshalMsg(b)
// Zstd compressed.
dec, err := zstd.NewReader(r, zstd.WithDecoderConcurrency(2))
if err != nil {
return err
}
cacheLen, n := binary.Uvarint(b)
if n <= 0 {
return fmt.Errorf("dataUsageCache: reading cachelen, n <= 0 ")
}
b = b[n:]
d.Cache = make(map[dataUsageHash]dataUsageEntry, cacheLen)
defer dec.Close()
for i := 0; i < int(cacheLen); i++ {
if len(b) <= dataUsageHashLen {
return io.ErrUnexpectedEOF
}
k := binary.LittleEndian.Uint64(b[:dataUsageHashLen])
b = b[dataUsageHashLen:]
var v dataUsageEntry
b, err = v.UnmarshalMsg(b)
if err != nil {
return err
}
d.Cache[dataUsageHash(k)] = v
}
return nil
return d.DecodeMsg(msgp.NewReader(dec))
}
// Trim this from start+end of hashes.
@ -473,88 +512,91 @@ func hashPath(data string) dataUsageHash {
if data != dataUsageRoot {
data = strings.Trim(data, hashPathCutSet)
}
data = path.Clean(data)
return dataUsageHash(xxhash.Sum64String(data))
return dataUsageHash(path.Clean(data))
}
//msgp:ignore dataUsageEntryInfo
type dataUsageHashMap map[dataUsageHash]struct{}
//msgp:ignore dataUsageHashMap
type dataUsageHashMap map[string]struct{}
// MarshalMsg implements msgp.Marshaler
func (d dataUsageHashMap) MarshalMsg(b []byte) (o []byte, err error) {
o = msgp.Require(b, d.Msgsize())
// Write bin header manually
const mbin32 uint8 = 0xc6
sz := uint32(len(d)) * dataUsageHashLen
o = append(o, mbin32, byte(sz>>24), byte(sz>>16), byte(sz>>8), byte(sz))
var tmp [dataUsageHashLen]byte
for k := range d {
binary.LittleEndian.PutUint64(tmp[:], uint64(k))
o = append(o, tmp[:]...)
// DecodeMsg implements msgp.Decodable
func (z *dataUsageHashMap) DecodeMsg(dc *msgp.Reader) (err error) {
var zb0002 uint32
zb0002, err = dc.ReadArrayHeader()
if err != nil {
err = msgp.WrapError(err)
return
}
*z = make(dataUsageHashMap, zb0002)
for i := uint32(0); i < zb0002; i++ {
{
var zb0003 string
zb0003, err = dc.ReadString()
if err != nil {
err = msgp.WrapError(err)
return
}
(*z)[zb0003] = struct{}{}
}
}
return
}
// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (d dataUsageHashMap) Msgsize() (s int) {
s = 5 + len(d)*dataUsageHashLen
// EncodeMsg implements msgp.Encodable
func (z dataUsageHashMap) EncodeMsg(en *msgp.Writer) (err error) {
err = en.WriteArrayHeader(uint32(len(z)))
if err != nil {
err = msgp.WrapError(err)
return
}
for zb0004 := range z {
err = en.WriteString(zb0004)
if err != nil {
err = msgp.WrapError(err, zb0004)
return
}
}
return
}
// MarshalMsg implements msgp.Marshaler
func (z dataUsageHashMap) MarshalMsg(b []byte) (o []byte, err error) {
o = msgp.Require(b, z.Msgsize())
o = msgp.AppendArrayHeader(o, uint32(len(z)))
for zb0004 := range z {
o = msgp.AppendString(o, zb0004)
}
return
}
// UnmarshalMsg implements msgp.Unmarshaler
func (d *dataUsageHashMap) UnmarshalMsg(bts []byte) (o []byte, err error) {
var hashes []byte
hashes, bts, err = msgp.ReadBytesZC(bts)
func (z *dataUsageHashMap) UnmarshalMsg(bts []byte) (o []byte, err error) {
var zb0002 uint32
zb0002, bts, err = msgp.ReadArrayHeaderBytes(bts)
if err != nil {
err = msgp.WrapError(err, "dataUsageHashMap")
err = msgp.WrapError(err)
return
}
var dst = make(dataUsageHashMap, len(hashes)/dataUsageHashLen)
for len(hashes) >= dataUsageHashLen {
dst[dataUsageHash(binary.LittleEndian.Uint64(hashes[:dataUsageHashLen]))] = struct{}{}
hashes = hashes[dataUsageHashLen:]
*z = make(dataUsageHashMap, zb0002)
for i := uint32(0); i < zb0002; i++ {
{
var zb0003 string
zb0003, bts, err = msgp.ReadStringBytes(bts)
if err != nil {
err = msgp.WrapError(err)
return
}
(*z)[zb0003] = struct{}{}
}
}
*d = dst
o = bts
return
}
func (d *dataUsageHashMap) DecodeMsg(dc *msgp.Reader) (err error) {
var zb0001 uint32
zb0001, err = dc.ReadBytesHeader()
if err != nil {
err = msgp.WrapError(err)
return
// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z dataUsageHashMap) Msgsize() (s int) {
s = msgp.ArrayHeaderSize
for zb0004 := range z {
s += msgp.StringPrefixSize + len(zb0004)
}
var dst = make(dataUsageHashMap, zb0001)
var tmp [8]byte
for i := uint32(0); i < zb0001; i++ {
_, err = io.ReadFull(dc, tmp[:])
if err != nil {
err = msgp.WrapError(err, "dataUsageHashMap")
return
}
dst[dataUsageHash(binary.LittleEndian.Uint64(tmp[:]))] = struct{}{}
}
return nil
}
func (d dataUsageHashMap) EncodeMsg(en *msgp.Writer) (err error) {
err = en.WriteBytesHeader(uint32(len(d)) * dataUsageHashLen)
if err != nil {
err = msgp.WrapError(err)
return
}
var tmp [dataUsageHashLen]byte
for k := range d {
binary.LittleEndian.PutUint64(tmp[:], uint64(k))
_, err = en.Write(tmp[:])
if err != nil {
err = msgp.WrapError(err)
return
}
}
return nil
return
}

220
cmd/data-usage-cache_gen.go
View File

@ -6,6 +6,212 @@ import (
"github.com/tinylib/msgp/msgp"
)
// DecodeMsg implements msgp.Decodable
func (z *dataUsageCache) DecodeMsg(dc *msgp.Reader) (err error) {
var field []byte
_ = field
var zb0001 uint32
zb0001, err = dc.ReadMapHeader()
if err != nil {
err = msgp.WrapError(err)
return
}
for zb0001 > 0 {
zb0001--
field, err = dc.ReadMapKeyPtr()
if err != nil {
err = msgp.WrapError(err)
return
}
switch msgp.UnsafeString(field) {
case "Info":
err = z.Info.DecodeMsg(dc)
if err != nil {
err = msgp.WrapError(err, "Info")
return
}
case "Cache":
var zb0002 uint32
zb0002, err = dc.ReadMapHeader()
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
if z.Cache == nil {
z.Cache = make(map[string]dataUsageEntry, zb0002)
} else if len(z.Cache) > 0 {
for key := range z.Cache {
delete(z.Cache, key)
}
}
for zb0002 > 0 {
zb0002--
var za0001 string
var za0002 dataUsageEntry
za0001, err = dc.ReadString()
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
err = za0002.DecodeMsg(dc)
if err != nil {
err = msgp.WrapError(err, "Cache", za0001)
return
}
z.Cache[za0001] = za0002
}
default:
err = dc.Skip()
if err != nil {
err = msgp.WrapError(err)
return
}
}
}
return
}
// EncodeMsg implements msgp.Encodable
func (z *dataUsageCache) EncodeMsg(en *msgp.Writer) (err error) {
// map header, size 2
// write "Info"
err = en.Append(0x82, 0xa4, 0x49, 0x6e, 0x66, 0x6f)
if err != nil {
return
}
err = z.Info.EncodeMsg(en)
if err != nil {
err = msgp.WrapError(err, "Info")
return
}
// write "Cache"
err = en.Append(0xa5, 0x43, 0x61, 0x63, 0x68, 0x65)
if err != nil {
return
}
err = en.WriteMapHeader(uint32(len(z.Cache)))
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
for za0001, za0002 := range z.Cache {
err = en.WriteString(za0001)
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
err = za0002.EncodeMsg(en)
if err != nil {
err = msgp.WrapError(err, "Cache", za0001)
return
}
}
return
}
// MarshalMsg implements msgp.Marshaler
func (z *dataUsageCache) MarshalMsg(b []byte) (o []byte, err error) {
o = msgp.Require(b, z.Msgsize())
// map header, size 2
// string "Info"
o = append(o, 0x82, 0xa4, 0x49, 0x6e, 0x66, 0x6f)
o, err = z.Info.MarshalMsg(o)
if err != nil {
err = msgp.WrapError(err, "Info")
return
}
// string "Cache"
o = append(o, 0xa5, 0x43, 0x61, 0x63, 0x68, 0x65)
o = msgp.AppendMapHeader(o, uint32(len(z.Cache)))
for za0001, za0002 := range z.Cache {
o = msgp.AppendString(o, za0001)
o, err = za0002.MarshalMsg(o)
if err != nil {
err = msgp.WrapError(err, "Cache", za0001)
return
}
}
return
}
// UnmarshalMsg implements msgp.Unmarshaler
func (z *dataUsageCache) UnmarshalMsg(bts []byte) (o []byte, err error) {
var field []byte
_ = field
var zb0001 uint32
zb0001, bts, err = msgp.ReadMapHeaderBytes(bts)
if err != nil {
err = msgp.WrapError(err)
return
}
for zb0001 > 0 {
zb0001--
field, bts, err = msgp.ReadMapKeyZC(bts)
if err != nil {
err = msgp.WrapError(err)
return
}
switch msgp.UnsafeString(field) {
case "Info":
bts, err = z.Info.UnmarshalMsg(bts)
if err != nil {
err = msgp.WrapError(err, "Info")
return
}
case "Cache":
var zb0002 uint32
zb0002, bts, err = msgp.ReadMapHeaderBytes(bts)
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
if z.Cache == nil {
z.Cache = make(map[string]dataUsageEntry, zb0002)
} else if len(z.Cache) > 0 {
for key := range z.Cache {
delete(z.Cache, key)
}
}
for zb0002 > 0 {
var za0001 string
var za0002 dataUsageEntry
zb0002--
za0001, bts, err = msgp.ReadStringBytes(bts)
if err != nil {
err = msgp.WrapError(err, "Cache")
return
}
bts, err = za0002.UnmarshalMsg(bts)
if err != nil {
err = msgp.WrapError(err, "Cache", za0001)
return
}
z.Cache[za0001] = za0002
}
default:
bts, err = msgp.Skip(bts)
if err != nil {
err = msgp.WrapError(err)
return
}
}
}
o = bts
return
}
// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z *dataUsageCache) Msgsize() (s int) {
s = 1 + 5 + z.Info.Msgsize() + 6 + msgp.MapHeaderSize
if z.Cache != nil {
for za0001, za0002 := range z.Cache {
_ = za0002
s += msgp.StringPrefixSize + len(za0001) + za0002.Msgsize()
}
}
return
}
// DecodeMsg implements msgp.Decodable
func (z *dataUsageCacheInfo) DecodeMsg(dc *msgp.Reader) (err error) {
var field []byte
@ -373,8 +579,8 @@ func (z *dataUsageEntry) Msgsize() (s int) {
// DecodeMsg implements msgp.Decodable
func (z *dataUsageHash) DecodeMsg(dc *msgp.Reader) (err error) {
{
var zb0001 uint64
zb0001, err = dc.ReadUint64()
var zb0001 string
zb0001, err = dc.ReadString()
if err != nil {
err = msgp.WrapError(err)
return
@ -386,7 +592,7 @@ func (z *dataUsageHash) DecodeMsg(dc *msgp.Reader) (err error) {
// EncodeMsg implements msgp.Encodable
func (z dataUsageHash) EncodeMsg(en *msgp.Writer) (err error) {
err = en.WriteUint64(uint64(z))
err = en.WriteString(string(z))
if err != nil {
err = msgp.WrapError(err)
return
@ -397,15 +603,15 @@ func (z dataUsageHash) EncodeMsg(en *msgp.Writer) (err error) {
// MarshalMsg implements msgp.Marshaler
func (z dataUsageHash) MarshalMsg(b []byte) (o []byte, err error) {
o = msgp.Require(b, z.Msgsize())
o = msgp.AppendUint64(o, uint64(z))
o = msgp.AppendString(o, string(z))
return
}
// UnmarshalMsg implements msgp.Unmarshaler
func (z *dataUsageHash) UnmarshalMsg(bts []byte) (o []byte, err error) {
{
var zb0001 uint64
zb0001, bts, err = msgp.ReadUint64Bytes(bts)
var zb0001 string
zb0001, bts, err = msgp.ReadStringBytes(bts)
if err != nil {
err = msgp.WrapError(err)
return
@ -418,7 +624,7 @@ func (z *dataUsageHash) UnmarshalMsg(bts []byte) (o []byte, err error) {
// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z dataUsageHash) Msgsize() (s int) {
s = msgp.Uint64Size
s = msgp.StringPrefixSize + len(string(z))
return
}

113
cmd/data-usage-cache_gen_test.go
View File

@ -9,6 +9,119 @@ import (
"github.com/tinylib/msgp/msgp"
)
func TestMarshalUnmarshaldataUsageCache(t *testing.T) {
v := dataUsageCache{}
bts, err := v.MarshalMsg(nil)
if err != nil {
t.Fatal(err)
}
left, err := v.UnmarshalMsg(bts)
if err != nil {
t.Fatal(err)
}
if len(left) > 0 {
t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
}
left, err = msgp.Skip(bts)
if err != nil {
t.Fatal(err)
}
if len(left) > 0 {
t.Errorf("%d bytes left over after Skip(): %q", len(left), left)
}
}
func BenchmarkMarshalMsgdataUsageCache(b *testing.B) {
v := dataUsageCache{}
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
v.MarshalMsg(nil)
}
}
func BenchmarkAppendMsgdataUsageCache(b *testing.B) {
v := dataUsageCache{}
bts := make([]byte, 0, v.Msgsize())
bts, _ = v.MarshalMsg(bts[0:0])
b.SetBytes(int64(len(bts)))
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
bts, _ = v.MarshalMsg(bts[0:0])
}
}
func BenchmarkUnmarshaldataUsageCache(b *testing.B) {
v := dataUsageCache{}
bts, _ := v.MarshalMsg(nil)
b.ReportAllocs()
b.SetBytes(int64(len(bts)))
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, err := v.UnmarshalMsg(bts)
if err != nil {
b.Fatal(err)
}
}
}
func TestEncodeDecodedataUsageCache(t *testing.T) {
v := dataUsageCache{}
var buf bytes.Buffer
msgp.Encode(&buf, &v)
m := v.Msgsize()
if buf.Len() > m {
t.Log("WARNING: TestEncodeDecodedataUsageCache Msgsize() is inaccurate")
}
vn := dataUsageCache{}
err := msgp.Decode(&buf, &vn)
if err != nil {
t.Error(err)
}
buf.Reset()
msgp.Encode(&buf, &v)
err = msgp.NewReader(&buf).Skip()
if err != nil {
t.Error(err)
}
}
func BenchmarkEncodedataUsageCache(b *testing.B) {
v := dataUsageCache{}
var buf bytes.Buffer
msgp.Encode(&buf, &v)
b.SetBytes(int64(buf.Len()))
en := msgp.NewWriter(msgp.Nowhere)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
v.EncodeMsg(en)
}
en.Flush()
}
func BenchmarkDecodedataUsageCache(b *testing.B) {
v := dataUsageCache{}
var buf bytes.Buffer
msgp.Encode(&buf, &v)
b.SetBytes(int64(buf.Len()))
rd := msgp.NewEndlessReader(buf.Bytes(), b)
dc := msgp.NewReader(rd)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
err := v.DecodeMsg(dc)
if err != nil {
b.Fatal(err)
}
}
}
func TestMarshalUnmarshaldataUsageCacheInfo(t *testing.T) {
v := dataUsageCacheInfo{}
bts, err := v.MarshalMsg(nil)

432
cmd/data-usage.go
View File

@ -19,21 +19,11 @@ package cmd
import (
"bytes"
"context"
"encoding/binary"
"encoding/json"
"errors"
"os"
"path"
"strconv"
"time"
jsoniter "github.com/json-iterator/go"
"github.com/minio/minio/cmd/config"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/pkg/color"
"github.com/minio/minio/pkg/env"
"github.com/minio/minio/pkg/hash"
"github.com/willf/bloom"
)
const (
@ -44,76 +34,11 @@ const (
dataUsageRoot = SlashSeparator
dataUsageBucket = minioMetaBucket + SlashSeparator + bucketMetaPrefix
dataUsageObjName = ".usage.json"
dataUsageCacheName = ".usage-cache.bin"
dataUsageBloomName = ".bloomcycle.bin"
dataUsageSleepPerFolder = 1 * time.Millisecond
dataUsageSleepDefMult = 10.0
dataUsageUpdateDirCycles = 16
dataUsageStartDelay = 5 * time.Minute // Time to wait on startup and between cycles.
dataUsageObjName = ".usage.json"
dataUsageCacheName = ".usage-cache.bin"
dataUsageBloomName = ".bloomcycle.bin"
)
// initDataUsageStats will start the crawler unless disabled.
func initDataUsageStats(ctx context.Context, objAPI ObjectLayer) {
if env.Get(envDataUsageCrawlConf, config.EnableOn) == config.EnableOn {
go runDataUsageInfo(ctx, objAPI)
}
}
func runDataUsageInfo(ctx context.Context, objAPI ObjectLayer) {
// Load current bloom cycle
nextBloomCycle := intDataUpdateTracker.current() + 1
var buf bytes.Buffer
err := objAPI.GetObject(ctx, dataUsageBucket, dataUsageBloomName, 0, -1, &buf, "", ObjectOptions{})
if err != nil {
if !isErrObjectNotFound(err) && !isErrBucketNotFound(err) {
logger.LogIf(ctx, err)
}
} else {
if buf.Len() == 8 {
nextBloomCycle = binary.LittleEndian.Uint64(buf.Bytes())
}
}
for {
select {
case <-ctx.Done():
return
case <-time.NewTimer(dataUsageStartDelay).C:
// Wait before starting next cycle and wait on startup.
results := make(chan DataUsageInfo, 1)
go storeDataUsageInBackend(ctx, objAPI, results)
bf, err := globalNotificationSys.updateBloomFilter(ctx, nextBloomCycle)
logger.LogIf(ctx, err)
err = objAPI.CrawlAndGetDataUsage(ctx, bf, results)
close(results)
logger.LogIf(ctx, err)
if err == nil {
// Store new cycle...
nextBloomCycle++
if nextBloomCycle%dataUpdateTrackerResetEvery == 0 {
if intDataUpdateTracker.debug {
logger.Info(color.Green("runDataUsageInfo:") + " Resetting bloom filter for next runs.")
}
nextBloomCycle++
}
var tmp [8]byte
binary.LittleEndian.PutUint64(tmp[:], nextBloomCycle)
r, err := hash.NewReader(bytes.NewReader(tmp[:]), int64(len(tmp)), "", "", int64(len(tmp)), false)
if err != nil {
logger.LogIf(ctx, err)
continue
}
_, err = objAPI.PutObject(ctx, dataUsageBucket, dataUsageBloomName, NewPutObjReader(r, nil, nil), ObjectOptions{})
if !isErrBucketNotFound(err) {
logger.LogIf(ctx, err)
}
}
}
}
}
// storeDataUsageInBackend will store all objects sent on the gui channel until closed.
func storeDataUsageInBackend(ctx context.Context, objAPI ObjectLayer, gui <-chan DataUsageInfo) {
for dataUsageInfo := range gui {
@ -172,354 +97,3 @@ func loadDataUsageFromBackend(ctx context.Context, objAPI ObjectLayer) (DataUsag
return dataUsageInfo, nil
}
// Item represents each file while walking.
type Item struct {
Path string
Typ os.FileMode
}
type getSizeFn func(item Item) (int64, error)
type cachedFolder struct {
name string
parent *dataUsageHash
}
type folderScanner struct {
root string
getSize getSizeFn
oldCache dataUsageCache
newCache dataUsageCache
withFilter *bloomFilter
waitForLowActiveIO func()
dataUsageCrawlMult float64
dataUsageCrawlDebug bool
newFolders []cachedFolder
existingFolders []cachedFolder
}
// sleepDuration multiplies the duration d by x and sleeps if is more than 100 micro seconds.
// sleep is limited to max 1 second.
func sleepDuration(d time.Duration, x float64) {
// Don't sleep for really small amount of time
if d := time.Duration(float64(d) * x); d > time.Microsecond*100 {
if d > time.Second {
d = time.Second
}
time.Sleep(d)
}
}
// scanQueuedLevels will scan the provided folders.
// Files found in the folders will be added to f.newCache.
// If final is provided folders will be put into f.newFolders or f.existingFolders.
// If final is not provided the folders found are returned from the function.
func (f *folderScanner) scanQueuedLevels(ctx context.Context, folders []cachedFolder, final bool) ([]cachedFolder, error) {
var nextFolders []cachedFolder
done := ctx.Done()
for _, folder := range folders {
select {
case <-done:
return nil, ctx.Err()
default:
}
thisHash := hashPath(folder.name)
if _, ok := f.oldCache.Cache[thisHash]; f.withFilter != nil && ok {
// If folder isn't in filter and we have data, skip it completely.
if folder.name != dataUsageRoot && !f.withFilter.containsDir(folder.name) {
f.newCache.copyWithChildren(&f.oldCache, thisHash, folder.parent)
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" Skipping non-updated folder: %v", folder.name)
}
continue
}
}
f.waitForLowActiveIO()
sleepDuration(dataUsageSleepPerFolder, f.dataUsageCrawlMult)
cache := dataUsageEntry{}
err := readDirFn(path.Join(f.root, folder.name), func(entName string, typ os.FileMode) error {
// Parse
entName = path.Clean(path.Join(folder.name, entName))
bucket, _ := path2BucketObjectWithBasePath(f.root, entName)
if bucket == "" {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" no bucket (%s,%s)", f.root, entName)
}
return nil
}
if isReservedOrInvalidBucket(bucket, false) {
if f.dataUsageCrawlDebug {
logger.Info(color.Green("data-usage:")+" invalid bucket: %v, entry: %v", bucket, entName)
}
return nil
}
select {
case <-done:
return ctx.Err()
default:
}
if typ&os.ModeDir != 0 {
h := hashPath(entName)
_, exists := f.oldCache.Cache[h]
cache.addChildString(entName)
this := cachedFolder{name: entName, parent: &thisHash}
cache.addChild(h)
if final {
if exists {
f.existingFolders = append(f.existingFolders, this)
} else {
f.newFolders = append(f.newFolders, this)
}
} else {
nextFolders = append(nextFolders, this)
}
return nil
}
f.waitForLowActiveIO()
// Dynamic time delay.
t := UTCNow()
// Get file size, ignore errors.
size, err := f.getSize(Item{Path: path.Join(f.root, entName), Typ: typ})
sleepDuration(time.Since(t), f.dataUsageCrawlMult)
if err == errSkipFile || err == errFileNotFound {
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.Objects++
cache.ObjSizes.add(size)
return nil
})
if err != nil {
return nil, err
}
f.newCache.replaceHashed(thisHash, folder.parent, cache)
}
return nextFolders, nil
}
// deepScanFolder will deep scan a folder and return the size if no error occurs.
func (f *folderScanner) deepScanFolder(ctx context.Context, folder string) (*dataUsageEntry, error) {
var cache dataUsageEntry
done := ctx.Done()
var addDir func(entName string, typ os.FileMode) error
var dirStack = []string{f.root, folder}
addDir = func(entName string, typ os.FileMode) error {
select {
case <-done:
return ctx.Err()
default:
}
f.waitForLowActiveIO()
if typ&os.ModeDir != 0 {
dirStack = append(dirStack, entName)
err := readDirFn(path.Join(dirStack...), addDir)
dirStack = dirStack[:len(dirStack)-1]
sleepDuration(dataUsageSleepPerFolder, f.dataUsageCrawlMult)
return err
}
// Dynamic time delay.
t := UTCNow()
// Get file size, ignore errors.
dirStack = append(dirStack, entName)
fileName := path.Join(dirStack...)
dirStack = dirStack[:len(dirStack)-1]
size, err := f.getSize(Item{Path: fileName, Typ: typ})
// Don't sleep for really small amount of time
sleepDuration(time.Since(t), f.dataUsageCrawlMult)
if err == errSkipFile {
return nil
}
logger.LogIf(ctx, err)
cache.Size += size
cache.Objects++
cache.ObjSizes.add(size)
return nil
}
err := readDirFn(path.Join(dirStack...), addDir)
if err != nil {
return nil, err
}
return &cache, nil
}
// updateUsage will crawl the basepath+cache.Info.Name and return an updated cache.
// The returned cache will always be valid, but may not be updated from the existing.
// Before each operation waitForLowActiveIO is called which can be used to temporarily halt the crawler.
// If the supplied context is canceled the function will return at the first chance.
func updateUsage(ctx context.Context, basePath string, cache dataUsageCache, waitForLowActiveIO func(), getSize getSizeFn) (dataUsageCache, error) {
t := UTCNow()
dataUsageDebug := env.Get(envDataUsageCrawlDebug, config.EnableOff) == config.EnableOn
logPrefix := color.Green("data-usage: ")
logSuffix := color.Blue(" - %v + %v", basePath, cache.Info.Name)
if dataUsageDebug {
defer func() {
logger.Info(logPrefix+" Crawl time: %v"+logSuffix, time.Since(t))
}()
}
if cache.Info.Name == "" {
cache.Info.Name = dataUsageRoot
}
delayMult, err := strconv.ParseFloat(env.Get(envDataUsageCrawlDelay, "10.0"), 64)
if err != nil {
logger.LogIf(ctx, err)
delayMult = dataUsageSleepDefMult
}
s := folderScanner{
root: basePath,
getSize: getSize,
oldCache: cache,
newCache: dataUsageCache{Info: cache.Info},
waitForLowActiveIO: waitForLowActiveIO,
newFolders: nil,
existingFolders: nil,
dataUsageCrawlMult: delayMult,
dataUsageCrawlDebug: dataUsageDebug,
}
if len(cache.Info.BloomFilter) > 0 {
s.withFilter = &bloomFilter{BloomFilter: &bloom.BloomFilter{}}
_, err := s.withFilter.ReadFrom(bytes.NewBuffer(cache.Info.BloomFilter))
if err != nil {
logger.LogIf(ctx, err, logPrefix+"Error reading bloom filter")
s.withFilter = nil
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Start crawling. Bloom filter: %v"+logSuffix, s.withFilter != nil)
}
done := ctx.Done()
var flattenLevels = 3
// If we are scanning inside a bucket reduce depth by 1.
if cache.Info.Name != dataUsageRoot {
flattenLevels--
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Cycle: %v, Entries: %v"+logSuffix, cache.Info.NextCycle, len(cache.Cache))
}
// Always scan flattenLevels deep. Cache root is level 0.
todo := []cachedFolder{{name: cache.Info.Name}}
for i := 0; i < flattenLevels; i++ {
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Level %v, scanning %v directories."+logSuffix, i, len(todo))
}
select {
case <-done:
return cache, ctx.Err()
default:
}
var err error
todo, err = s.scanQueuedLevels(ctx, todo, i == flattenLevels-1)
if err != nil {
// No useful information...
return cache, err
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"New folders: %v"+logSuffix, s.newFolders)
}
// Add new folders first
for _, folder := range s.newFolders {
select {
case <-done:
return s.newCache, ctx.Err()
default:
}
du, err := s.deepScanFolder(ctx, folder.name)
if err != nil {
logger.LogIf(ctx, err)
continue
}
if du == nil {
logger.Info(logPrefix + "no disk usage provided" + logSuffix)
continue
}
s.newCache.replace(folder.name, "", *du)
// Add to parent manually
if folder.parent != nil {
parent := s.newCache.Cache[*folder.parent]
parent.addChildString(folder.name)
}
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Existing folders: %v"+logSuffix, len(s.existingFolders))
}
// Do selective scanning of existing folders.
for _, folder := range s.existingFolders {
select {
case <-done:
return s.newCache, ctx.Err()
default:
}
h := hashPath(folder.name)
if !h.mod(s.oldCache.Info.NextCycle, dataUsageUpdateDirCycles) {
s.newCache.replaceHashed(h, folder.parent, s.oldCache.Cache[h])
continue
}
if s.withFilter != nil {
// If folder isn't in filter, skip it completely.
if !s.withFilter.containsDir(folder.name) {
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Skipping non-updated folder: %v"+logSuffix, folder)
}
s.newCache.replaceHashed(h, folder.parent, s.oldCache.Cache[h])
continue
}
}
// Update on this cycle...
du, err := s.deepScanFolder(ctx, folder.name)
if err != nil {
logger.LogIf(ctx, err)
continue
}
if du == nil {
logger.LogIf(ctx, errors.New("data-usage: no disk usage provided"))
continue
}
s.newCache.replaceHashed(h, folder.parent, *du)
}
if s.dataUsageCrawlDebug {
logger.Info(logPrefix+"Finished crawl, %v entries"+logSuffix, len(s.newCache.Cache))
}
s.newCache.Info.LastUpdate = UTCNow()
s.newCache.Info.NextCycle++
return s.newCache, nil
}

99
cmd/data-usage_test.go
View File

@ -17,9 +17,12 @@
package cmd
import (
"bytes"
"context"
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"testing"
)
@ -34,6 +37,7 @@ func TestDataUsageUpdate(t *testing.T) {
if err != nil {
t.Skip(err)
}
const bucket = "bucket"
defer os.RemoveAll(base)
var files = []usageTestFile{
{name: "rootfile", size: 10000},
@ -45,9 +49,9 @@ func TestDataUsageUpdate(t *testing.T) {
{name: "dir1/dira/dirasub/dcfile", size: 1000000},
{name: "dir1/dira/dirasub/sublevel3/dccccfile", size: 10},
}
createUsageTestFiles(t, base, files)
createUsageTestFiles(t, base, bucket, files)
getSize := func(item Item) (i int64, err error) {
getSize := func(item crawlItem) (i int64, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
if err != nil {
@ -58,7 +62,7 @@ func TestDataUsageUpdate(t *testing.T) {
return 0, nil
}
got, err := updateUsage(context.Background(), base, dataUsageCache{}, func() {}, getSize)
got, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: bucket}}, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -105,16 +109,17 @@ func TestDataUsageUpdate(t *testing.T) {
oSizes: sizeHistogram{0: 1, 1: 3},
},
{
path: "/dir1/dira",
size: 300000,
objs: 2,
oSizes: sizeHistogram{0: 0, 1: 2},
path: "/dir1",
size: 2000,
objs: 1,
oSizes: sizeHistogram{0: 0, 1: 1},
},
{
// Children are flattened
path: "/dir1/dira/",
size: 300000,
objs: 2,
oSizes: sizeHistogram{0: 0, 1: 2},
size: 1300010,
objs: 4,
oSizes: sizeHistogram{0: 1, 1: 3},
},
{
path: "/nonexistying",
@ -123,8 +128,9 @@ func TestDataUsageUpdate(t *testing.T) {
}
for _, w := range want {
t.Run(w.path, func(t *testing.T) {
e := got.find(w.path)
p := path.Join(bucket, w.path)
t.Run(p, func(t *testing.T) {
e := got.find(p)
if w.isNil {
if e != nil {
t.Error("want nil, got", e)
@ -134,6 +140,7 @@ func TestDataUsageUpdate(t *testing.T) {
if e == nil {
t.Fatal("got nil result")
}
t.Log(e.Children)
if w.flatten {
*e = got.flatten(*e)
}
@ -175,8 +182,8 @@ func TestDataUsageUpdate(t *testing.T) {
size: 1000,
},
}
createUsageTestFiles(t, base, files)
got, err = updateUsage(context.Background(), base, got, func() {}, getSize)
createUsageTestFiles(t, base, bucket, files)
got, err = crawlDataFolder(context.Background(), base, got, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -222,7 +229,7 @@ func TestDataUsageUpdate(t *testing.T) {
for _, w := range want {
t.Run(w.path, func(t *testing.T) {
e := got.find(w.path)
e := got.find(path.Join(bucket, w.path))
if w.isNil {
if e != nil {
t.Error("want nil, got", e)
@ -233,6 +240,7 @@ func TestDataUsageUpdate(t *testing.T) {
t.Fatal("got nil result")
}
if w.flatten {
t.Log(e.Children)
*e = got.flatten(*e)
}
if e.Size != int64(w.size) {
@ -254,14 +262,14 @@ func TestDataUsageUpdate(t *testing.T) {
},
}
createUsageTestFiles(t, base, files)
err = os.RemoveAll(filepath.Join(base, "dir1/dira/dirasub/dcfile"))
createUsageTestFiles(t, base, bucket, files)
err = os.RemoveAll(filepath.Join(base, bucket, "dir1/dira/dirasub/dcfile"))
if err != nil {
t.Fatal(err)
}
// Changed dir must be picked up in this many cycles.
for i := 0; i < dataUsageUpdateDirCycles; i++ {
got, err = updateUsage(context.Background(), base, got, func() {}, getSize)
got, err = crawlDataFolder(context.Background(), base, got, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -291,8 +299,9 @@ func TestDataUsageUpdate(t *testing.T) {
}
for _, w := range want {
t.Run(w.path, func(t *testing.T) {
e := got.find(w.path)
p := path.Join(bucket, w.path)
t.Run(p, func(t *testing.T) {
e := got.find(p)
if w.isNil {
if e != nil {
t.Error("want nil, got", e)
@ -335,9 +344,9 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
{name: "bucket/dir1/dira/dirasub/dcfile", size: 1000000},
{name: "bucket/dir1/dira/dirasub/sublevel3/dccccfile", size: 10},
}
createUsageTestFiles(t, base, files)
createUsageTestFiles(t, base, "", files)
getSize := func(item Item) (i int64, err error) {
getSize := func(item crawlItem) (i int64, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
if err != nil {
@ -347,7 +356,7 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
}
return 0, nil
}
got, err := updateUsage(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: "bucket"}}, func() {}, getSize)
got, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: "bucket"}}, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -449,8 +458,8 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
size: 1000,
},
}
createUsageTestFiles(t, base, files)
got, err = updateUsage(context.Background(), base, got, func() {}, getSize)
createUsageTestFiles(t, base, "", files)
got, err = crawlDataFolder(context.Background(), base, got, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -526,14 +535,14 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
},
}
createUsageTestFiles(t, base, files)
createUsageTestFiles(t, base, "", files)
err = os.RemoveAll(filepath.Join(base, "bucket/dir1/dira/dirasub/dcfile"))
if err != nil {
t.Fatal(err)
}
// Changed dir must be picked up in this many cycles.
for i := 0; i < dataUsageUpdateDirCycles; i++ {
got, err = updateUsage(context.Background(), base, got, func() {}, getSize)
got, err = crawlDataFolder(context.Background(), base, got, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
@ -588,13 +597,13 @@ func TestDataUsageUpdatePrefix(t *testing.T) {
}
}
func createUsageTestFiles(t *testing.T, base string, files []usageTestFile) {
func createUsageTestFiles(t *testing.T, base, bucket string, files []usageTestFile) {
for _, f := range files {
err := os.MkdirAll(filepath.Dir(filepath.Join(base, f.name)), os.ModePerm)
err := os.MkdirAll(filepath.Dir(filepath.Join(base, bucket, f.name)), os.ModePerm)
if err != nil {
t.Fatal(err)
}
err = ioutil.WriteFile(filepath.Join(base, f.name), make([]byte, f.size), os.ModePerm)
err = ioutil.WriteFile(filepath.Join(base, bucket, f.name), make([]byte, f.size), os.ModePerm)
if err != nil {
t.Fatal(err)
}
@ -606,20 +615,28 @@ func TestDataUsageCacheSerialize(t *testing.T) {
if err != nil {
t.Skip(err)
}
const bucket = "abucket"
defer os.RemoveAll(base)
var files = []usageTestFile{
{name: "rootfile", size: 10000},
{name: "rootfile2", size: 10000},
{name: "dir1/d1file", size: 2000},
{name: "dir2/d2file", size: 300},
{name: "dir2/d2file2", size: 300},
{name: "dir2/d2file3/", size: 300},
{name: "dir2/d2file4/", size: 300},
{name: "dir2/d2file5", size: 300},
{name: "dir1/dira/dafile", size: 100000},
{name: "dir1/dira/dbfile", size: 200000},
{name: "dir1/dira/dirasub/dcfile", size: 1000000},
{name: "dir1/dira/dirasub/sublevel3/dccccfile", size: 10},
{name: "dir1/dira/dirasub/sublevel3/dccccfile20", size: 20},
{name: "dir1/dira/dirasub/sublevel3/dccccfile30", size: 30},
{name: "dir1/dira/dirasub/sublevel3/dccccfile40", size: 40},
}
createUsageTestFiles(t, base, files)
createUsageTestFiles(t, base, bucket, files)
getSize := func(item Item) (i int64, err error) {
getSize := func(item crawlItem) (i int64, err error) {
if item.Typ&os.ModeDir == 0 {
s, err := os.Stat(item.Path)
if err != nil {
@ -629,23 +646,33 @@ func TestDataUsageCacheSerialize(t *testing.T) {
}
return 0, nil
}
want, err := updateUsage(context.Background(), base, dataUsageCache{}, func() {}, getSize)
want, err := crawlDataFolder(context.Background(), base, dataUsageCache{Info: dataUsageCacheInfo{Name: bucket}}, func() {}, getSize)
if err != nil {
t.Fatal(err)
}
b := want.serialize()
var got dataUsageCache
err = got.deserialize(b)
err = got.deserialize(bytes.NewBuffer(b))
if err != nil {
t.Fatal(err)
}
t.Log("serialized size:", len(b), "bytes")
if got.Info.LastUpdate.IsZero() {
t.Error("lastupdate not set")
}
if !want.Info.LastUpdate.Equal(got.Info.LastUpdate) {
t.Fatalf("deserialize mismatch\nwant: %+v\ngot: %+v", want, got)
t.Fatalf("deserialize LastUpdate mismatch\nwant: %+v\ngot: %+v", want, got)
}
if len(want.Cache) != len(got.Cache) {
t.Errorf("deserialize mismatch length\nwant: %+v\ngot: %+v", len(want.Cache), len(got.Cache))
}
for wkey, wval := range want.Cache {
gotv := got.Cache[wkey]
if fmt.Sprint(gotv) != fmt.Sprint(wval) {
t.Errorf("deserialize mismatch, key %v\nwant: %+v\ngot: %+v", wkey, wval, gotv)
}
}
}

137
cmd/fs-v1.go
View File

@ -19,7 +19,6 @@ package cmd
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
@ -239,66 +238,123 @@ func (fs *FSObjects) waitForLowActiveIO() {
// CrawlAndGetDataUsage returns data usage stats of the current FS deployment
func (fs *FSObjects) CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error {
// Load bucket totals
var oldCache dataUsageCache
err := oldCache.load(ctx, fs, dataUsageCacheName)
var totalCache dataUsageCache
err := totalCache.load(ctx, fs, dataUsageCacheName)
if err != nil {
return err
}
if oldCache.Info.Name == "" {
oldCache.Info.Name = dataUsageRoot
}
totalCache.Info.Name = dataUsageRoot
buckets, err := fs.ListBuckets(ctx)
if err != nil {
return err
}
oldCache.Info.BloomFilter = nil
totalCache.Info.BloomFilter = nil
if bf != nil {
oldCache.Info.BloomFilter = bf.bytes()
totalCache.Info.BloomFilter = bf.bytes()
}
if false && intDataUpdateTracker.debug {
b, _ := json.MarshalIndent(bf, "", " ")
logger.Info("Bloom filter: %v", string(b))
// Clear totals.
var root dataUsageEntry
if r := totalCache.root(); r != nil {
root.Children = r.Children
}
cache, err := updateUsage(ctx, fs.fsPath, oldCache, fs.waitForLowActiveIO, func(item Item) (int64, error) {
bucket, object := path2BucketObject(strings.TrimPrefix(item.Path, fs.fsPath))
totalCache.replace(dataUsageRoot, "", root)
// Delete all buckets that does not exist anymore.
totalCache.keepBuckets(buckets)
for _, b := range buckets {
// Load bucket cache.
var bCache dataUsageCache
err := bCache.load(ctx, fs, path.Join(b.Name, dataUsageCacheName))
if err != nil {
return err
}
if bCache.Info.Name == "" {
bCache.Info.Name = b.Name
}
bCache.Info.BloomFilter = totalCache.Info.BloomFilter
cache, err := fs.crawlBucket(ctx, b.Name, bCache)
select {
case <-ctx.Done():
return ctx.Err()
default:
}
logger.LogIf(ctx, err)
cache.Info.BloomFilter = nil
if cache.Info.LastUpdate.After(bCache.Info.LastUpdate) {
if intDataUpdateTracker.debug {
logger.Info(color.Green("CrawlAndGetDataUsage:")+" Saving bucket %q cache with %d entries", b.Name, len(cache.Cache))
}
logger.LogIf(ctx, cache.save(ctx, fs, path.Join(b.Name, dataUsageCacheName)))
}
// Merge, save and send update.
// We do it even if unchanged.
cl := cache.clone()
entry := cl.flatten(*cl.root())
totalCache.replace(cl.Info.Name, dataUsageRoot, entry)
if intDataUpdateTracker.debug {
logger.Info(color.Green("CrawlAndGetDataUsage:")+" Saving totals cache with %d entries", len(totalCache.Cache))
}
logger.LogIf(ctx, totalCache.save(ctx, fs, dataUsageCacheName))
cloned := totalCache.clone()
updates <- cloned.dui(dataUsageRoot, buckets)
}
return nil
}
// crawlBucket crawls a single bucket in FS mode.
// The updated cache for the bucket is returned.
// A partially updated bucket may be returned.
func (fs *FSObjects) crawlBucket(ctx context.Context, bucket string, cache dataUsageCache) (dataUsageCache, error) {
// Get bucket policy
// Check if the current bucket has a configured lifecycle policy
lc, err := globalLifecycleSys.Get(bucket)
if err == nil && lc.HasActiveRules("", true) {
if intDataUpdateTracker.debug {
logger.Info(color.Green("crawlBucket:") + " lifecycle: Active rules found")
}
cache.Info.lifeCycle = lc
}
// Load bucket info.
cache, err = crawlDataFolder(ctx, fs.fsPath, cache, fs.waitForLowActiveIO, func(item crawlItem) (int64, error) {
bucket, object := item.bucket, item.objectPath()
fsMetaBytes, err := ioutil.ReadFile(pathJoin(fs.fsPath, minioMetaBucket, bucketMetaPrefix, bucket, object, fs.metaJSONFile))
if err != nil && !os.IsNotExist(err) {
return 0, errSkipFile
}
// Get file size, symlinks which cannot be
// followed are automatically filtered by fastwalk.
fi, err := os.Stat(item.Path)
if err != nil {
fsMeta := newFSMetaV1()
metaOk := false
if len(fsMetaBytes) > 0 {
var json = jsoniter.ConfigCompatibleWithStandardLibrary
if err = json.Unmarshal(fsMetaBytes, &fsMeta); err == nil {
metaOk = true
}
}
if !metaOk {
fsMeta = fs.defaultFsJSON(object)
}
// Stat the file.
fi, fiErr := os.Stat(item.Path)
if fiErr != nil {
return 0, errSkipFile
}
if len(fsMetaBytes) > 0 {
fsMeta := newFSMetaV1()
var json = jsoniter.ConfigCompatibleWithStandardLibrary
if err = json.Unmarshal(fsMetaBytes, &fsMeta); err != nil {
return 0, errSkipFile
}
return fsMeta.ToObjectInfo(bucket, object, fi).GetActualSize()
oi := fsMeta.ToObjectInfo(bucket, object, fi)
sz := item.applyActions(ctx, fs, actionMeta{oi: oi, meta: fsMeta.Meta})
if sz >= 0 {
return sz, nil
}
return fi.Size(), nil
})
cache.Info.BloomFilter = nil
// Even if there was an error, the new cache may have better info.
if cache.Info.LastUpdate.After(oldCache.Info.LastUpdate) {
if intDataUpdateTracker.debug {
logger.Info(color.Green("CrawlAndGetDataUsage:")+" Saving cache with %d entries", len(cache.Cache))
}
logger.LogIf(ctx, cache.save(ctx, fs, dataUsageCacheName))
updates <- cache.dui(dataUsageRoot, buckets)
} else {
if intDataUpdateTracker.debug {
logger.Info(color.Green("CrawlAndGetDataUsage:")+" Cache not updated, %d entries", len(cache.Cache))
}
}
return err
return cache, err
}
/// Bucket operations
@ -381,6 +437,7 @@ func (fs *FSObjects) SetBucketPolicy(ctx context.Context, bucket string, p *poli
return err
}
var json = jsoniter.ConfigCompatibleWithStandardLibrary
configData, err := json.Marshal(p)
if err != nil {
return err

33
cmd/posix.go
View File

@ -18,6 +18,7 @@ package cmd
import (
"bufio"
"bytes"
"context"
"crypto/rand"
"encoding/hex"
@ -35,8 +36,6 @@ import (
"syscall"
"time"
"bytes"
humanize "github.com/dustin/go-humanize"
jsoniter "github.com/json-iterator/go"
"github.com/klauspost/readahead"
@ -366,7 +365,18 @@ func (s *posix) waitForLowActiveIO() {
}
func (s *posix) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCache) (dataUsageCache, error) {
dataUsageInfo, err := updateUsage(ctx, s.diskPath, cache, s.waitForLowActiveIO, func(item Item) (int64, error) {
// Check if the current bucket has a configured lifecycle policy
lc, err := globalLifecycleSys.Get(cache.Info.Name)
if err == nil && lc.HasActiveRules("", true) {
cache.Info.lifeCycle = lc
}
// Get object api
objAPI := newObjectLayerWithoutSafeModeFn()
if objAPI == nil {
return cache, errors.New("object layer not initialized")
}
dataUsageInfo, err := crawlDataFolder(ctx, s.diskPath, cache, s.waitForLowActiveIO, func(item crawlItem) (int64, error) {
// Look for `xl.json' at the leaf.
if !strings.HasSuffix(item.Path, SlashSeparator+xlMetaJSONFile) {
// if no xl.json found, skip the file.
@ -379,23 +389,22 @@ func (s *posix) CrawlAndGetDataUsage(ctx context.Context, cache dataUsageCache)
}
meta, err := xlMetaV1UnmarshalJSON(ctx, xlMetaBuf)
if err != nil {
return 0, nil
}
// we don't necessarily care about the names
// of bucket and object, only interested in size.
// so use some dummy names.
size, err := meta.ToObjectInfo("dummy", "dummy").GetActualSize()
if err != nil {
return 0, errSkipFile
}
return size, nil
// Remove filename which is the meta file.
item.transformMetaDir()
return item.applyActions(ctx, objAPI,
actionMeta{oi: meta.ToObjectInfo(item.bucket, item.objectPath()),
meta: meta.Meta,
}), nil
})
if err != nil {
return dataUsageInfo, err
}
dataUsageInfo.Info.LastUpdate = time.Now()
total := dataUsageInfo.sizeRecursive(dataUsageInfo.Info.Name)
if total == nil {

3
cmd/server-main.go
View File

@ -350,8 +350,7 @@ func startBackgroundOps(ctx context.Context, objAPI ObjectLayer) {
initGlobalHeal(ctx, objAPI)
}
initDataUsageStats(ctx, objAPI)
initDailyLifecycle(ctx, objAPI)
initDataCrawler(ctx, objAPI)
initQuotaEnforcement(ctx, objAPI)
}

6
cmd/storage-rest-client.go
View File

@ -168,12 +168,8 @@ func (client *storageRESTClient) CrawlAndGetDataUsage(ctx context.Context, cache
if err != nil {
return cache, err
}
b, err = ioutil.ReadAll(reader)
if err != nil {
return cache, err
}
var newCache dataUsageCache
return newCache, newCache.deserialize(b)
return newCache, newCache.deserialize(reader)
}
func (client *storageRESTClient) GetDiskID() (string, error) {

7
cmd/storage-rest-server.go
View File

@ -138,13 +138,8 @@ func (s *storageRESTServer) CrawlAndGetDataUsageHandler(w http.ResponseWriter, r
}
w.Header().Set(xhttp.ContentType, "text/event-stream")
b, err := ioutil.ReadAll(r.Body)
if err != nil {
s.writeErrorResponse(w, err)
return
}
var cache dataUsageCache
err = cache.deserialize(b)
err := cache.deserialize(r.Body)
if err != nil {
logger.LogIf(r.Context(), err)
s.writeErrorResponse(w, err)

4
cmd/xl-v1.go
View File

@ -214,7 +214,7 @@ func (xl xlObjects) GetMetrics(ctx context.Context) (*Metrics, error) {
// CrawlAndGetDataUsage will start crawling buckets and send updated totals as they are traversed.
// Updates are sent on a regular basis and the caller *must* consume them.
func (xl xlObjects) CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error {
// This should only be called from runDataUsageInfo and this setup should not happen (zones).
// This should only be called from runDataCrawler and this setup should not happen (zones).
return errors.New("xlObjects CrawlAndGetDataUsage not implemented")
}
@ -246,7 +246,7 @@ func (xl xlObjects) crawlAndGetDataUsage(ctx context.Context, buckets []BucketIn
Name: dataUsageRoot,
NextCycle: oldCache.Info.NextCycle,
},
Cache: make(map[dataUsageHash]dataUsageEntry, len(oldCache.Cache)),
Cache: make(map[string]dataUsageEntry, len(oldCache.Cache)),
}
// Put all buckets into channel.

9
cmd/xl-zones.go
View File

@ -261,6 +261,7 @@ func (z *xlZones) CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, upd
// Start crawler. Blocks until done.
err := xl.crawlAndGetDataUsage(ctx, buckets, bf, updates)
if err != nil {
logger.LogIf(ctx, err)
mu.Lock()
if firstErr == nil {
firstErr = err
@ -313,9 +314,11 @@ func (z *xlZones) CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, upd
wg.Wait()
ch := make(chan struct{})
updateCloser <- ch
<-ch
select {
case updateCloser <- ch:
<-ch
case <-ctx.Done():
}
return firstErr
}

24
pkg/bucket/lifecycle/action_string.go Normal file
View File

@ -0,0 +1,24 @@
// Code generated by "stringer -type Action lifecycle.go"; DO NOT EDIT.
package lifecycle
import "strconv"
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.
var x [1]struct{}
_ = x[NoneAction-0]
_ = x[DeleteAction-1]
}
const _Action_name = "NoneActionDeleteAction"
var _Action_index = [...]uint8{0, 10, 22}
func (i Action) String() string {
if i < 0 || i >= Action(len(_Action_index)-1) {
return "Action(" + strconv.FormatInt(int64(i), 10) + ")"
}
return _Action_name[_Action_index[i]:_Action_index[i+1]]
}

2
pkg/bucket/lifecycle/expiration.go
View File

@ -124,7 +124,7 @@ func (e Expiration) IsDaysNull() bool {
// IsDateNull returns true if date field is null
func (e Expiration) IsDateNull() bool {
return e.Date == ExpirationDate{time.Time{}}
return e.Date.Time.IsZero()
}
// IsNull returns true if both date and days fields are null

43
pkg/bucket/lifecycle/lifecycle.go
View File

@ -33,6 +33,8 @@ var (
// actions that will be implemented later.
type Action int
//go:generate stringer -type Action $GOFILE
const (
// NoneAction means no action required after evaluting lifecycle rules
NoneAction Action = iota
@ -46,9 +48,44 @@ type Lifecycle struct {
Rules []Rule `xml:"Rule"`
}
// IsEmpty - returns whether policy is empty or not.
func (lc Lifecycle) IsEmpty() bool {
return len(lc.Rules) == 0
// HasActiveRules - returns whether policy has active rules for.
// Optionally a prefix can be supplied.
// If recursive is specified the function will also return true if any level below the
// prefix has active rules. If no prefix is specified recursive is effectively true.
func (lc Lifecycle) HasActiveRules(prefix string, recursive bool) bool {
if len(lc.Rules) == 0 {
return false
}
for _, rule := range lc.Rules {
if rule.Status == Disabled {
continue
}
if len(prefix) > 0 && len(rule.Filter.Prefix) > 0 {
// incoming prefix must be in rule prefix
if !recursive && !strings.HasPrefix(prefix, rule.Filter.Prefix) {
continue
}
// If recursive, we can skip this rule if it doesn't match the tested prefix.
if recursive && !strings.HasPrefix(rule.Filter.Prefix, prefix) {
continue
}
}
if rule.NoncurrentVersionExpiration.NoncurrentDays > 0 {
return true
}
if rule.NoncurrentVersionTransition.NoncurrentDays > 0 {
return true
}
if rule.Expiration.IsNull() {
continue
}
if !rule.Expiration.IsDateNull() && rule.Expiration.Date.After(time.Now()) {
continue
}
return true
}
return false
}
// ParseLifecycleConfig - parses data in given reader to Lifecycle.