ale64bit/frostfs-node
1
0
Fork 0
forked from TrueCloudLab/frostfs-node
Code Issues Pull requests Projects Releases Packages Wiki Activity

[#1323] metabase: Add expiration epoch buckets

Browse source 
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
This commit is contained in:
Dmitrii Stepanov 2024-08-20 11:59:42 +03:00 committed by Evgenii Stratonikov
parent 2542d4f5df
commit 7bf20c9f1f
11 changed files with 181 additions and 170 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
pkg/local_object_storage/metabase/control.go
View file

@ -29,6 +29,7 @@ var (
string(garbageBucketName): {},
string(shardInfoBucket): {},
string(bucketNameLocked): {},
string(expEpochToObjectBucketName): {},
}
// deprecatedBuckets buckets that are not used anymore.

11
pkg/local_object_storage/metabase/delete.go
View file

@ -478,6 +478,17 @@ func delUniqueIndexes(tx *bbolt.Tx, obj *objectSDK.Object, isParent bool) error
key: objKey,
})
if expEpoch, ok := hasExpirationEpoch(obj); ok {
delUniqueIndexItem(tx, namedBucketItem{
name: expEpochToObjectBucketName,
key: expirationEpochKey(expEpoch, cnr, addr.Object()),
})
delUniqueIndexItem(tx, namedBucketItem{
name: objectToExpirationEpochBucketName(cnr, make([]byte, bucketKeySize)),
key: objKey,
})
}
return nil
}

3
pkg/local_object_storage/metabase/delete_ec_test.go
View file

@ -418,7 +418,8 @@ func testVerifyNoObjectDataLeft(tx *bbolt.Tx) error {
return tx.ForEach(func(name []byte, b *bbolt.Bucket) error {
if bytes.Equal(name, shardInfoBucket) ||
bytes.Equal(name, containerCounterBucketName) ||
bytes.Equal(name, containerVolumeBucketName) {
bytes.Equal(name, containerVolumeBucketName) ||
bytes.Equal(name, expEpochToObjectBucketName) {
return nil
}
return testBucketEmpty(name, b)

26
pkg/local_object_storage/metabase/exists.go
View file

@ -5,7 +5,6 @@ import (
"fmt"
"time"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
@ -96,7 +95,11 @@ func (db *DB) exists(tx *bbolt.Tx, addr oid.Address, parent oid.Address, currEpo
locked = objectLocked(tx, parent.Container(), parent.Object())
}
// check graveyard and object expiration first
switch objectStatus(tx, addr, currEpoch) {
st, err := objectStatus(tx, addr, currEpoch)
if err != nil {
return false, false, err
}
switch st {
case 1:
return false, locked, logicerr.Wrap(new(apistatus.ObjectNotFound))
case 2:
@ -138,30 +141,25 @@ func (db *DB) exists(tx *bbolt.Tx, addr oid.Address, parent oid.Address, currEpo
// - 1 if object with GC mark;
// - 2 if object is covered with tombstone;
// - 3 if object is expired.
func objectStatus(tx *bbolt.Tx, addr oid.Address, currEpoch uint64) uint8 {
func objectStatus(tx *bbolt.Tx, addr oid.Address, currEpoch uint64) (uint8, error) {
// locked object could not be removed/marked with GC/expired
if objectLocked(tx, addr.Container(), addr.Object()) {
return 0
return 0, nil
}
// we check only if the object is expired in the current
// epoch since it is considered the only corner case: the
// GC is expected to collect all the objects that have
// expired previously for less than the one epoch duration
expired := isExpiredWithAttribute(tx, objectV2.SysAttributeExpEpoch, addr, currEpoch)
if !expired {
expired = isExpiredWithAttribute(tx, objectV2.SysAttributeExpEpochNeoFS, addr, currEpoch)
expired, err := isExpired(tx, addr, currEpoch)
if err != nil {
return 0, err
}
if expired {
return 3
return 3, nil
}
graveyardBkt := tx.Bucket(graveyardBucketName)
garbageBkt := tx.Bucket(garbageBucketName)
addrKey := addressKey(addr, make([]byte, addressKeySize))
return inGraveyardWithKey(addrKey, graveyardBkt, garbageBkt)
return inGraveyardWithKey(addrKey, graveyardBkt, garbageBkt), nil
}
func inGraveyardWithKey(addrKey []byte, graveyard, garbageBCK *bbolt.Bucket) uint8 {

118
pkg/local_object_storage/metabase/expired.go
View file

@ -2,12 +2,11 @@ package meta
import (
"context"
"encoding/binary"
"errors"
"fmt"
"strconv"
"time"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
@ -17,6 +16,8 @@ import (
"go.opentelemetry.io/otel/trace"
)
var errInvalidEpochValueLength = errors.New("could not parse expiration epoch: invalid data length")
// FilterExpired return expired items from addresses.
// Address considered expired if metabase does contain information about expiration and
// expiration epoch is less than epoch.
@ -57,29 +58,11 @@ func (db *DB) FilterExpired(ctx context.Context, epoch uint64, addresses []oid.A
default:
}
expiredNeoFS, err := selectExpiredObjectIDs(tx, objectV2.SysAttributeExpEpochNeoFS, epoch, containerID, objectIDs)
expired, err := selectExpiredObjects(tx, epoch, containerID, objectIDs)
if err != nil {
return err
}
expiredSys, err := selectExpiredObjectIDs(tx, objectV2.SysAttributeExpEpoch, epoch, containerID, objectIDs)
if err != nil {
return err
}
for _, o := range expiredNeoFS {
var a oid.Address
a.SetContainer(containerID)
a.SetObject(o)
result = append(result, a)
}
for _, o := range expiredSys {
var a oid.Address
a.SetContainer(containerID)
a.SetObject(o)
result = append(result, a)
}
result = append(result, expired...)
}
return nil
})
@ -90,76 +73,39 @@ func (db *DB) FilterExpired(ctx context.Context, epoch uint64, addresses []oid.A
return result, nil
}
func isExpiredWithAttribute(tx *bbolt.Tx, attr string, addr oid.Address, currEpoch uint64) bool {
// bucket with objects that have expiration attr
attrKey := make([]byte, bucketKeySize+len(attr))
expirationBucket := tx.Bucket(attributeBucketName(addr.Container(), attr, attrKey))
if expirationBucket != nil {
// bucket that contains objects that expire in the current epoch
prevEpochBkt := expirationBucket.Bucket([]byte(strconv.FormatUint(currEpoch-1, 10)))
if prevEpochBkt != nil {
rawOID := objectKey(addr.Object(), make([]byte, objectKeySize))
if prevEpochBkt.Get(rawOID) != nil {
return true
func isExpired(tx *bbolt.Tx, addr oid.Address, currEpoch uint64) (bool, error) {
bucketName := make([]byte, bucketKeySize)
bucketName = objectToExpirationEpochBucketName(addr.Container(), bucketName)
b := tx.Bucket(bucketName)
if b == nil {
return false, nil
}
key := make([]byte, objectKeySize)
addr.Object().Encode(key)
val := b.Get(key)
if len(val) == 0 {
return false, nil
}
if len(val) != epochSize {
return false, errInvalidEpochValueLength
}
expEpoch := binary.LittleEndian.Uint64(val)
return expEpoch < currEpoch, nil
}
return false
}
func selectExpiredObjectIDs(tx *bbolt.Tx, attr string, epoch uint64, containerID cid.ID, objectIDs []oid.ID) ([]oid.ID, error) {
result := make([]oid.ID, 0)
notResolved := make(map[oid.ID]struct{})
for _, oid := range objectIDs {
notResolved[oid] = struct{}{}
}
expiredBuffer := make([]oid.ID, 0)
objectKeyBuffer := make([]byte, objectKeySize)
expirationBucketKey := make([]byte, bucketKeySize+len(attr))
expirationBucket := tx.Bucket(attributeBucketName(containerID, attr, expirationBucketKey))
if expirationBucket == nil {
return result, nil // all not expired
}
err := expirationBucket.ForEach(func(epochExpBucketKey, _ []byte) error {
bucketExpiresAfter, err := strconv.ParseUint(string(epochExpBucketKey), 10, 64)
func selectExpiredObjects(tx *bbolt.Tx, epoch uint64, containerID cid.ID, objectIDs []oid.ID) ([]oid.Address, error) {
result := make([]oid.Address, 0)
var addr oid.Address
addr.SetContainer(containerID)
for _, objID := range objectIDs {
addr.SetObject(objID)
expired, err := isExpired(tx, addr, epoch)
if err != nil {
return fmt.Errorf("could not parse expiration epoch: %w", err)
} else if bucketExpiresAfter >= epoch {
return nil
}
epochExpirationBucket := expirationBucket.Bucket(epochExpBucketKey)
if epochExpirationBucket == nil {
return nil
}
expiredBuffer = expiredBuffer[:0]
for oid := range notResolved {
key := objectKey(oid, objectKeyBuffer)
if epochExpirationBucket.Get(key) != nil {
expiredBuffer = append(expiredBuffer, oid)
}
}
for _, oid := range expiredBuffer {
delete(notResolved, oid)
result = append(result, oid)
}
if len(notResolved) == 0 {
return errBreakBucketForEach
}
return nil
})
if err != nil && !errors.Is(err, errBreakBucketForEach) {
return nil, err
}
if expired {
result = append(result, addr)
}
}
return result, nil
}

6
pkg/local_object_storage/metabase/get.go
View file

@ -90,7 +90,11 @@ func (db *DB) Get(ctx context.Context, prm GetPrm) (res GetRes, err error) {
func (db *DB) get(tx *bbolt.Tx, addr oid.Address, key []byte, checkStatus, raw bool, currEpoch uint64) (*objectSDK.Object, error) {
if checkStatus {
switch objectStatus(tx, addr, currEpoch) {
st, err := objectStatus(tx, addr, currEpoch)
if err != nil {
return nil, err
}
switch st {
case 1:
return nil, logicerr.Wrap(new(apistatus.ObjectNotFound))
case 2:

73
pkg/local_object_storage/metabase/iterators.go
View file

@ -7,7 +7,6 @@ import (
"strconv"
"time"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/util/logicerr"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
@ -79,64 +78,38 @@ func (db *DB) IterateExpired(ctx context.Context, epoch uint64, h ExpiredObjectH
}
func (db *DB) iterateExpired(tx *bbolt.Tx, epoch uint64, h ExpiredObjectHandler) error {
err := tx.ForEach(func(name []byte, b *bbolt.Bucket) error {
cidBytes := cidFromAttributeBucket(name, objectV2.SysAttributeExpEpoch)
if cidBytes == nil {
cidBytes = cidFromAttributeBucket(name, objectV2.SysAttributeExpEpochNeoFS)
if cidBytes == nil {
b := tx.Bucket(expEpochToObjectBucketName)
c := b.Cursor()
for k, _ := c.First(); k != nil; k, _ = c.Next() {
expiresAfter, cnr, obj, err := parseExpirationEpochKey(k)
if err != nil {
return err
}
// bucket keys ordered by epoch, no need to continue lookup
if expiresAfter >= epoch {
return nil
}
if objectLocked(tx, cnr, obj) {
continue
}
var cnrID cid.ID
err := cnrID.Decode(cidBytes)
if err != nil {
return fmt.Errorf("could not parse container ID of expired bucket: %w", err)
}
return b.ForEachBucket(func(expKey []byte) error {
bktExpired := b.Bucket(expKey)
expiresAfter, err := strconv.ParseUint(string(expKey), 10, 64)
if err != nil {
return fmt.Errorf("could not parse expiration epoch: %w", err)
} else if expiresAfter >= epoch {
return nil
}
return bktExpired.ForEach(func(idKey, _ []byte) error {
var id oid.ID
err = id.Decode(idKey)
if err != nil {
return fmt.Errorf("could not parse ID of expired object: %w", err)
}
// Ignore locked objects.
//
// To slightly optimize performance we can check only REGULAR objects
// (only they can be locked), but it's more reliable.
if objectLocked(tx, cnrID, id) {
return nil
}
var addr oid.Address
addr.SetContainer(cnrID)
addr.SetObject(id)
return h(&ExpiredObject{
typ: firstIrregularObjectType(tx, cnrID, idKey),
addr.SetContainer(cnr)
addr.SetObject(obj)
objKey := objectKey(addr.Object(), make([]byte, objectKeySize))
err = h(&ExpiredObject{
typ: firstIrregularObjectType(tx, cnr, objKey),
addr: addr,
})
})
})
})
if errors.Is(err, ErrInterruptIterator) {
err = nil
if err == nil {
continue
}
if errors.Is(err, ErrInterruptIterator) {
return nil
}
return err
}
return nil
}
// IterateCoveredByTombstones iterates over all objects in DB which are covered
// by tombstone with string address from tss. Locked objects are not included

41
pkg/local_object_storage/metabase/put.go
View file

@ -6,8 +6,10 @@ import (
"errors"
"fmt"
gio "io"
"strconv"
"time"
objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
objectCore "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/core/object"
storagelog "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/log"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/internal/metaerr"
@ -242,6 +244,27 @@ func putUniqueIndexes(
}
}
if expEpoch, ok := hasExpirationEpoch(obj); ok {
err := putUniqueIndexItem(tx, namedBucketItem{
name: expEpochToObjectBucketName,
key: expirationEpochKey(expEpoch, cnr, addr.Object()),
val: zeroValue,
})
if err != nil {
return err
}
val := make([]byte, epochSize)
binary.LittleEndian.PutUint64(val, expEpoch)
err = putUniqueIndexItem(tx, namedBucketItem{
name: objectToExpirationEpochBucketName(cnr, make([]byte, bucketKeySize)),
key: objKey,
val: val,
})
if err != nil {
return err
}
}
// index root object
if obj.Type() == objectSDK.TypeRegular && !obj.HasParent() {
if ecHead := obj.ECHeader(); ecHead != nil {
@ -361,6 +384,24 @@ func updateListIndexes(tx *bbolt.Tx, obj *objectSDK.Object, f updateIndexItemFun
return nil
}
func hasExpirationEpoch(obj *objectSDK.Object) (uint64, bool) {
attributes := obj.Attributes()
if ech := obj.ECHeader(); ech != nil {
attributes = ech.ParentAttributes()
}
for _, attr := range attributes {
if attr.Key() == objectV2.SysAttributeExpEpochNeoFS {
expEpoch, err := strconv.ParseUint(attr.Value(), 10, 64)
return expEpoch, err == nil
}
if attr.Key() == objectV2.SysAttributeExpEpoch {
expEpoch, err := strconv.ParseUint(attr.Value(), 10, 64)
return expEpoch, err == nil
}
}
return 0, false
}
func updateFKBTIndexes(tx *bbolt.Tx, obj *objectSDK.Object, f updateIndexItemFunc) error {
id, _ := obj.ID()
cnr, _ := obj.ContainerID()

7
pkg/local_object_storage/metabase/select.go
View file

@ -142,8 +142,11 @@ func (db *DB) selectObjects(tx *bbolt.Tx, cnr cid.ID, fs objectSDK.SearchFilters
var addr oid.Address
addr.SetContainer(cnr)
addr.SetObject(id)
if objectStatus(tx, addr, currEpoch) > 0 {
st, err := objectStatus(tx, addr, currEpoch)
if err != nil {
return nil, err
}
if st > 0 {
continue // ignore removed objects
}

53
pkg/local_object_storage/metabase/util.go
View file

@ -1,9 +1,10 @@
package meta
import (
"bytes"
"crypto/sha256"
"encoding/binary"
"errors"
"fmt"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
@ -23,6 +24,7 @@ var (
toMoveItBucketName = []byte{toMoveItPrefix}
containerVolumeBucketName = []byte{containerVolumePrefix}
containerCounterBucketName = []byte{containerCountersPrefix}
expEpochToObjectBucketName = []byte{expirationEpochToObjectPrefix}
zeroValue = []byte{0xFF}
@ -124,6 +126,16 @@ const (
// Key: container ID + type
// Value: Object id
ecInfoPrefix
// expirationEpochToObjectPrefix is used for storing relation between expiration epoch and object id.
// Key: expiration epoch + object address
// Value: zero
expirationEpochToObjectPrefix
// objectToExpirationEpochPrefix is used for storing relation between expiration epoch and object id.
// Key: object address
// Value: expiration epoch
objectToExpirationEpochPrefix
)
const (
@ -131,6 +143,7 @@ const (
bucketKeySize = 1 + cidSize
objectKeySize = sha256.Size
addressKeySize = cidSize + objectKeySize
epochSize = 8
)
func bucketName(cnr cid.ID, prefix byte, key []byte) []byte {
@ -161,15 +174,6 @@ func attributeBucketName(cnr cid.ID, attributeKey string, key []byte) []byte {
return append(key[:bucketKeySize], attributeKey...)
}
// returns <CID> from attributeBucketName result, nil otherwise.
func cidFromAttributeBucket(val []byte, attributeKey string) []byte {
if len(val) < bucketKeySize || val[0] != userAttributePrefix || !bytes.Equal(val[bucketKeySize:], []byte(attributeKey)) {
return nil
}
return val[1:bucketKeySize]
}
// rootBucketName returns <CID>_root.
func rootBucketName(cnr cid.ID, key []byte) []byte {
return bucketName(cnr, rootPrefix, key)
@ -190,6 +194,35 @@ func ecInfoBucketName(cnr cid.ID, key []byte) []byte {
return bucketName(cnr, ecInfoPrefix, key)
}
// objectToExpirationEpochBucketName returns objectToExpirationEpochPrefix_<CID>.
func objectToExpirationEpochBucketName(cnr cid.ID, key []byte) []byte {
return bucketName(cnr, objectToExpirationEpochPrefix, key)
}
func expirationEpochKey(epoch uint64, cnr cid.ID, obj oid.ID) []byte {
result := make([]byte, epochSize+addressKeySize)
binary.BigEndian.PutUint64(result, epoch)
cnr.Encode(result[epochSize:])
obj.Encode(result[epochSize+cidSize:])
return result
}
func parseExpirationEpochKey(key []byte) (uint64, cid.ID, oid.ID, error) {
if len(key) != epochSize+addressKeySize {
return 0, cid.ID{}, oid.ID{}, fmt.Errorf("unexpected expiration epoch to object key length: %d", len(key))
}
epoch := binary.BigEndian.Uint64(key)
var cnr cid.ID
if err := cnr.Decode(key[epochSize : epochSize+cidSize]); err != nil {
return 0, cid.ID{}, oid.ID{}, fmt.Errorf("failed to decode expiration epoch to object key (container ID): %w", err)
}
var obj oid.ID
if err := obj.Decode(key[epochSize+cidSize:]); err != nil {
return 0, cid.ID{}, oid.ID{}, fmt.Errorf("failed to decode expiration epoch to object key (object ID): %w", err)
}
return epoch, cnr, obj, nil
}
// addressKey returns key for K-V tables when key is a whole address.
func addressKey(addr oid.Address, key []byte) []byte {
addr.Container().Encode(key)

4
pkg/local_object_storage/shard/gc_test.go
View file

@ -74,7 +74,7 @@ func Test_GCDropsLockedExpiredSimpleObject(t *testing.T) {
var getPrm GetPrm
getPrm.SetAddress(objectCore.AddressOf(obj))
_, err = sh.Get(context.Background(), getPrm)
require.True(t, client.IsErrObjectNotFound(err), "expired object must be deleted")
require.True(t, client.IsErrObjectNotFound(err) || IsErrObjectExpired(err), "expired object must be deleted")
}
func Test_GCDropsLockedExpiredComplexObject(t *testing.T) {
@ -168,7 +168,7 @@ func Test_GCDropsLockedExpiredComplexObject(t *testing.T) {
sh.gc.handleEvent(context.Background(), EventNewEpoch(epoch.Value))
_, err = sh.Get(context.Background(), getPrm)
require.True(t, client.IsErrObjectNotFound(err), "expired complex object must be deleted on epoch after lock expires")
require.True(t, client.IsErrObjectNotFound(err) || IsErrObjectExpired(err), "expired complex object must be deleted on epoch after lock expires")
}
func TestGCDropsObjectInhumedFromWritecache(t *testing.T) {