frostfs-node/pkg/local_object_storage/metabase/expired.go
Dmitrii Stepanov 7bf20c9f1f [] metabase: Add expiration epoch buckets
Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2024-08-22 08:21:40 +00:00

111 lines
3 KiB
Go

package meta
import (
"context"
"encoding/binary"
"errors"
"strconv"
"time"
"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"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.etcd.io/bbolt"
"go.opentelemetry.io/otel/attribute"
"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.
func (db *DB) FilterExpired(ctx context.Context, epoch uint64, addresses []oid.Address) ([]oid.Address, error) {
var (
startedAt = time.Now()
success = true
)
defer func() {
db.metrics.AddMethodDuration("FilterExpired", time.Since(startedAt), success)
}()
_, span := tracing.StartSpanFromContext(ctx, "metabase.FilterExpired",
trace.WithAttributes(
attribute.String("epoch", strconv.FormatUint(epoch, 10)),
attribute.Int("addr_count", len(addresses)),
))
defer span.End()
db.modeMtx.RLock()
defer db.modeMtx.RUnlock()
if db.mode.NoMetabase() {
return nil, ErrDegradedMode
}
result := make([]oid.Address, 0, len(addresses))
containerIDToObjectIDs := make(map[cid.ID][]oid.ID)
for _, addr := range addresses {
containerIDToObjectIDs[addr.Container()] = append(containerIDToObjectIDs[addr.Container()], addr.Object())
}
err := db.boltDB.View(func(tx *bbolt.Tx) error {
for containerID, objectIDs := range containerIDToObjectIDs {
select {
case <-ctx.Done():
return ErrInterruptIterator
default:
}
expired, err := selectExpiredObjects(tx, epoch, containerID, objectIDs)
if err != nil {
return err
}
result = append(result, expired...)
}
return nil
})
if err != nil {
return nil, metaerr.Wrap(err)
}
success = true
return result, nil
}
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
}
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 nil, err
}
if expired {
result = append(result, addr)
}
}
return result, nil
}