[#825] policer: Do not drop required linking objects

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
This commit is contained in:
Dmitrii Stepanov 2023-12-11 16:50:44 +03:00 committed by Evgenii Stratonikov
parent a3ef7b58b4
commit 681b2c5fd4
3 changed files with 32 additions and 12 deletions

View file

@ -1,6 +1,8 @@
package object
import (
"fmt"
objectSDK "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
)
@ -8,6 +10,11 @@ import (
// AddressWithType groups object address with its FrostFS
// object type.
type AddressWithType struct {
Address oid.Address
Type objectSDK.Type
Address oid.Address
Type objectSDK.Type
IsLinkingObject bool
}
func (v AddressWithType) String() string {
return fmt.Sprintf("address: %s, type: %s, is linking: %t", v.Address, v.Type, v.IsLinkingObject)
}

View file

@ -102,6 +102,7 @@ func (db *DB) ListWithCursor(ctx context.Context, prm ListPrm) (res ListRes, err
func (db *DB) listWithCursor(tx *bbolt.Tx, result []objectcore.AddressWithType, count int, cursor *Cursor) ([]objectcore.AddressWithType, *Cursor, error) {
threshold := cursor == nil // threshold is a flag to ignore cursor
var bucketName []byte
var err error
c := tx.Cursor()
name, _ := c.First()
@ -140,8 +141,11 @@ loop:
bkt := tx.Bucket(name)
if bkt != nil {
copy(rawAddr, cidRaw)
result, offset, cursor = selectNFromBucket(bkt, objType, graveyardBkt, garbageBkt, rawAddr, containerID,
result, offset, cursor, err = selectNFromBucket(bkt, objType, graveyardBkt, garbageBkt, rawAddr, containerID,
result, count, cursor, threshold)
if err != nil {
return nil, nil, err
}
}
bucketName = name
if len(result) >= count {
@ -183,23 +187,23 @@ func selectNFromBucket(bkt *bbolt.Bucket, // main bucket
limit int, // stop listing at `limit` items in result
cursor *Cursor, // start from cursor object
threshold bool, // ignore cursor and start immediately
) ([]objectcore.AddressWithType, []byte, *Cursor) {
) ([]objectcore.AddressWithType, []byte, *Cursor, error) {
if cursor == nil {
cursor = new(Cursor)
}
count := len(to)
c := bkt.Cursor()
k, _ := c.First()
k, v := c.First()
offset := cursor.inBucketOffset
if !threshold {
c.Seek(offset)
k, _ = c.Next() // we are looking for objects _after_ the cursor
k, v = c.Next() // we are looking for objects _after_ the cursor
}
for ; k != nil; k, _ = c.Next() {
for ; k != nil; k, v = c.Next() {
if count >= limit {
break
}
@ -214,14 +218,23 @@ func selectNFromBucket(bkt *bbolt.Bucket, // main bucket
continue
}
var isLinkingObj bool
if objType == objectSDK.TypeRegular {
var o objectSDK.Object
if err := o.Unmarshal(v); err != nil {
return nil, nil, nil, err
}
isLinkingObj = isLinkObject(&o)
}
var a oid.Address
a.SetContainer(cnt)
a.SetObject(obj)
to = append(to, objectcore.AddressWithType{Address: a, Type: objType})
to = append(to, objectcore.AddressWithType{Address: a, Type: objType, IsLinkingObject: isLinkingObj})
count++
}
return to, offset, cursor
return to, offset, cursor, nil
}
func parseContainerIDWithPrefix(containerID *cid.ID, name []byte) ([]byte, byte) {

View file

@ -93,10 +93,10 @@ func (p *Policer) processNodes(ctx context.Context, requirements *placementRequi
// Number of copies that are stored on maintenance nodes.
var uncheckedCopies int
if typ == objectSDK.TypeLock || typ == objectSDK.TypeTombstone {
// all nodes of a container must store the `LOCK` and `TOMBSTONE` objects
if typ == objectSDK.TypeLock || typ == objectSDK.TypeTombstone || addrWithType.IsLinkingObject {
// all nodes of a container must store the `LOCK`, `TOMBSTONE` and linking objects
// for correct object removal protection:
// - `LOCK` and `TOMBSTONE` objects are broadcast on their PUT requests;
// - `LOCK`, `TOMBSTONE` and linking objects are broadcast on their PUT requests;
// - `LOCK` object removal is a prohibited action in the GC.
shortage = uint32(len(nodes))
}