GC has not collected an expired object about neofs-node HOT 2 CLOSED

May 30 17:58:59 metis4 neofs-node[4408]: 2024-05-30T17:58:59.789Z        error        replicator/process.go:76        could not replicate object        {"component": "Object Replicator", "node": "03aeff8a19f0202090afb0916b1c00b432321be7e8623a06c9b9b5db8ee5c053a4", "object": "HXSaMJXk2g8C14ht8HSi7BBaiYZ1HeWh2xnWPGQCg4H6/HmECRDC25qyX8MxNHeA21PK8aymLZcPSYQKyLBNBiTUM", "error": "copy object using NeoFS API client of the remote node: status: code = 1024 message = failed to verify and store object locally: validate object format: object did not pass expiration check: object has expired"}

from neofs-node.

They are parts of a big (V1, hehe) object. Needed to be investigated but it seems to me that happened smth like this:

1. V1 parts had (or had to have but did not?) expiration attr in every part
2. There is no expiration for its parts in #390 (at least I do no see it), only handling small objects or GC mark for root object and "dropping" non-existing big object from the blobstor
3. The new V2 object scheme landed and brought a nice check for replicated small objects (both for V1 and V2 big objects):

   neofs-node/pkg/core/object/fmt.go

   Lines 133 to 162 in ea78a2d

   	if obj.HasParent() {
   	if splitID != nil {
   	// V1 split
   	if firstSet {
   	return errors.New("v1 split: first object ID is set")
   	}
   	} else {
   	// V2 split
   	if !firstSet {
   	// first part only
   	if obj.Parent() == nil {
   	return errors.New("v2 split: first object part does not have parent header")
   	}
   	} else {
   	// 2nd+ parts
   	typ := obj.Type()
   	// link object only
   	if typ == object.TypeLink && (par == nil || par.Signature() == nil) {
   	return errors.New("v2 split: incorrect link object's parent header")
   	}
   	if _, hasPrevious := obj.PreviousID(); typ != object.TypeLink && !hasPrevious {
   	return errors.New("v2 split: middle part does not have previous object ID")
   	}
   	}
   	}
   	}

4. The check started to work and does not allow expired parts replication but GC still does not expire small parts.

The main solutions, for now, should include the following: see an expired big object and expire its every part, not just mark the root object as deleted.

from neofs-node.