diff --git a/ydb/core/kqp/runtime/kqp_write_actor.cpp b/ydb/core/kqp/runtime/kqp_write_actor.cpp
index a1d5979bf773..6bc51ca06ed5 100644
--- a/ydb/core/kqp/runtime/kqp_write_actor.cpp
+++ b/ydb/core/kqp/runtime/kqp_write_actor.cpp
@@ -1103,7 +1103,7 @@ class TKqpTableWriteActor : public TActorBootstrapped<TKqpTableWriteActor> {
     void RetryShard(const ui64 shardId, const std::optional<ui64> ifCookieEqual) {
         const auto metadata = ShardedWriteController->GetMessageMetadata(shardId);
         if (!metadata || (ifCookieEqual && metadata->Cookie != ifCookieEqual)) {
-            CA_LOG_W("Retry failed: not found ShardID=" << shardId << " with Cookie=" << ifCookieEqual.value_or(0));
+            CA_LOG_I("Retry failed: not found ShardID=" << shardId << " with Cookie=" << ifCookieEqual.value_or(0));
             return;
         }
 
@@ -1119,7 +1119,7 @@ class TKqpTableWriteActor : public TActorBootstrapped<TKqpTableWriteActor> {
     }
 
     void Handle(TEvPrivate::TEvShardRequestTimeout::TPtr& ev) {
-        CA_LOG_W("Timeout shardID=" << ev->Get()->ShardId);
+        CA_LOG_I("Timeout shardID=" << ev->Get()->ShardId);
         YQL_ENSURE(InconsistentTx);
         RetryShard(ev->Get()->ShardId, ev->Cookie);
     }
diff --git a/ydb/core/tx/schemeshard/schemeshard__background_cleaning.cpp b/ydb/core/tx/schemeshard/schemeshard__background_cleaning.cpp
index ac246aa24f36..6993ef963c96 100644
--- a/ydb/core/tx/schemeshard/schemeshard__background_cleaning.cpp
+++ b/ydb/core/tx/schemeshard/schemeshard__background_cleaning.cpp
@@ -62,6 +62,7 @@ NOperationQueue::EStartStatus TSchemeShard::StartBackgroundCleaning(const TPathI
     auto ctx = ActorContext();
     LOG_INFO_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD, "RunBackgroundCleaning "
         "for temp dir# " << JoinPath({info->WorkingDir, info->Name})
+        << ", pathId# " << pathId
         << ", ownerId# " << info->TempDirOwnerActorId
         << ", next wakeup# " << BackgroundCleaningQueue->GetWakeupDelta()
         << ", rate# " << BackgroundCleaningQueue->GetRate()
@@ -309,6 +310,13 @@ void TSchemeShard::RetryNodeSubscribe(ui32 nodeId) {
     }
 
     retryState.RetryNumber++;
+    auto ctx = ActorContext();
+    LOG_INFO_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD, "Retry node subscribe BackgroundCleaning "
+        "for nodeId# " << nodeId
+        << ", count of retries# " << retryState.RetryNumber
+        << ", retries limit# " << BackgroundCleaningRetrySettings.GetMaxRetryNumber()
+        << ", last retry at# " << retryState.LastRetryAt
+        << " at schemeshard " << TabletID());
 
     if (retryState.RetryNumber > BackgroundCleaningRetrySettings.GetMaxRetryNumber()) {
         for (const auto& ownerActorId: nodeState.Owners) {
@@ -359,6 +367,11 @@ bool TSchemeShard::CheckOwnerUndelivered(TEvents::TEvUndelivered::TPtr& ev) {
     }
 
     auto& currentTempDirs = it->second;
+    auto ctx = ActorContext();
+    LOG_INFO_S(ctx, NKikimrServices::FLAT_TX_SCHEMESHARD, "Owner undelivered for BackgroundCleaning "
+        "for ownerActorId# " << ownerActorId
+        << ", undelivered reason# " << ev->Get()->Reason
+        << " at schemeshard " << TabletID());
 
     for (auto& pathId: currentTempDirs) {
         EnqueueBackgroundCleaning(pathId);
diff --git a/ydb/core/tx/schemeshard/schemeshard__init.cpp b/ydb/core/tx/schemeshard/schemeshard__init.cpp
index f9a71d29acfa..6c9576f0b2a5 100644
--- a/ydb/core/tx/schemeshard/schemeshard__init.cpp
+++ b/ydb/core/tx/schemeshard/schemeshard__init.cpp
@@ -112,7 +112,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
             rowSet.template GetValueOrDefault<typename SchemaTable::DirAlterVersion>(1),
             rowSet.template GetValueOrDefault<typename SchemaTable::UserAttrsAlterVersion>(1),
             rowSet.template GetValueOrDefault<typename SchemaTable::ACLVersion>(0),
-            rowSet.template GetValueOrDefault<typename SchemaTable::TempDirOwnerActorId>()
+            rowSet.template GetValueOrDefault<typename SchemaTable::TempDirOwnerActorIdProto>()
         );
     }
 
@@ -138,7 +138,7 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
 
         TPathElement::TPtr path = new TPathElement(pathId, parentPathId, domainId, name, owner);
 
-        TString tempDirOwnerActorId;
+        TString tempDirOwnerActorIdProto;
         std::tie(
             std::ignore, //pathId
             std::ignore, //parentPathId
@@ -154,14 +154,16 @@ struct TSchemeShard::TTxInit : public TTransactionBase<TSchemeShard> {
             path->DirAlterVersion,
             path->UserAttrs->AlterVersion,
             path->ACLVersion,
-            tempDirOwnerActorId) = rec;
+            tempDirOwnerActorIdProto) = rec;
 
         path->PathState = TPathElement::EPathState::EPathStateNoChanges;
         if (path->StepDropped) {
             path->PathState = TPathElement::EPathState::EPathStateNotExist;
         }
 
-        path->TempDirOwnerActorId.Parse(tempDirOwnerActorId.c_str(), tempDirOwnerActorId.size());
+        if (NActorsProto::TActorId protoId; protoId.ParseFromString(tempDirOwnerActorIdProto)) {
+            path->TempDirOwnerActorId = ActorIdFromProto(protoId);
+        }
 
         return path;
     }
diff --git a/ydb/core/tx/schemeshard/schemeshard_impl.cpp b/ydb/core/tx/schemeshard/schemeshard_impl.cpp
index 98821c8234e7..5ea8147b3164 100644
--- a/ydb/core/tx/schemeshard/schemeshard_impl.cpp
+++ b/ydb/core/tx/schemeshard/schemeshard_impl.cpp
@@ -2111,6 +2111,10 @@ void TSchemeShard::PersistLastTxId(NIceDb::TNiceDb& db, const TPathElement::TPtr
 void TSchemeShard::PersistPath(NIceDb::TNiceDb& db, const TPathId& pathId) {
     Y_ABORT_UNLESS(PathsById.contains(pathId));
     TPathElement::TPtr elem = PathsById.at(pathId);
+
+    NActorsProto::TActorId tempDirOwnerActorIdProto;
+    ActorIdToProto(elem->TempDirOwnerActorId, &tempDirOwnerActorIdProto);
+
     if (IsLocalId(pathId)) {
         db.Table<Schema::Paths>().Key(pathId.LocalPathId).Update(
                     NIceDb::TUpdate<Schema::Paths::ParentOwnerId>(elem->ParentPathId.OwnerId),
@@ -2127,7 +2131,8 @@ void TSchemeShard::PersistPath(NIceDb::TNiceDb& db, const TPathId& pathId) {
                     NIceDb::TUpdate<Schema::Paths::DirAlterVersion>(elem->DirAlterVersion),
                     NIceDb::TUpdate<Schema::Paths::UserAttrsAlterVersion>(elem->UserAttrs->AlterVersion),
                     NIceDb::TUpdate<Schema::Paths::ACLVersion>(elem->ACLVersion),
-                    NIceDb::TUpdate<Schema::Paths::TempDirOwnerActorId>(elem->TempDirOwnerActorId.ToString())
+                    NIceDb::TUpdate<Schema::Paths::TempDirOwnerActorId>(elem->TempDirOwnerActorId.ToString()),
+                    NIceDb::TUpdate<Schema::Paths::TempDirOwnerActorIdProto>(tempDirOwnerActorIdProto.SerializeAsString())
                     );
     } else {
         db.Table<Schema::MigratedPaths>().Key(pathId.OwnerId, pathId.LocalPathId).Update(
@@ -2145,7 +2150,8 @@ void TSchemeShard::PersistPath(NIceDb::TNiceDb& db, const TPathId& pathId) {
                     NIceDb::TUpdate<Schema::MigratedPaths::DirAlterVersion>(elem->DirAlterVersion),
                     NIceDb::TUpdate<Schema::MigratedPaths::UserAttrsAlterVersion>(elem->UserAttrs->AlterVersion),
                     NIceDb::TUpdate<Schema::MigratedPaths::ACLVersion>(elem->ACLVersion),
-                    NIceDb::TUpdate<Schema::MigratedPaths::TempDirOwnerActorId>(elem->TempDirOwnerActorId.ToString())
+                    NIceDb::TUpdate<Schema::MigratedPaths::TempDirOwnerActorId>(elem->TempDirOwnerActorId.ToString()),
+                    NIceDb::TUpdate<Schema::MigratedPaths::TempDirOwnerActorIdProto>(tempDirOwnerActorIdProto.SerializeAsString())
                     );
     }
 }
diff --git a/ydb/core/tx/schemeshard/schemeshard_schema.h b/ydb/core/tx/schemeshard/schemeshard_schema.h
index 7a599fcaaebb..0dd08dc265ff 100644
--- a/ydb/core/tx/schemeshard/schemeshard_schema.h
+++ b/ydb/core/tx/schemeshard/schemeshard_schema.h
@@ -35,14 +35,15 @@ struct Schema : NIceDb::Schema {
         struct UserAttrsAlterVersion : Column<14, NScheme::NTypeIds::Uint64> {};
         struct ACLVersion :            Column<15, NScheme::NTypeIds::Uint64> {};
         struct ParentOwnerId :         Column<16, NScheme::NTypeIds::Uint64> { using Type = TOwnerId; static constexpr Type Default = InvalidOwnerId; };
-        struct TempDirOwnerActorId :   Column<17, NScheme::NTypeIds::String> {}; // Only for EPathType::EPathTypeDir.
-                                                                                 // Not empty if dir must be deleted after loosing connection with TempDirOwnerActorId actor.
-                                                                                 // See schemeshard__background_cleaning.cpp.
+        struct TempDirOwnerActorId :   Column<17, NScheme::NTypeIds::String> {}; // legacy
+        struct TempDirOwnerActorIdProto : Column<18, NScheme::NTypeIds::String> {}; // Only for EPathType::EPathTypeDir.
+                                                                                    // Not empty if dir must be deleted after loosing connection with TempDirOwnerActorId actor.
+                                                                                    // See schemeshard__background_cleaning.cpp.
 
         using TKey = TableKey<Id>;
         using TColumns = TableColumns<Id, ParentId, Name, CreateFinished, PathType, StepCreated, CreateTxId,
             StepDropped, DropTxId, Owner, ACL, LastTxId, DirAlterVersion, UserAttrsAlterVersion, ACLVersion,
-            ParentOwnerId, TempDirOwnerActorId>;
+            ParentOwnerId, TempDirOwnerActorId, TempDirOwnerActorIdProto>;
     };
 
     struct MigratedPaths : Table<50> {
@@ -62,13 +63,15 @@ struct Schema : NIceDb::Schema {
         struct DirAlterVersion :       Column<14, NScheme::NTypeIds::Uint64> {};
         struct UserAttrsAlterVersion : Column<15, NScheme::NTypeIds::Uint64> {};
         struct ACLVersion :            Column<16, NScheme::NTypeIds::Uint64> {};
-        struct TempDirOwnerActorId :   Column<17, NScheme::NTypeIds::String> {}; // Only for EPathType::EPathTypeDir.
-                                                                                 // Not empty if dir must be deleted after loosing connection with TempDirOwnerActorId actor.
-                                                                                 // See schemeshard__background_cleaning.cpp.
+        struct TempDirOwnerActorId :   Column<17, NScheme::NTypeIds::String> {}; // legacy
+        struct TempDirOwnerActorIdProto : Column<18, NScheme::NTypeIds::String> {}; // Only for EPathType::EPathTypeDir.
+                                                                                    // Not empty if dir must be deleted after loosing connection with TempDirOwnerActorId actor.
+                                                                                    // See schemeshard__background_cleaning.cpp.
 
         using TKey = TableKey<OwnerPathId, LocalPathId>;
         using TColumns = TableColumns<OwnerPathId, LocalPathId, ParentOwnerId, ParentLocalId, Name, PathType, StepCreated, CreateTxId,
-            StepDropped, DropTxId, Owner, ACL, LastTxId, DirAlterVersion, UserAttrsAlterVersion, ACLVersion, TempDirOwnerActorId>;
+            StepDropped, DropTxId, Owner, ACL, LastTxId, DirAlterVersion, UserAttrsAlterVersion, ACLVersion, TempDirOwnerActorId,
+            TempDirOwnerActorIdProto>;
     };
 
     struct TxInFlight : Table<2> { // not in use
diff --git a/ydb/tests/functional/scheme_tests/canondata/tablet_scheme_tests.TestTabletSchemes.test_tablet_schemes_flat_schemeshard_/flat_schemeshard.schema b/ydb/tests/functional/scheme_tests/canondata/tablet_scheme_tests.TestTabletSchemes.test_tablet_schemes_flat_schemeshard_/flat_schemeshard.schema
index b5e7138d8f3c..4d2510344dda 100644
--- a/ydb/tests/functional/scheme_tests/canondata/tablet_scheme_tests.TestTabletSchemes.test_tablet_schemes_flat_schemeshard_/flat_schemeshard.schema
+++ b/ydb/tests/functional/scheme_tests/canondata/tablet_scheme_tests.TestTabletSchemes.test_tablet_schemes_flat_schemeshard_/flat_schemeshard.schema
@@ -6,11 +6,6 @@
             1
         ],
         "ColumnsAdded": [
-            {
-                "ColumnId": 17,
-                "ColumnName": "TempDirOwnerActorId",
-                "ColumnType": "String"
-            },
             {
                 "ColumnId": 1,
                 "ColumnName": "Id",
@@ -90,13 +85,22 @@
                 "ColumnId": 16,
                 "ColumnName": "ParentOwnerId",
                 "ColumnType": "Uint64"
+            },
+            {
+                "ColumnId": 17,
+                "ColumnName": "TempDirOwnerActorId",
+                "ColumnType": "String"
+            },
+            {
+                "ColumnId": 18,
+                "ColumnName": "TempDirOwnerActorIdProto",
+                "ColumnType": "String"
             }
         ],
         "ColumnsDropped": [],
         "ColumnFamilies": {
             "0": {
                 "Columns": [
-                    17,
                     1,
                     2,
                     3,
@@ -112,7 +116,9 @@
                     13,
                     14,
                     15,
-                    16
+                    16,
+                    17,
+                    18
                 ],
                 "RoomID": 0,
                 "Codec": 0,
@@ -3537,11 +3543,6 @@
             2
         ],
         "ColumnsAdded": [
-            {
-                "ColumnId": 17,
-                "ColumnName": "TempDirOwnerActorId",
-                "ColumnType": "String"
-            },
             {
                 "ColumnId": 1,
                 "ColumnName": "OwnerPathId",
@@ -3621,13 +3622,22 @@
                 "ColumnId": 16,
                 "ColumnName": "ACLVersion",
                 "ColumnType": "Uint64"
+            },
+            {
+                "ColumnId": 17,
+                "ColumnName": "TempDirOwnerActorId",
+                "ColumnType": "String"
+            },
+            {
+                "ColumnId": 18,
+                "ColumnName": "TempDirOwnerActorIdProto",
+                "ColumnType": "String"
             }
         ],
         "ColumnsDropped": [],
         "ColumnFamilies": {
             "0": {
                 "Columns": [
-                    17,
                     1,
                     2,
                     3,
@@ -3643,7 +3653,9 @@
                     13,
                     14,
                     15,
-                    16
+                    16,
+                    17,
+                    18
                 ],
                 "RoomID": 0,
                 "Codec": 0,