diff --git a/ydb/core/kqp/compile_service/kqp_compile_actor.cpp b/ydb/core/kqp/compile_service/kqp_compile_actor.cpp
index 63da68f0ff8b..4eadfcae2bf1 100644
--- a/ydb/core/kqp/compile_service/kqp_compile_actor.cpp
+++ b/ydb/core/kqp/compile_service/kqp_compile_actor.cpp
@@ -184,7 +184,7 @@ class TKqpCompileActor : public TActorBootstrapped<TKqpCompileActor> {
         Config->FeatureFlags = AppData(ctx)->FeatureFlags;
 
         KqpHost = CreateKqpHost(Gateway, QueryId.Cluster, QueryId.Database, Config, ModuleResolverState->ModuleResolver,
-            FederatedQuerySetup, UserToken, ApplicationName, AppData(ctx)->FunctionRegistry, false, false, std::move(TempTablesState), nullptr, UserRequestContext->SessionId);
+            FederatedQuerySetup, UserToken, ApplicationName, AppData(ctx)->FunctionRegistry, false, false, std::move(TempTablesState));
 
         IKqpHost::TPrepareSettings prepareSettings;
         prepareSettings.DocumentApiRestricted = QueryId.Settings.DocumentApiRestricted;
diff --git a/ydb/core/kqp/host/kqp_host.cpp b/ydb/core/kqp/host/kqp_host.cpp
index 4afb455e0f85..abfe0e22fc52 100644
--- a/ydb/core/kqp/host/kqp_host.cpp
+++ b/ydb/core/kqp/host/kqp_host.cpp
@@ -959,11 +959,10 @@ class TKqpHost : public IKqpHost {
         std::optional<TKqpFederatedQuerySetup> federatedQuerySetup, const TIntrusiveConstPtr<NACLib::TUserToken>& userToken,
         const NKikimr::NMiniKQL::IFunctionRegistry* funcRegistry, bool keepConfigChanges,
         bool isInternalCall, TKqpTempTablesState::TConstPtr tempTablesState = nullptr,
-        NActors::TActorSystem* actorSystem = nullptr, TString sessionId = "")
+        NActors::TActorSystem* actorSystem = nullptr)
         : Gateway(gateway)
         , Cluster(cluster)
         , ApplicationName(applicationName)
-        , SessionId(sessionId)
         , ExprCtx(new TExprContext())
         , ModuleResolver(moduleResolver)
         , KeepConfigChanges(keepConfigChanges)
@@ -1564,18 +1563,17 @@ class TKqpHost : public IKqpHost {
     }
 
     void InitYtProvider() {
-        Y_ENSURE(SessionId);
-
         TString userName = CreateGuidAsString();
         if (SessionCtx->GetUserToken() && SessionCtx->GetUserToken()->GetUserSID()) {
             userName = SessionCtx->GetUserToken()->GetUserSID();
         }
 
-        auto [ytState, statWriter] = CreateYtNativeState(FederatedQuerySetup->YtGateway, userName, SessionId, &FederatedQuerySetup->YtGatewayConfig, TypesCtx);
+        TString sessionId = CreateGuidAsString();
+        auto [ytState, statWriter] = CreateYtNativeState(FederatedQuerySetup->YtGateway, userName, sessionId, &FederatedQuerySetup->YtGatewayConfig, TypesCtx);
 
         ytState->PassiveExecution = true;
         ytState->Gateway->OpenSession(
-            IYtGateway::TOpenSessionOptions(SessionId)
+            IYtGateway::TOpenSessionOptions(sessionId)
                 .UserName(userName)
                 .RandomProvider(TAppData::RandomProvider)
                 .TimeProvider(TAppData::TimeProvider)
@@ -1726,7 +1724,6 @@ class TKqpHost : public IKqpHost {
     TIntrusivePtr<IKqpGateway> Gateway;
     TString Cluster;
     const TMaybe<TString> ApplicationName;
-    TString SessionId;
     THolder<TExprContext> ExprCtx;
     IModuleResolver::TPtr ModuleResolver;
     bool KeepConfigChanges;
@@ -1775,10 +1772,10 @@ TIntrusivePtr<IKqpHost> CreateKqpHost(TIntrusivePtr<IKqpGateway> gateway, const
     const TString& database, TKikimrConfiguration::TPtr config, IModuleResolver::TPtr moduleResolver,
     std::optional<TKqpFederatedQuerySetup> federatedQuerySetup, const TIntrusiveConstPtr<NACLib::TUserToken>& userToken,
     const TMaybe<TString>& applicationName, const NKikimr::NMiniKQL::IFunctionRegistry* funcRegistry, bool keepConfigChanges,
-    bool isInternalCall, TKqpTempTablesState::TConstPtr tempTablesState, NActors::TActorSystem* actorSystem, TString sessionId)
+    bool isInternalCall, TKqpTempTablesState::TConstPtr tempTablesState, NActors::TActorSystem* actorSystem)
 {
     return MakeIntrusive<TKqpHost>(gateway, cluster, database, applicationName, config, moduleResolver, federatedQuerySetup, userToken, funcRegistry,
-                                   keepConfigChanges, isInternalCall, std::move(tempTablesState), actorSystem, sessionId);
+                                   keepConfigChanges, isInternalCall, std::move(tempTablesState), actorSystem);
 }
 
 } // namespace NKqp
diff --git a/ydb/core/kqp/host/kqp_host.h b/ydb/core/kqp/host/kqp_host.h
index 911356d154f1..8396b745b5f6 100644
--- a/ydb/core/kqp/host/kqp_host.h
+++ b/ydb/core/kqp/host/kqp_host.h
@@ -112,7 +112,7 @@ TIntrusivePtr<IKqpHost> CreateKqpHost(TIntrusivePtr<IKqpGateway> gateway,
     std::optional<TKqpFederatedQuerySetup> federatedQuerySetup, const TIntrusiveConstPtr<NACLib::TUserToken>& userToken,
     const TMaybe<TString>& applicationName = Nothing(), const NKikimr::NMiniKQL::IFunctionRegistry* funcRegistry = nullptr,
     bool keepConfigChanges = false, bool isInternalCall = false, TKqpTempTablesState::TConstPtr tempTablesState = nullptr,
-    NActors::TActorSystem* actorSystem = nullptr /*take from TLS by default*/, TString sessionId = "");
+    NActors::TActorSystem* actorSystem = nullptr /*take from TLS by default*/);
 
 } // namespace NKqp
 } // namespace NKikimr
diff --git a/ydb/core/kqp/session_actor/kqp_session_actor.cpp b/ydb/core/kqp/session_actor/kqp_session_actor.cpp
index 4fc99b423463..95a5dadfc753 100644
--- a/ydb/core/kqp/session_actor/kqp_session_actor.cpp
+++ b/ydb/core/kqp/session_actor/kqp_session_actor.cpp
@@ -170,7 +170,6 @@ class TKqpSessionActor : public TActorBootstrapped<TKqpSessionActor> {
         , KqpSettings(kqpSettings)
         , Config(CreateConfig(kqpSettings, workerSettings))
         , Transactions(*Config->_KqpMaxActiveTxPerSession.Get(), TDuration::Seconds(*Config->_KqpTxIdleTimeoutSec.Get()))
-        , ActorSystem(TActivationContext::ActorSystem())
         , QueryServiceConfig(queryServiceConfig)
         , MetadataProviderConfig(metadataProviderConfig)
         , KqpTempTablesAgentActor(kqpTempTablesAgentActor)
@@ -1890,18 +1889,6 @@ class TKqpSessionActor : public TActorBootstrapped<TKqpSessionActor> {
         if (isFinal)
             Counters->ReportSessionActorClosedRequest(Settings.DbCounters);
 
-        if (isFinal && FederatedQuerySetup && FederatedQuerySetup->YtGateway) {
-            FederatedQuerySetup->YtGateway->CloseSession(
-                IYtGateway::TCloseSessionOptions(SessionId)
-            ).Subscribe([actorSystem = this->ActorSystem, sessionId = this->SessionId](const NThreading::TFuture<void>& future) {
-                try {
-                    future.GetValue();
-                } catch (...) {
-                    LOG_ERROR_S(*actorSystem, NKikimrServices::KQP_SESSION, "Failed to close yt session with id: " << sessionId << ", exception: " << CurrentExceptionMessage());
-                }
-            });
-        }
-
         if (isFinal) {
             // no longer intrested in any compilation responses
             CompilationCookie->store(false);
@@ -2353,7 +2340,6 @@ class TKqpSessionActor : public TActorBootstrapped<TKqpSessionActor> {
     std::optional<TSessionShutdownState> ShutdownState;
     TULIDGenerator UlidGen;
     NTxProxy::TRequestControls RequestControls;
-    TActorSystem* const ActorSystem;
 
     TKqpTempTablesState TempTablesState;
 
diff --git a/ydb/core/kqp/session_actor/kqp_worker_actor.cpp b/ydb/core/kqp/session_actor/kqp_worker_actor.cpp
index c03343816668..287f3b338169 100644
--- a/ydb/core/kqp/session_actor/kqp_worker_actor.cpp
+++ b/ydb/core/kqp/session_actor/kqp_worker_actor.cpp
@@ -188,7 +188,7 @@ class TKqpWorkerActor : public TActorBootstrapped<TKqpWorkerActor> {
         Config->FeatureFlags = AppData(ctx)->FeatureFlags;
 
         KqpHost = CreateKqpHost(Gateway, Settings.Cluster, Settings.Database, Config, ModuleResolverState->ModuleResolver, FederatedQuerySetup,
-            QueryState->RequestEv->GetUserToken(), Settings.ApplicationName, AppData(ctx)->FunctionRegistry, !Settings.LongSession, false, nullptr, nullptr, SessionId);
+            QueryState->RequestEv->GetUserToken(), Settings.ApplicationName, AppData(ctx)->FunctionRegistry, !Settings.LongSession, false);
 
         auto& queryRequest = QueryState->RequestEv;
         QueryState->ProxyRequestId = proxyRequestId;
diff --git a/ydb/library/yql/providers/yt/comp_nodes/dq/dq_yt_reader.cpp b/ydb/library/yql/providers/yt/comp_nodes/dq/dq_yt_reader.cpp
index 578c5115079e..f023a9c79478 100644
--- a/ydb/library/yql/providers/yt/comp_nodes/dq/dq_yt_reader.cpp
+++ b/ydb/library/yql/providers/yt/comp_nodes/dq/dq_yt_reader.cpp
@@ -37,7 +37,7 @@ using TInputType = NYT::TRawTableReaderPtr;
             for (int attempt = 0; attempt <= lastAttempt; ++attempt) {
                 try {
                     if (richYPath.TransactionId_) {
-                        auto transaction = client->AttachTransaction(richYPath.TransactionId_.GetRef());
+                        auto transaction = client->AttachTransaction(richYPath.TransactionId_.GetRef(), NYT::TAttachTransactionOptions().AutoPingable(true));
                         richYPath.TransactionId_.Clear();
                         reader = transaction->CreateRawReader(richYPath, format, readerOptions.CreateTransaction(false));
                     } else {
diff --git a/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.cpp b/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.cpp
index 37ccd690b5a3..7b81c99ce894 100644
--- a/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.cpp
+++ b/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.cpp
@@ -144,7 +144,7 @@ void TTransactionCache::TEntry::UpdateColumnarStat(NYT::TRichYPath ytPath, const
 ITransactionPtr TTransactionCache::TEntry::GetSnapshotTx(bool createTx) {
     auto guard = Guard(Lock_);
     if (createTx || !LastSnapshotTx) {
-        LastSnapshotTx = Tx->StartTransaction(TStartTransactionOptions().Attributes(TransactionSpec));
+        LastSnapshotTx = Tx->StartTransaction(TStartTransactionOptions().Attributes(TransactionSpec).PingAncestors(true));
         SnapshotTxs.emplace(LastSnapshotTx->GetId(), LastSnapshotTx);
     }
     return LastSnapshotTx;
@@ -462,4 +462,37 @@ void TTransactionCache::AbortAll() {
     }
 }
 
+void TTransactionCache::DetachSnapshotTxs() {
+    TString error;
+    auto detachTx = [&] (const ITransactionPtr& tx) {
+        try {
+            tx->Detach();
+        } catch (...) {
+            YQL_CLOG(ERROR, ProviderYt) << CurrentExceptionMessage();
+
+            // Store first detach error.
+            if (error.empty()) {
+                error = "Failed to detach transaction " + GetGuidAsString(tx->GetId()) + ": " + CurrentExceptionMessage();
+            }
+        }
+    };
+
+    for (auto& item : TxMap_) {
+        auto entry = item.second;
+
+        for (auto& item : entry->SnapshotTxs) {
+            YQL_CLOG(DEBUG, ProviderYt) << "DetachSnapshotTxs(): Detaching Snapshot tx " << GetGuidAsString(item.second->GetId());
+            detachTx(item.second);
+        }
+        if (entry->Tx) {
+            YQL_CLOG(INFO, ProviderYt) << "Detaching tx " << GetGuidAsString(entry->Tx->GetId())  << " on " << item.first;
+            detachTx(entry->Tx);
+        }
+    }
+
+    if (error) {
+        ythrow yexception() << error;
+    }
+}
+
 } // NYql
diff --git a/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.h b/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.h
index dfe2376d08c0..27cc98a12e02 100644
--- a/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.h
+++ b/ydb/library/yql/providers/yt/gateway/lib/transaction_cache.h
@@ -140,6 +140,7 @@ class TTransactionCache {
     void Commit(const TString& server);
     void Finalize();
     void AbortAll();
+    void DetachSnapshotTxs();
 
 private:
     TMutex Lock_;
diff --git a/ydb/library/yql/providers/yt/gateway/native/yql_yt_native.cpp b/ydb/library/yql/providers/yt/gateway/native/yql_yt_native.cpp
index 393939b34041..c20f4b1b20e8 100644
--- a/ydb/library/yql/providers/yt/gateway/native/yql_yt_native.cpp
+++ b/ydb/library/yql/providers/yt/gateway/native/yql_yt_native.cpp
@@ -280,9 +280,9 @@ class TYtNativeGateway : public IYtGateway {
         try {
             TSession::TPtr session = GetSession(options.SessionId());
             auto logCtx = NYql::NLog::CurrentLogContextPath();
-            return session->Queue_->Async([session, logCtx, abort=options.Abort()] () {
+            return session->Queue_->Async([session, logCtx, abort=options.Abort(), detachSnapshotTxs=options.DetachSnapshotTxs()] () {
                 YQL_LOG_CTX_ROOT_SESSION_SCOPE(logCtx);
-                return ExecFinalize(session, abort);
+                return ExecFinalize(session, abort, detachSnapshotTxs);
             });
         } catch (...) {
             return MakeFuture(ResultFromCurrentException<TFinalizeResult>());
@@ -1354,9 +1354,13 @@ class TYtNativeGateway : public IYtGateway {
         const TString OptLLVM_;
     };
 
-    static TFinalizeResult ExecFinalize(const TSession::TPtr& session, bool abort) {
+    static TFinalizeResult ExecFinalize(const TSession::TPtr& session, bool abort, bool detachSnapshotTxs) {
         try {
             TFinalizeResult res;
+            if (detachSnapshotTxs) {
+                YQL_CLOG(INFO, ProviderYt) << "Detaching all snapshot transactions";
+                session->TxCache_.DetachSnapshotTxs();
+            }
             if (abort) {
                 YQL_CLOG(INFO, ProviderYt) << "Aborting all transactions for hidden query";
                 session->TxCache_.AbortAll();
diff --git a/ydb/library/yql/providers/yt/provider/yql_yt_datasink_finalize.cpp b/ydb/library/yql/providers/yt/provider/yql_yt_datasink_finalize.cpp
index 234c483361c0..cf9a4f629635 100644
--- a/ydb/library/yql/providers/yt/provider/yql_yt_datasink_finalize.cpp
+++ b/ydb/library/yql/providers/yt/provider/yql_yt_datasink_finalize.cpp
@@ -17,14 +17,11 @@ class TYtDataSinkFinalizingTransformer: public TAsyncCallbackTransformer<TYtData
         Y_UNUSED(ctx);
         output = input;
 
-        if (State_->PassiveExecution) {
-            return SyncStatus(IGraphTransformer::TStatus::Ok);
-        }
-
         auto future = State_->Gateway->Finalize(
             IYtGateway::TFinalizeOptions(State_->SessionId)
                 .Config(State_->Configuration->Snapshot())
                 .Abort(State_->Types->HiddenMode == EHiddenMode::Force)
+                .DetachSnapshotTxs(State_->PassiveExecution)
         );
         return WrapFuture(future, [](const IYtGateway::TFinalizeResult& res, const TExprNode::TPtr& input, TExprContext& ctx) {
             Y_UNUSED(res);
diff --git a/ydb/library/yql/providers/yt/provider/yql_yt_gateway.h b/ydb/library/yql/providers/yt/provider/yql_yt_gateway.h
index e0f273c2ce11..e85afa2b14c8 100644
--- a/ydb/library/yql/providers/yt/provider/yql_yt_gateway.h
+++ b/ydb/library/yql/providers/yt/provider/yql_yt_gateway.h
@@ -142,6 +142,7 @@ class IYtGateway : public TThrRefBase {
 
         OPTION_FIELD(TYtSettings::TConstPtr, Config)
         OPTION_FIELD_DEFAULT(bool, Abort, false)
+        OPTION_FIELD_DEFAULT(bool, DetachSnapshotTxs, false)
     };
 
     struct TFinalizeResult : public NCommon::TOperationResult {