diff --git a/ydb/core/tx/columnshard/columnshard_impl.h b/ydb/core/tx/columnshard/columnshard_impl.h
index 537ad9128897..89c34e6cebbe 100644
--- a/ydb/core/tx/columnshard/columnshard_impl.h
+++ b/ydb/core/tx/columnshard/columnshard_impl.h
@@ -101,6 +101,7 @@ class TWaitEraseTablesTxSubscriber;
 class TTxBlobsWritingFinished;
 class TTxBlobsWritingFailed;
 class TWriteTasksQueue;
+class TWriteTask;
 
 namespace NLoading {
 class TInsertTableInitializer;
@@ -230,6 +231,8 @@ class TColumnShard: public TActor<TColumnShard>, public NTabletFlatExecutor::TTa
     friend class NLoading::TInFlightReadsInitializer;
     friend class NLoading::TSpecialValuesInitializer;
     friend class NLoading::TTablesManagerInitializer;
+    friend class TWriteTasksQueue;
+    friend class TWriteTask;
 
     class TTxProgressTx;
     class TTxProposeCancel;
diff --git a/ydb/core/tx/columnshard/tablet/write_queue.cpp b/ydb/core/tx/columnshard/tablet/write_queue.cpp
index c8e36146f06e..3e8e1a22cea4 100644
--- a/ydb/core/tx/columnshard/tablet/write_queue.cpp
+++ b/ydb/core/tx/columnshard/tablet/write_queue.cpp
@@ -1,12 +1,14 @@
 #include "write_queue.h"
 
 #include <ydb/core/tx/columnshard/columnshard_impl.h>
+#include <ydb/core/tx/columnshard/operations/write_data.h>
+#include <ydb/core/tx/data_events/write_data.h>
 
 namespace NKikimr::NColumnShard {
 
 bool TWriteTask::CheckOverloadImmediate(TColumnShard* owner, const TActorContext& ctx) {
     auto overloadStatus = owner->CheckOverloadedImmediate(PathId);
-    if (overloadStatus == EOverloadStatus::None) {
+    if (overloadStatus == TColumnShard::EOverloadStatus::None) {
         return false;
     }
     owner->Counters.GetWritesMonitor()->OnFinishWrite(ArrowData->GetSize());
@@ -19,12 +21,12 @@ bool TWriteTask::CheckOverloadImmediate(TColumnShard* owner, const TActorContext
 }
 
 bool TWriteTask::Execute(TColumnShard* owner, const TActorContext& ctx) {
-    overloadStatus = owner->CheckOverloadedWait(PathId);
-    if (overloadStatus == EOverloadStatus::OverloadMetadata) {
+    auto overloadStatus = owner->CheckOverloadedWait(PathId);
+    if (overloadStatus == TColumnShard::EOverloadStatus::OverloadMetadata) {
         AFL_DEBUG(NKikimrServices::TX_COLUMNSHARD_WRITE)("event", "wait_overload")("status", overloadStatus);
         return false;
     }
-    AFL_VERIFY(overloadStatus == EOverloadStatus::None);
+    AFL_VERIFY(overloadStatus == TColumnShard::EOverloadStatus::None);
 
     owner->OperationsManager->RegisterLock(LockId, owner->Generation());
     auto writeOperation = owner->OperationsManager->RegisterOperation(
@@ -44,6 +46,10 @@ bool TWriteTask::Execute(TColumnShard* owner, const TActorContext& ctx) {
     return true;
 }
 
+ui64 TWriteTask::GetSize() const {
+    return ArrowData->GetSize();
+}
+
 bool TWriteTasksQueue::Drain(const bool onWakeup, const TActorContext& ctx) {
     if (onWakeup) {
         WriteTasksOverloadCheckerScheduled = false;
diff --git a/ydb/core/tx/columnshard/tablet/write_queue.h b/ydb/core/tx/columnshard/tablet/write_queue.h
index 81b94766114b..682cdbf7e823 100644
--- a/ydb/core/tx/columnshard/tablet/write_queue.h
+++ b/ydb/core/tx/columnshard/tablet/write_queue.h
@@ -2,10 +2,10 @@
 #include <ydb/core/tx/columnshard/engines/scheme/versions/abstract_scheme.h>
 #include <ydb/core/tx/columnshard/operations/write.h>
 #include <ydb/core/tx/data_events/common/modification_type.h>
-#include <ydb/core/tx/data_events/write_data.h>
 
 namespace NKikimr::NColumnShard {
 class TColumnShard;
+class TArrowData;
 class TWriteTask: TMoveOnly {
 private:
     std::shared_ptr<TArrowData> ArrowData;
@@ -34,10 +34,13 @@ class TWriteTask: TMoveOnly {
         , Behaviour(behaviour) {
     }
 
+    ui64 GetSize() const;
+
     const TMonotonic& GetCreatedMonotonic() const {
         return Created;
     }
 
+    bool CheckOverloadImmediate(TColumnShard* owner, const TActorContext& ctx);
     bool Execute(TColumnShard* owner, const TActorContext& ctx);
 };