Merge dff9ab4 into 508e93d

Author: Hor911

ydb/core/kqp/compute_actor/kqp_scan_compute_actor.h

@@ -87,6 +87,7 @@ class TKqpScanComputeActor: public TSchedulableComputeActorBase<TKqpScanComputeA
             TBase::OnMemoryLimitExceptionHandler();
         } catch (const yexception& e) {
             InternalError(NYql::NDqProto::StatusIds::INTERNAL_ERROR, NYql::TIssuesIds::DEFAULT_ERROR, e.what());
+            FreeComputeCtxData();
         }
 
         TBase::ReportEventElapsedTime();
@@ -127,17 +128,21 @@ class TKqpScanComputeActor: public TSchedulableComputeActorBase<TKqpScanComputeA
 
     void PollSources(ui64 prevFreeSpace);
 
-    void PassAway() override {
+    void DoTerminateImpl() override {
+        FreeComputeCtxData();
+        TBase::DoTerminateImpl();
+    }
+
+    void FreeComputeCtxData() {
         if (TaskRunner) {
             if (TaskRunner->IsAllocatorAttached()) {
                 ComputeCtx.Clear();
             } else {
                 auto guard = TaskRunner->BindAllocator(TBase::GetMkqlMemoryLimit());
                 ComputeCtx.Clear();
             }
+            ScanData = nullptr;
         }
-
-        TBase::PassAway();
     }
 
     void TerminateSources(const NYql::TIssues& issues, bool success) override {