simple compaction planner fixes (#18526)

Co-authored-by: ivanmorozov333 <[email protected]>

2 files changed, 3 insertions, 1 deletions

diff --git a/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/level/abstract.h b/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/level/abstract.h
index 1a5579c3df4..f9f187914e5 100644
--- a/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/level/abstract.h
+++ b/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/level/abstract.h
@@ -370,7 +370,7 @@ public:
     }
 
     bool IsOverloaded() const {
-        return OverloadChecker->IsOverloaded(GetPortionsInfo());
+        return NextLevel && OverloadChecker->IsOverloaded(GetPortionsInfo());
     }
 
     bool HasData() const {
diff --git a/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/optimizer.h b/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/optimizer.h
index 53212a66045..30aa4ab5ec9 100644
--- a/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/optimizer.h
+++ b/ydb/core/tx/columnshard/engines/storage/optimizer/lcbuckets/planner/optimizer.h
@@ -26,6 +26,8 @@ private:
         for (ui32 i = baseLevel; i + 1 < Levels.size(); ++i) {
             if (Levels[i]->IsAppropriatePortionToMove(info) && Levels[i + 1]->IsAppropriatePortionToStore(info)) {
                 result = i + 1;
+            } else {
+                break;
             }
         }
         return result;