diff --git a/be/src/http/action/compaction_action.cpp b/be/src/http/action/compaction_action.cpp
index 1cfd27f2e939a4..852cd149a575c4 100644
--- a/be/src/http/action/compaction_action.cpp
+++ b/be/src/http/action/compaction_action.cpp
@@ -208,7 +208,7 @@ Status CompactionAction::_execute_compaction_callback(TabletSharedPtr tablet,
                 res = Status::Error<TRY_LOCK_FAILED>();
             } else {
                 StorageEngine::instance()->create_base_compaction(tablet, base_compaction);
-                Status res = base_compaction->prepare_compact();
+                res = base_compaction->prepare_compact();
                 if (res.ok()) {
                     tablet->set_base_compaction(base_compaction);
                     need_reset = true;
@@ -240,7 +240,7 @@ Status CompactionAction::_execute_compaction_callback(TabletSharedPtr tablet,
         bool need_reset = false;
         {
             std::unique_lock compaction_meta_lock(tablet->get_compaction_meta_lock());
-            Status res = cumu_compaction->prepare_compact();
+            res = cumu_compaction->prepare_compact();
             if (res.ok()) {
                 tablet->add_cumulative_compaction_unlocked(cumu_compaction);
                 need_reset = true;
@@ -255,7 +255,7 @@ Status CompactionAction::_execute_compaction_callback(TabletSharedPtr tablet,
         }
 
         if (!res) {
-            if (res.is<BE_NO_SUITABLE_VERSION>()) {
+            if (res.is<CUMULATIVE_NO_SUITABLE_VERSION>()) {
                 // Ignore this error code.
                 VLOG_NOTICE << "failed to init cumulative compaction due to no suitable version,"
                             << "tablet=" << tablet->full_name();
diff --git a/be/src/olap/base_compaction.h b/be/src/olap/base_compaction.h
index ecee304449aef5..84fcdb86f8ec6c 100644
--- a/be/src/olap/base_compaction.h
+++ b/be/src/olap/base_compaction.h
@@ -43,8 +43,6 @@ class BaseCompaction : public Compaction {
     Status prepare_compact() override;
     Status execute_compact_impl() override;
 
-    std::vector<RowsetSharedPtr> get_input_rowsets() { return _input_rowsets; }
-
 protected:
     Status pick_rowsets_to_compact() override;
     std::string compaction_name() const override { return "base compaction"; }
diff --git a/be/src/olap/compaction.cpp b/be/src/olap/compaction.cpp
index fb153be3f53b6a..d66c26d3863038 100644
--- a/be/src/olap/compaction.cpp
+++ b/be/src/olap/compaction.cpp
@@ -262,6 +262,7 @@ bool Compaction::handle_ordered_data_compaction() {
             if (i <= input_size / 2) {
                 return false;
             } else {
+                // TODO(ccl): other thread will read _input_rowsets, maybe add a lock
                 _input_rowsets.resize(i);
                 break;
             }
diff --git a/be/src/olap/cumulative_compaction.h b/be/src/olap/cumulative_compaction.h
index e2b1a4d038d65b..f16ce4d5620f7a 100644
--- a/be/src/olap/cumulative_compaction.h
+++ b/be/src/olap/cumulative_compaction.h
@@ -40,8 +40,6 @@ class CumulativeCompaction : public Compaction {
     Status prepare_compact() override;
     Status execute_compact_impl() override;
 
-    const std::vector<RowsetSharedPtr>& get_input_rowsets() { return _input_rowsets; }
-
 protected:
     Status pick_rowsets_to_compact() override;