diff --git a/be/src/exprs/bloom_filter_func.h b/be/src/exprs/bloom_filter_func.h
index e6fed96b589a55..2d2b7664ace5ec 100644
--- a/be/src/exprs/bloom_filter_func.h
+++ b/be/src/exprs/bloom_filter_func.h
@@ -137,6 +137,7 @@ class BloomFilterFuncBase {
         if (_inited) {
             return Status::OK();
         }
+        // TODO: really need the lock?
         std::lock_guard<std::mutex> l(_lock);
         if (_inited) {
             return Status::OK();
diff --git a/be/src/runtime/runtime_filter_mgr.cpp b/be/src/runtime/runtime_filter_mgr.cpp
index 14ee165684ef16..438071667162f0 100644
--- a/be/src/runtime/runtime_filter_mgr.cpp
+++ b/be/src/runtime/runtime_filter_mgr.cpp
@@ -311,6 +311,7 @@ Status RuntimeFilterMergeControllerEntity::merge(const PMergeFilterRequest* requ
     SCOPED_CONSUME_MEM_TRACKER(_mem_tracker);
     std::shared_ptr<RuntimeFilterCntlVal> cntVal;
     int merged_size = 0;
+    int64_t merge_time = 0;
     {
         int64_t start_merge = MonotonicMillis();
         std::lock_guard<std::mutex> guard(_filter_map_mutex);
@@ -334,9 +335,11 @@ Status RuntimeFilterMergeControllerEntity::merge(const PMergeFilterRequest* requ
         // TODO: avoid log when we had acquired a lock
         VLOG_ROW << "merge size:" << merged_size << ":" << cntVal->producer_size;
         DCHECK_LE(merged_size, cntVal->producer_size);
-        _merge_timer += (MonotonicMillis() - start_merge);
+        iter->second->merge_time += (MonotonicMillis() - start_merge);
         if (merged_size < cntVal->producer_size) {
             return Status::OK();
+        } else {
+            merge_time = iter->second->merge_time;
         }
     }
 
@@ -374,7 +377,7 @@ Status RuntimeFilterMergeControllerEntity::merge(const PMergeFilterRequest* requ
                 rpc_contexts[cur]->request.set_filter_id(request->filter_id());
                 rpc_contexts[cur]->request.set_is_pipeline(request->has_is_pipeline() &&
                                                            request->is_pipeline());
-                rpc_contexts[cur]->request.set_merge_time(_merge_timer);
+                rpc_contexts[cur]->request.set_merge_time(merge_time);
                 *rpc_contexts[cur]->request.mutable_query_id() = request->query_id();
                 if (has_attachment) {
                     rpc_contexts[cur]->cntl.request_attachment().append(request_attachment);
diff --git a/be/src/runtime/runtime_filter_mgr.h b/be/src/runtime/runtime_filter_mgr.h
index f3cb32813fc3e8..7d7e7a0ba1d8e3 100644
--- a/be/src/runtime/runtime_filter_mgr.h
+++ b/be/src/runtime/runtime_filter_mgr.h
@@ -139,7 +139,7 @@ class RuntimeFilterMergeControllerEntity {
     UniqueId instance_id() const { return _fragment_instance_id; }
 
     struct RuntimeFilterCntlVal {
-        int64_t create_time;
+        int64_t merge_time;
         int producer_size;
         TRuntimeFilterDesc runtime_filter_desc;
         std::vector<doris::TRuntimeFilterTargetParams> target_info;
@@ -173,7 +173,6 @@ class RuntimeFilterMergeControllerEntity {
     std::map<std::string, std::shared_ptr<RuntimeFilterCntlVal>> _filter_map;
     RuntimeState* _state;
     bool _opt_remote_rf = true;
-    int64_t _merge_timer = 0;
 };
 
 // RuntimeFilterMergeController has a map query-id -> entity