diff --git a/src/graph/executor/admin/ShowTSClientsExecutor.cpp b/src/graph/executor/admin/ShowTSClientsExecutor.cpp
deleted file mode 100644
index f5981a6c1f3..00000000000
--- a/src/graph/executor/admin/ShowTSClientsExecutor.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Copyright (c) 2020 vesoft inc. All rights reserved.
- *
- * This source code is licensed under Apache 2.0 License.
- */
-
-#include "graph/executor/admin/ShowTSClientsExecutor.h"
-
-#include "graph/context/QueryContext.h"
-#include "graph/planner/plan/Admin.h"
-#include "graph/service/PermissionManager.h"
-#include "interface/gen-cpp2/meta_types.h"
-
-namespace nebula {
-namespace graph {
-
-folly::Future<Status> ShowTSClientsExecutor::execute() {
-  SCOPED_TIMER(&execTime_);
-  return showTSClients();
-}
-
-folly::Future<Status> ShowTSClientsExecutor::showTSClients() {
-  return qctx()->getMetaClient()->listFTClients().via(runner()).thenValue([this](auto &&resp) {
-    if (!resp.ok()) {
-      LOG(ERROR) << resp.status();
-      return resp.status();
-    }
-    auto value = std::move(resp).value();
-    DataSet v({"Host", "Port", "Connection type"});
-    for (const auto &client : value) {
-      nebula::Row r;
-      r.values.emplace_back(client.host.host);
-      r.values.emplace_back(client.host.port);
-      r.values.emplace_back(client.conn_type_ref().has_value() ? *client.get_conn_type() : "http");
-      v.emplace_back(std::move(r));
-    }
-    return finish(std::move(v));
-  });
-}
-
-}  // namespace graph
-}  // namespace nebula
diff --git a/src/storage/InternalStorageServiceHandler.h b/src/storage/InternalStorageServiceHandler.h
index 8f32bf7b937..63ed9105129 100644
--- a/src/storage/InternalStorageServiceHandler.h
+++ b/src/storage/InternalStorageServiceHandler.h
@@ -31,7 +31,7 @@ class InternalStorageServiceHandler final : public cpp2::InternalStorageServiceS
   folly::Future<cpp2::ExecResponse> future_syncData(const cpp2::SyncDataRequest& req) override;
 
   folly::Future<cpp2::ExecResponse> future_chainDeleteEdges(
-      const cpp2::ChainDeleteEdgesRequest& p_req);
+      const cpp2::ChainDeleteEdgesRequest& p_req) override;
 
  private:
   StorageEnv* env_{nullptr};