diff --git a/src/rootserver/ob_ddl_service.cpp b/src/rootserver/ob_ddl_service.cpp
index 8c756070d6..d7e2e34af1 100755
--- a/src/rootserver/ob_ddl_service.cpp
+++ b/src/rootserver/ob_ddl_service.cpp
@@ -24846,8 +24846,8 @@ int ObDDLService::create_normal_tenant(
   const int64_t start_time = ObTimeUtility::fast_current_time();
   LOG_INFO("[CREATE_TENANT] STEP 2. start create tenant", K(tenant_id), K(tenant_schema), K(source_tenant_id));
   int ret = OB_SUCCESS;
-  ObSArray<ObTableSchema> tables;
   ObArenaAllocator arena_allocator("InnerTableSchem", OB_MALLOC_MIDDLE_BLOCK_SIZE);
+  ObSArray<ObTableSchema> tables;
   if (OB_FAIL(check_inner_stat())) {
     LOG_WARN("variable is not init", KR(ret));
   } else if (OB_UNLIKELY(!recovery_until_scn.is_valid_and_not_min())) {
diff --git a/src/share/ob_rpc_struct.cpp b/src/share/ob_rpc_struct.cpp
index bffb151686..6b3faa1d6c 100755
--- a/src/share/ob_rpc_struct.cpp
+++ b/src/share/ob_rpc_struct.cpp
@@ -9303,8 +9303,8 @@ const ObLSInfo &ObDetectMasterRsLSResult::get_ls_info() const
 ObBatchBroadcastSchemaArg::ObBatchBroadcastSchemaArg()
   : tenant_id_(common::OB_INVALID_TENANT_ID),
     sys_schema_version_(common::OB_INVALID_VERSION),
-    tables_(),
-    allocator_("BroadcastSchema", OB_MALLOC_MIDDLE_BLOCK_SIZE)
+    allocator_("BroadcastSchema", OB_MALLOC_MIDDLE_BLOCK_SIZE),
+    tables_()
 {}
 
 ObBatchBroadcastSchemaArg::~ObBatchBroadcastSchemaArg()
diff --git a/src/share/ob_rpc_struct.h b/src/share/ob_rpc_struct.h
index 2322221dc4..31836ed9e7 100755
--- a/src/share/ob_rpc_struct.h
+++ b/src/share/ob_rpc_struct.h
@@ -9634,9 +9634,8 @@ public:
 private:
   uint64_t tenant_id_;
   int64_t sys_schema_version_;
-  common::ObSArray<share::schema::ObTableSchema> tables_;
-public:
   common::ObArenaAllocator allocator_;
+  common::ObSArray<share::schema::ObTableSchema> tables_;
 };
 
 struct ObBatchBroadcastSchemaResult