diff --git a/src/rootserver/backup/ob_archive_scheduler_service.cpp b/src/rootserver/backup/ob_archive_scheduler_service.cpp
index ea7a21d67b..e3583db3fb 100644
--- a/src/rootserver/backup/ob_archive_scheduler_service.cpp
+++ b/src/rootserver/backup/ob_archive_scheduler_service.cpp
@@ -309,7 +309,7 @@ int ObArchiveSchedulerService::start_tenant_archive_(const uint64_t tenant_id)
 {
   int ret = OB_SUCCESS;
   ObArchiveHandler archive_handler;
-  // TODO: wangxiaohui.wxh, start specific dest archive.
+  // Only one dest is supported.
   const int64_t dest_no = 0;
   if (OB_FAIL(archive_handler.init(tenant_id, *server_mgr_, *zone_mgr_, *unit_mgr_, schema_service_, *rpc_proxy_, *sql_proxy_))) {
     LOG_WARN("failed to init archive_handler", K(ret));
@@ -326,7 +326,7 @@ int ObArchiveSchedulerService::stop_tenant_archive_(const uint64_t tenant_id)
 {
   int ret = OB_SUCCESS;
   ObArchiveHandler archive_handler;
-  // TODO: wangxiaohui.wxh, stop specific dest archive.
+  // Only one dest is supported.
   const int64_t dest_no = 0;
   if (OB_FAIL(archive_handler.init(tenant_id, *server_mgr_, *zone_mgr_, *unit_mgr_, schema_service_, *rpc_proxy_, *sql_proxy_))) {
     LOG_WARN("failed to init archive_handler", K(ret), K(tenant_id));
diff --git a/src/rootserver/backup/ob_tenant_archive_scheduler.cpp b/src/rootserver/backup/ob_tenant_archive_scheduler.cpp
index 611df86956..1b4a601cfe 100644
--- a/src/rootserver/backup/ob_tenant_archive_scheduler.cpp
+++ b/src/rootserver/backup/ob_tenant_archive_scheduler.cpp
@@ -134,7 +134,7 @@ static int record_piece_checkpoint(const ObTenantArchivePieceAttr &piece_info, c
     && ObBackupFileStatus::STATUS::BACKUP_FILE_AVAILABLE == piece_info.file_status_)) {
   } else {
     // persist piece checkpoint
-    // TODO: wangxiaohui.wxh, change overwrite to append.
+    // TODO: change overwrite to append
     ObPieceCheckpointDesc checkpoint_desc;
     checkpoint_desc.tenant_id_ = piece_info.key_.tenant_id_;
     checkpoint_desc.dest_id_ = piece_info.key_.dest_id_;
@@ -671,7 +671,7 @@ int ObArchiveHandler::do_checkpoint_(share::ObTenantArchiveRoundAttr &round_info
 int ObArchiveHandler::notify_(const ObTenantArchiveRoundAttr &round)
 {
   int ret = OB_SUCCESS;
-  // TODO: wangxiaohui.wxh notify each log stream.
+  // TODO: notify each log stream.
   UNUSED(round);
   // Get all log streams, and try the best to notify each log stream event of archive start.
   return ret;
diff --git a/src/share/backup/ob_archive_persist_helper.cpp b/src/share/backup/ob_archive_persist_helper.cpp
index 2bf23e128e..3c4479829c 100644
--- a/src/share/backup/ob_archive_persist_helper.cpp
+++ b/src/share/backup/ob_archive_persist_helper.cpp
@@ -215,7 +215,6 @@ int ObArchivePersistHelper::get_piece_switch_interval(
   } else if (OB_FAIL(dest_attr.set_piece_switch_interval(value.ptr()))) {
     LOG_WARN("fail to set piece switch interval", K(ret), K(value));
   } else {
-  // TODO: need to adjust
     piece_switch_interval = dest_attr.piece_switch_interval_;
   }
   return ret;
diff --git a/src/share/backup/ob_backup_config.cpp b/src/share/backup/ob_backup_config.cpp
index 90df7830be..b705a32e29 100644
--- a/src/share/backup/ob_backup_config.cpp
+++ b/src/share/backup/ob_backup_config.cpp
@@ -384,7 +384,7 @@ int ObDataBackupDestConfigParser::update_inner_config_table(common::ObISQLClient
   ObBackupDestMgr dest_mgr;
   share::ObBackupPathString backup_dest;
   ObBackupDestType::TYPE dest_type = ObBackupDestType::TYPE::DEST_TYPE_BACKUP_DATA;
-  // TODO: wangxiaohui.wxh, handle trans failed after write format file.
+  // TODO: handle trans failed after write format file.
   if (!type_.is_valid() || 1 != config_items_.count() ) {
     ret = OB_INVALID_ARGUMENT;
     LOG_WARN("invalid parser", K(ret), KPC(this));
@@ -489,7 +489,7 @@ int ObLogArchiveDestConfigParser::update_archive_dest_config_(common::ObISQLClie
       LOG_WARN("fail to gen archive config items", K(ret)); 
     }
 
-    // TODO: wangxiaohui.wxh, handle trans failed after write format file.
+  // TODO: handle trans failed after write format file.
     ARRAY_FOREACH_X(config_items_, i, cnt, OB_SUCC(ret)) {
       const BackupConfigItemPair &config_item = config_items_.at(i);
       if (OB_FAIL(helper.set_kv_item(trans, dest_no_, config_item.key_, config_item.value_))) {
diff --git a/src/share/backup/ob_backup_connectivity.cpp b/src/share/backup/ob_backup_connectivity.cpp
index 19b613a309..3260551716 100644
--- a/src/share/backup/ob_backup_connectivity.cpp
+++ b/src/share/backup/ob_backup_connectivity.cpp
@@ -354,7 +354,9 @@ int ObBackupCheckFile::generate_format_desc_(const share::ObBackupDest &dest, sh
   int ret = OB_SUCCESS;
   schema::ObSchemaGetterGuard schema_guard;
   const schema::ObTenantSchema *tenant_schema = nullptr;
-  // TODO: wangxiaohui.wxh, pass GCONF and GCTX to class.
+
+  // TODO: pass GCONF and GCTX to class.
+
   if (OB_ISNULL(GCTX.schema_service_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("invalid argument", K(ret), K(GCTX.schema_service_));
diff --git a/src/share/backup/ob_backup_manager.cpp b/src/share/backup/ob_backup_manager.cpp
index 26d0d82501..de7837c958 100644
--- a/src/share/backup/ob_backup_manager.cpp
+++ b/src/share/backup/ob_backup_manager.cpp
@@ -787,7 +787,9 @@ int ObBackupInfoChecker::get_item_count_(const uint64_t tenant_id, int64_t &item
 int ObBackupInfoChecker::get_status_line_count_(const uint64_t tenant_id, int64_t &status_count)
 {
   int ret = OB_SUCCESS;
-  // TODO: wangxiaohui.wxh, to remove
+
+  // TODO: to remove.
+
 #if 0
   ObSqlString sql;
   SMART_VAR(ObMySQLProxy::ReadResult, res) {
@@ -929,7 +931,7 @@ int ObBackupInfoChecker::insert_log_archive_status_(
     common::ObMySQLTransaction &trans, const uint64_t tenant_id)
 {
   int ret = OB_SUCCESS;
-  // TODO: wangxiaohui.wxh, to remove
+  // TODO: to remove.
 #if 0
   ObSqlString sql;
   int64_t affected_rows = -1;
diff --git a/src/share/backup/ob_backup_operator.h b/src/share/backup/ob_backup_operator.h
index acd46e76d2..33c691efb6 100644
--- a/src/share/backup/ob_backup_operator.h
+++ b/src/share/backup/ob_backup_operator.h
@@ -85,7 +85,7 @@ private:
 
 };
 
-// TODO(wangxiaohui.wxh): move functions in ObBackupInfoOperator into ObTenantBackupInfoOperation.
+  // TODO: merge ObBackupInfoOperator into ObTenantBackupInfoOperation.
 class ObBackupInfoOperator final
 {
 public:
diff --git a/src/share/backup/ob_backup_serialize_provider.h b/src/share/backup/ob_backup_serialize_provider.h
index fb53eb1f82..b2caec6527 100644
--- a/src/share/backup/ob_backup_serialize_provider.h
+++ b/src/share/backup/ob_backup_serialize_provider.h
@@ -38,7 +38,7 @@ public:
 
 
 // Wrapper backup serialize data with common backup header.
-// TODO: wangxiaohui.wxh, support deserialize according to different version.
+  // TODO: support deserialize according to different version.
 class ObBackupSerializeHeaderWrapper final : public ObIBackupSerializeProvider
 {
 public:
diff --git a/src/share/backup/ob_backup_store.cpp b/src/share/backup/ob_backup_store.cpp
index 1e0ed7922e..b83560be42 100644
--- a/src/share/backup/ob_backup_store.cpp
+++ b/src/share/backup/ob_backup_store.cpp
@@ -500,7 +500,7 @@ int ObBackupDestMgr::generate_format_desc_(
   schema::ObSchemaGetterGuard schema_guard;
   share::ObBackupPathString root_path;
   const schema::ObTenantSchema *tenant_schema = nullptr;
-  // TODO: wangxiaohui.wxh, pass GCONF and GCTX to class.
+  // TODO: pass GCONF and GCTX to class.
   if (OB_ISNULL(GCTX.schema_service_)) {
     ret = OB_ERR_UNEXPECTED;
     LOG_WARN("invalid argument", K(ret), K(GCTX.schema_service_));
diff --git a/src/share/backup/ob_tenant_archive_mgr.cpp b/src/share/backup/ob_tenant_archive_mgr.cpp
index 2386706ad2..f07d29a9a5 100644
--- a/src/share/backup/ob_tenant_archive_mgr.cpp
+++ b/src/share/backup/ob_tenant_archive_mgr.cpp
@@ -22,7 +22,7 @@ using namespace share;
 // round op
 int ObTenantArchiveMgr::get_tenant_current_round(const int64_t tenant_id, const int64_t incarnation, ObTenantArchiveRoundAttr &round_attr)
 {
-  // TODO: fix get round from other channel
+  // Only one dest is supported now.
   const int64_t fake_dest_no = 0;
   return get_dest_round_by_dest_no(tenant_id, fake_dest_no, round_attr);
 }
diff --git a/src/share/restore/ob_restore_uri_parser.h b/src/share/restore/ob_restore_uri_parser.h
index 083456b6b0..0db07eba8f 100644
--- a/src/share/restore/ob_restore_uri_parser.h
+++ b/src/share/restore/ob_restore_uri_parser.h
@@ -68,7 +68,6 @@ class ObPhysicalRestoreUriParser
 public:
   ObPhysicalRestoreUriParser() = default;
   ~ObPhysicalRestoreUriParser() = default;
-  // TODO: wangxiaohui.wxh, filter same path
   static int parse(
     const common::ObString &multi_uri,
     common::ObArenaAllocator &allocator,