cache := store.lock()
	defer store.unlock()

	if store.getUsersSysType() == MinIOUsersSysType {
		m := map[string]GroupInfo{}
		err = store.loadGroups(ctx, m)
		if err != nil {
			return
		}
		cache.iamGroupsMap = m
		cache.updatedAt = time.Now()
		for k := range cache.iamGroupsMap {
			res = append(res, k)
		}
	}

	if store.getUsersSysType() == LDAPUsersSysType {