async def delete_cpccluster(params_kw={}):
    db = DBPools()
    dbname = 'kboss'
    async with db.sqlorContext(dbname) as sor:
        r = await sor.D('cpccluster', ns)
        debug('delete success');
        return {
            "widgettype":"Message",
            "options":{
                "title":"Delete Success",
                "timeout":3,
                "cwidth":16,
                "cheight":9,
                "message":"ok，记得把关联的节点都解除占用状态 ~"
            }
        }

    debug('Delete failed');
    return {
        "widgettype":"Error",
        "options":{
            "title":"Delete Error",
            "timeout":3,
            "cwidth":16,
            "cheight":9,
            "message":"failed"
        }
    }

ret = await delete_cpccluster(params_kw)
return ret