big +1. not only the time unit, but also the data size unit. Best, ----------------------------------- Xiangdong Huang School of Software, Tsinghua University
黄向东 清华大学 软件学院 Jialin Qiao <[email protected]> 于2020年7月12日周日 上午10:20写道： > Hi, > > Yes, keeping them consistent is better. > > Thanks, > -- > Jialin Qiao > School of Software, Tsinghua University > > 乔嘉林 > 清华大学 软件学院 > > > -----原始邮件----- > > 发件人: "孙泽嵩" <[email protected]> > > 发送时间: 2020-07-11 20:18:24 (星期六) > > 收件人: [email protected] > > 抄送: > > 主题: Re: Naming of parameters in iotdb-engine.properties > > > > Hi Jialin, > > > > +1. Really good point. > > > > Besides, should we keep the unit of same dimension being the same, for > example: ms for time, KB for capacity. > > > > What do you think? > > > > > > Best, > > ----------------------------------- > > Zesong Sun > > School of Software, Tsinghua University > > > > 孙泽嵩 > > 清华大学 软件学院 > > > > > 2020年7月11日 15:08，Jialin Qiao <[email protected]> 写道： > > > > > > Hi, > > > > > > > > > I met a scenario that a user set the ttl wrongly as second precision, > so he can not query the data. > > > > > > > > > I checked the parameter description in iotdb-engine.properties, it is > described as this: > > > > > > > > > # Default TTL for storage groups that are not set TTL by statements, > in ms. If not set (default), > > > # the TTL will be unlimited. > > > # Notice: if this property is changed, previous created storage group > which are not set TTL will > > > # also be affected. And negative values are accepted, which means you > can only insert future > > > # data. > > > # default_ttl=36000000 > > > > > > > > > I think some users may do not read the descriptions, should we add the > unit to the parameter name? E.g., sstable_size_in_mb in Cassandra. > > > > > > > > > We could rename the default_ttl to default_ttl_in_ms, so as to other > parameters. > > > > > > Thanks, > > > -- > > > Jialin Qiao > > > School of Software, Tsinghua University > > > > > > 乔嘉林 > > > 清华大学 软件学院 > > >
