Thanks for you suggestion, it is a good idea! [email protected] <[email protected]> 于2019年12月3日周二 下午4:56写道：
> Yes, it is a good design. > I have a suggestion, mailing list can not display picture, how about paste > the picture in to github issue? > > ------------------ > > Liang Zhang (John) > Apache ShardingSphere & Dubbo > > > Zhiyi Yan <[email protected]> 于2019年12月3日周二 上午11:08写道： > > > Hi ShardingSphere community, > > > > We are going to add a new feature - shadow database, this feature is > > designed to allow dirty data to be written to the shadow database when > > applying the online environment for pressure measurement, the relevant > > issue is : > > https://github.com/apache/incubator-shardingsphere/issues/3269 > > > > We want to do this through SQL parse and add router, add a tag field in > > sql, and according to this field, route to shadow database. > > > > Here is a simple design，and we chose the second way. because ThreadLocal > > might introduce other problems. > > > > [image: sharding-shadow.png] > > > > Comments or Suggestions on this design are welcome! > > > > Thanks! > > -- > > Zhiyi Yan (Zhyee) > > Apache ShardingSphere > > > -- Zhiyi Yan (Zhyee) Apache ShardingSphere
