What kind of help do you need in the orchestration module? The orchestration module provides functions: writing and reading key-value pair.
Nicholas <[email protected]> 于2020年1月17日周五 下午4:02写道： > Hi zhaojun, > About ColumnMeta storage, we need ShardingSphere's orchestration module > to help register column metadata. And at best establish metadata module to > manage metadata of table, column etc. Field property like primary key etc > should be put into ColumnMeta to maintain. At last, could you please > provide the design document of MetaData Model & MetaData service, and take > distributed scenario into consideration. > > Thanks, > Nicholas > > On 2020/01/15 04:26:48, zhaojun <[email protected]> wrote: > > Hi, all > > > > I have created a issue[1] for discussing about optimizing metadata model. > > > > Currently ShardingSphere metadata was only used by sharding & encrypt > scenario, > > master-slave case have to get them from underlying ResultSet meta in > sharding-proxy. > > It is better to establish an global MetaData mechanism which provide > > uniform interface for initialization, read, refreshing instead of > distinguish with usage scenario > > > > I think it would be a big refactor for sharding-jdbc & sharding-proxy. > > assume that task list is as below > > > > 1. investigate the usage of current metadata, clarify the function list > of metadata (SQLParse, Route,Rewrite etc) > > 2. design a MetaData Model & MetaData service, at first only consider > about storing in memory > > 3. then consider about migrating to zookeeper or other registration > > > > [1]: https://github.com/apache/incubator-shardingsphere/issues/3922 < > https://github.com/apache/incubator-shardingsphere/issues/3922> > > > > Any thought? > > > > ------------------ > > Zhao Jun (cherrylzhao) > > Apache ShardingSphere & ServiceComb > > > > >
