Hi Zhiyi and Yan,
Congrats to you！Your contribution and effort made this feature a great
progress. I am glad to see shadow database branch merged into dev branch owing
to your nearly one month’s hard work.
More enhancements like, shadow database for proxy, spring, orchestration and
more integrate tests are expected to do in future.
Hope you could enjoy this journey and learn something from it.
Best wishes,
Trista
Juan Pan (Trista)
Senior DBA & PPMC of Apache ShardingSphere(Incubating)
E-mail: [email protected]
On 12/3/2019 11:08，Zhiyi Yan<[email protected]> wrote：
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.
Comments or Suggestions on this design are welcome!
Thanks!
--
Zhiyi Yan (Zhyee)
Apache ShardingSphere
