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Posted to dev@shardingsphere.apache.org by Juan Pan <pa...@apache.org> on 2020/01/03 10:50:10 UTC
Re:[Discuss] Add new feature - shadow database
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: panjuan@apache.org
On 12/3/2019 11:08，Zhiyi Yan<ca...@gmail.com> 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
Re: [Discuss] Add new feature - shadow database
Posted by "zhangliang@apache.org" <zh...@apache.org>.
Well done.
We can talk about for next step which about if shadow database crashed
by stress test. Maybe circuit breaker is a good idea.
------------------
Liang Zhang (John)
Apache ShardingSphere & Dubbo
Zhiyi Yan <ca...@gmail.com> 于2020年1月6日周一 上午10:59写道：
> Hi Juan,
>
> Thanks! I am very glad to contribute new feature to ShardingSphere, And
> it gave me a better understanding of the technical details
> of ShardingSphere.
>
> We'll continue to improve this feature, look forward to growing together
> with the community！
>
> Juan Pan <pa...@apache.org> 于2020年1月3日周五 下午6:50写道：
>
> > 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: panjuan@apache.org
> >
> >
> >
> >
> > On 12/3/2019 11:08，Zhiyi Yan<ca...@gmail.com> 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
> >
>
>
> --
> Zhiyi Yan (Zhyee)
> Apache ShardingSphere
>
Re: [Discuss] Add new feature - shadow database
Posted by Zhiyi Yan <ca...@gmail.com>.
Hi Juan,
Thanks! I am very glad to contribute new feature to ShardingSphere, And
it gave me a better understanding of the technical details
of ShardingSphere.
We'll continue to improve this feature, look forward to growing together
with the community！
Juan Pan <pa...@apache.org> 于2020年1月3日周五 下午6:50写道：
> 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: panjuan@apache.org
>
>
>
>
> On 12/3/2019 11:08，Zhiyi Yan<ca...@gmail.com> 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
>
--
Zhiyi Yan (Zhyee)
Apache ShardingSphere