On Fri, Apr 29, 2016 at 8:26 PM, Dulitha Wijewantha <[email protected]>
wrote:

> Hi guys,
> I read the article [1] that details a performance test conducted on CEP
> integration on Storm. I have some questions regarding how this integration
> actually work and how this fits in with the DAS picture.
>
> 1) In the article it says that siddhi runs inside storm. Does this mean
> that we have converted siddhi engine to a bolt to run inside the storm
> environment?
>
Yes

> 2) How is the CEP query broken down into bolts and spouts? In the
> documentation its states we have a bunch of annotations to set bolts and
> spouts for the plan. For example:- do we need to change the way we do a
> window count? Like create streams separately for the spouts or is this
> handled by CEP manager?
>
If partiions are defined, a single query will broke down to multiple bolts.
Otherwise, each query map to a one bolt


> 3) What's the exact difference of Siddhi and Storm? I feel like both have
> the same concepts.
>


https://iwringer.wordpress.com/2015/12/15/cep-vs-streaming-processing-vs-cep-engines-vs-streaming-analytic-engines/

4) In a DAS Deployment - does this mean that the event receiver node is
> going to communicate with storm for processing? Will this incur a
> significant performance hit on the event receiver?
>
Suho, please respond


>
> [1] -
> http://wso2.com/library/articles/2015/12/article-distributed-scaling-of-wso2-complex-event-processor/
>
> Cheers!
>
> --
> Dulitha Wijewantha (Chan)
> Software Engineer - Mobile Development
> WSO2 Inc
> Lean.Enterprise.Middleware
>  * ~Email       [email protected] <[email protected]>*
> *  ~Mobile     +94712112165 <%2B94712112165>*
> *  ~Website   dulitha.me <http://dulitha.me>*
> *  ~Twitter     @dulitharw <https://twitter.com/dulitharw>*
>   *~Github     @dulichan <https://github.com/dulichan>*
>   *~SO     @chan <http://stackoverflow.com/users/813471/chan>*
>



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