Where do you check the output result for both case?

Sent from my iPhone

> On Dec 5, 2017, at 15:36, kant kodali <kanth...@gmail.com> wrote:
> 
> Hi All,
> 
> I have a simple stateless transformation using Dstreams (stuck with the old 
> API for one of the Application). The pseudo code is rough like this
> 
> dstream.map().reduce().forEachRdd(rdd -> {
>      rdd.collect(),forEach(); // Is this necessary ? Does execute fine but a 
> bit slow
> })
> 
> I understand collect collects the results back to the driver but is that 
> necessary? can I just do something like below? I believe I tried both and 
> somehow the below code didn't output any results (It can be issues with my 
> env. I am not entirely sure) but I just would like some clarification on 
> .collect() since it seems to slow things down for me.
> 
> dstream.map().reduce().forEachRdd(rdd -> {
>      rdd.forEach(() -> {} ); // 
> })
> 
> Thanks!
> 
> 
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