For #1, the answer is yes.

For #2, See TD's comments on SPARK-7661

Cheers


On Fri, May 22, 2015 at 6:58 PM, Saiph Kappa <saiph.ka...@gmail.com> wrote:

> Hi,
>
> 1. Dynamic allocation is currently only supported with YARN, correct?
>
> 2. In spark streaming, it is possible to change the number of executors
> while an application is running? If so, can the allocation be controlled by
> the application, instead of using any already defined automatic policy?
> That is, I want to be able to get more executors or decommission executors
> on demand. Is there some way to achieve this?
>
> Thanks.
>

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