Which is better? One spark app listening to 10 topics vs. 10 spark apps each listening to 1 topic

[Jianshi Huang]

The Kafka stream has 10 topics and the data rate is quite high (~ 100K/s
per topic).

Which configuration do you recommend?
- 1 Spark app consuming all Kafka topics
- 10 separate Spark app each consuming one topic

Assuming they have the same resource pool.

Cheers,
-- 
Jianshi Huang

LinkedIn: jianshi
Twitter: @jshuang
Github & Blog: http://huangjs.github.com/