The Yarn integration in S4 is a available in a "feature branch" for 0.5 and was 
intended as a proof of concept, demonstrating the good match between S4 and 
Yarn.

If you are interested in using S4 0.6 (not yet officially released), you'd need 
to port the code in the S4-25 branch. There is not much to change, mostly 
taking into account the new configurability of the S4 applications. That would 
certainly be a valuable contribution!

Note that there are many working versions of Yarn, and that reliance from S4 on 
a specific version of Yarn could be an issue. The best integration would be a 
pluggable one, but we are still not sure how to devise that. If you have ideas, 
please let us know!

Thanks,

Matthieu


On Apr 2, 2013, at 04:42 , JiHyoun Park wrote:

> Hi
> 
> I am testing the newest release of S4.
> It's fantastic that the stream throughput of S4 0.6.0 has been improved to 
> handle 200K+ messages per sec.!
> However, it seems that S4-25 branch - deploying S4 applications with Yarn - 
> is not included in the 0.6.0 package yet. 
> I already built a system to run S4 applications on Yarn and want to migrate 
> its S4 framework from 0.5.0 to 0.6.0.
> How can I use the 'deploying S4 applications with Yarn' feature on S4 0.6.0?
> 
> Best Regards
> Jihyoun

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