Hello!

On Fri, Aug 1, 2014 at 2:18 PM, Yichun Zhang (agentzh) wrote:
>
> You can try this: https://github.com/juce/lua-resty-shell
>

But for expensive image compression involved with relatively large
data volumn and CPU computation, it is better to be done in a
dedicated daemon process outside your online nginx server.

Regards,
-agentzh

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