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