I may not have been clear, but I understand and fully support their right to charge for software and services. I just haven't worked on any projects for which t

I may not have been clear, but I understand and fully support their right to charge for software and services. I just haven't worked on any projects for which their prices fit in to the calculation. As to documentation on nginx.org that doesn't apply to the open source edition, see http://nginx.org/en/docs/http/ngx_http_upstream_module.html#sticky http://nginx.org/en/docs/http/ngx_http_upstream_module.html#... -- there are quite a few more, that's just the last one I tried to use.