Allow multiple listener HTTP ports

[apatrida]

It is possible to have a different listening ports so that we can do nice things with them later. For example, create a port for user queries, one for admin, and the default one for Solr internal cluster communication.

[stephlag]

We would be really interested by this feature.
Do you have any idea of what are the challenges have to be tackled?

[apatrida]

I think it might be fairly simple, have to add configuration for it, and then wrap the same handlers. I think they can be shared. If each port would have different rates limiting then it would be more complicated.