I have 5 independent sites on one machine. I also have another machine running just Java. How can I get all 5 sites to use the same 1 java machine for Solr? Would I install Solr 5 times for each of the sites? Would each Solr instance be installed in each of the sites /home directory; instead of say /usr/local/share. When the apachesolr.modules are installed on each site, how would I have it recognize just it's own instance and not the other 4? Or is there a better way to do this?