Our out of the box solr 5.4.1 installation cannot handle the 50gb analytics index anymore. We are using sitecore 8.1 and planning to go to 8.2 but when we tried went to 8.2 we rebuild the indexes but the sight was very unresponsive and was missing items and was too slow. We ended up giving that solr server over 92gb of RAM and saw that java.exe was needing about 60gb to process our massive index. Even then we couldn't get performance back into the site and decided to roll back to 8.1. We looked up options of scaling out horizontally because we cannot keep adding RAM to one solr server. To go to solrcloud we built 3 ubuntu 14.04.5 servers with a 50gb VM disk for the indexes and the other VM disk for the OS, zookeeper, java, tomcat and solr applications. It has 32GBs of RAM (on all 3 servers). When we move to solrcloud on these servers what is the best way to set up the solrcloud environment so they can take the data that already exists in our current solr? We have about 16 indexes for sitecore with the biggest one being analytics (around 45-50gbs). Thanks, Darren Walker
