What's the best way to upgrade solr from 1.2.0 to 1.3.0 ? We have the current index that our users search running on 1.2.0 Solr version.
We would like to upgrade it to 1.3.0? We have Master/Slaves env. What's the best way to upgrade it without affecting the search? Do we need to do it on master or slaves first? Thanks Francis