The work in SOLR-14702 has left us with some awkward phrasing (which is still better than what it was) around non-SolrCloud clusters that I've offered to help fix.
I think we've struggled for years to find a good name for non-SolrCloud clusters and we've used a number of variations: "legacy replication" (which it isn't, since PULL replicas use the same thing), "Standalone mode" (which it isn't because it's a cluster), now "leader/follower mode" (which could be confusing because SolrCloud has leaders). Yesterday I thought about what really differentiates a SolrCloud cluster and a non-SolrCloud cluster and it occurred to me that a key difference is the former is coordinated by ZooKeeper, while the latter is not. That led me to think that perhaps "coordinated mode" can someday be a better replacement for the term "SolrCloud", while "uncoordinated mode" could be a replacement today for all these other non-SolrCloud mode variations. I've opened https://issues.apache.org/jira/browse/SOLR-14716 and will create a branch for work in progress, but before I forge too far ahead, I want to draw attention to it first to give a chance for discussion so we're in agreement. Thanks, Cassandra
