: At first, I saw the same exception you got ... but after a little while : I figured out that this is because I was running the program more than : once without deleting everything in the baseDir -- so the zookeeper : server was starting with an existing database already containing the : solr.xml. When MiniSolrCloudCluster is used in Solr tests, the baseDir : is newly created for each test class, so this doesn't happen.
Yeah ... this is interesting. I would definitely suggest that for now you *always* start with a clean baseDir. I've opened an issue to figure out wether MiniSolrCloudCluster should fail if you don't, or make it a supported usecase... https://issues.apache.org/jira/browse/SOLR-8999 -Hoss http://www.lucidworks.com/
