Hi again; To answer your questions:
1. I use a ZK browser, so I can see what happens in ZK. https://github.com/DeemOpen/zkui 2. Solr 4.3 is on it's own ZK, on one server. Solr 5.4 is on another ZK, on a different server. No mixing whatsoever. 3. Take <ZK> to mean "ZK root", so, yes /ot is at the root Meanwhile, I have made some "progress", if that's what I could call it. By deleting form ZK all the irrelevant configurations, and leaving only "otac_en", I was able to migrate one collection. Fortunately, for this specific project, only "otac_en" is relevant, so we could live with the deletion of the other configs. However, we can't expect ZK to only ever hold just one config for Solr. -- View this message in context: http://lucene.472066.n3.nabble.com/Migrating-config-found-but-not-mapped-to-collection-tp4295375p4295391.html Sent from the Solr - User mailing list archive at Nabble.com.