I had understood that since 4.0, Solr (Lucene) can continue to update an index even while that index is optimizing.
I have discovered in the logs of my SolrJ index maintenance program that this does not appear to actually be true. My dev index is running Solr 5.2.1 and my production indexes are 4.9.1. It's easy enough to fix my build program so no updates happen during my daily optimize, but I'm really hoping to keep it in the background. Have I possibly misconfigured something that turns off the ability to update an optimizing index? Thanks, Shawn
