Hey Andrew, I'm having the same issue. Did you find any fixes for this? It's great it can be changed without a restart... but having to come back in and set this anytime Solr or the server itself is restarted isn't great. 🙂 EDIT: Help from Hortonworks support pointed out that in log4j.properties (either in Ambari if your Solr Cloud is managed there, or directly on server if not) you can adjust the following line from: log4j.rootLogger=INFO, file, CONSOLE Changed to: log4j.rootLogger=WARN, file, CONSOLE That will allow it to retain this change on Solr startup. ... View more