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All the custom configuration and interpreters are lost after zeppelin restart

Re: All the custom configuration and interpreters are lost after zeppelin restart

The same here, 2 days ago after upgrading Ambari from 2.5.0.3 to 2.6.2, we lost all our Zeppelin interpreter settings, livy was renamed to livy2, and spark to spark2 (ending up with two spark2 interpreters). For the time being one solution is to set zeppelin.interpreter.config.upgrade=false after upgrading Ambari but before restarting Zeppelin. Or backup /etc/zeppelin/conf/interpreter.json and restore the file after upgrade. Anyway, backups are always good to do before any upgrade!