Hi George, Actually, putting multiple servers behind a load balancer NOT works right now due to this bug: https://issues.apache.org/jira/browse/LIVY-541 In contrast, for deployments that require high availability, Livy supports session recovery, which ensures that a Spark cluster remains available if the Livy server fails. After a restart, the Livy server can connect to existing sessions and roll back to the state before failing. ... View more