https://community.cloudera.com/t5/Support-Questions/Livy-Job-failing-after-upgrading-cluster-to-HDP-2-6-3/m-p/199409#M161448 <P>I already did a few reboots, but it didn't help. I upgraded my HDP cluster via Ambari. I'm using Spark 1.6.3, so I don't need to use livy2, right? It seems to be an issue in Livy 0.4.0</P> Mon, 18 Dec 2017 15:09:35 GMT dmueller1607 2017-12-18T15:09:35Z