However this is a good explanation on how to run multiple spark installations on the same CDH, just adapting to other versions, so it's very valuable.    One point though, does anything change kerberos-wise? I have done the same on different clusters, installing 1.6.3 into one non-kerberized CDH5.4 (Spark 1.3) and a kerberized CDH 5.5.3 (Spark 1.5.0). Doing the same steps as in the non-kerberos installation (and issuing a ticket that allows me to spark-submit application with regular installed CDH Spark version), it fails like this:    Failed to renew token: Kind: HDFS_DELEGATION_TOKEN, Service: ha-hdfs:nameservice1, Ident: (HDFS_DELEGATION_TOKEN xxxx for yyyy)   Could it be completed including steps necessary in a Kerberized installation? Thanks ... View more