(OPTIONAL) Back up Oozie configuration files and save them to a location
outside the MapR installation. Configuration properties are located in
/opt/mapr/oozie/oozie-<version>/conf/. After upgrading, you can reapply
changes to the updated Oozie installation using the backup.
For upgrades without the Installer:
Remove the old share libraries and examples from the following directories:
maprfs:///oozie/share
maprfs:///user//examples
For upgrades from MEP 3.0.x to MEP 4.0 (or later): If you are upgrading
Oozie 4.3.0 on a secure cluster and you have not already configured SSL on your
Oozie server and client, you must perform the following steps:
Starting from 1808 release, MEP 4.1.2, MEP 5.0.1, MEP 6.0.0 and newer versions, in case of a version update, configuration from a previously installed version of Oozie is stored in a folder with an old version timestamp.