- Execute the following command on the Oozie server and client machines: - For RHEL/CentOS: - rpm -e --nopostun oozie-$old_version_number yum install oozie 
- For SLES: - rpm -e --nopostun oozie-$old_version_number zypper remove oozie zypper update oozie-3.3.2.1.3.0.0 zypper se -s oozie - You should see Oozie v3.3.2.1.3.0.0 in the output. Install Oozie v3.3.2.1.3.0.0: - zypper install oozie-3.3.2.1.3.0.0 ![[Important]](../common/images/admon/important.png) - Important - When removing and installing packages, rename those files the - /confdirectory that have- .rpmsaveextension to original to retain the customized configs. Alternatively, you can also use the configuration files (under the- /confdirectory) you backed up before upgrading.
 
- Start Oozie. - sudo su -l $OOZIE_USER -c "cd $OOZIE_LOG_DIR/log; /usr/lib/oozie/bin/oozie-start.sh" - where - $OOZIE_USERis the Oozie Service user. For example,- oozie.
- $OOZIE_LOG_DIRis the directory where Oozie log files are stored (for example:- /var/log/oozie).
 
- Validate Oozie. - oozie admin -$OOZIE_USER http://$fully.qualified.domain.name_for_Oozie_hostmachine:11000/oozie -status - You should see the following output: - System mode: NORMAL 


