Enable the Oozie UI

You must manually create an Ooze UI when using the latest versions of Ambari and HDP.

Ext JS is GPL licensed software and is no longer included in builds of HDP 2.6 and higher. Because of this, the Oozie WAR file is not built to include the Ext JS-based user interface unless Ext JS is manually installed on the Oozie server. If you add Oozie using Ambari 2.6.1.0 to an HDP 2.6.4 or greater stack, no Oozie UI will be available by default. If you want an Oozie UI, you must manually install Ext JS on the Oozie server host, then restart Oozie. During the restart operation, Ambari re-builds the Oozie WAR file and will include the Ext JS-based Oozie UI.

Download and install the Ext JS package.

CentOS RHEL Oracle Linux 6:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/centos6/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

CentOS RHEL Oracle Linux 7:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/centos7/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

CentOS RHEL Oracle Linux 7 (PPC):

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/repos/centos7-ppc/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

SUSE11SP3:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/suse11sp3/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

SUSE11SP4:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/repos/suse11sp4/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

SLES12:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/sles12/extjs/extjs-2.2-1.noarch.rpm
 rpm -ivh extjs-2.2-1.noarch.rpm

Ubuntu12:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/ubuntu12/pool/main/e/extjs/extjs_2.2-2_all.deb
 dpkg -i extjs_2.2-2_all.deb

Ubuntu14:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/ubuntu14/pool/main/e/extjs/extjs_2.2-2_all.deb
 dpkg -i extjs_2.2-2_all.deb

Ubuntu16:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/ubuntu16/pool/main/e/extjs/extjs_2.2-2_all.deb
 dpkg -i extjs_2.2-2_all.deb

Debian6:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/debian6/pool/main/e/extjs/extjs_2.2-2_all.deb
 dpkg -i extjs_2.2-2_all.deb

Debian7:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/debian7/pool/main/e/extjs/extjs_2.2-2_all.deb
 dpkg -i extjs_2.2-2_all.deb

Debian9:

wget https://archive.cloudera.com/p/HDP-UTILS-GPL/1.1.0.22/repos/debian9/pool/main/libj/libjs-extjs/
libjs-extjs_3.4.0+dfsg1-1_all.deb 
 dpkg -i extjs_3.4.0+dfsg1-1_all.deb

Remove the .war file prep file.
rm /usr/hdp/current/oozie-server/.prepare_war_cmd
Restart Oozie Server from the Ambari UI.
Ambari rebuilds the Oozie WAR file.