On Oozie server machine, install the necessary RPMs.
For RHEL/CentOS:
yum install oozie extjs
For SLES:
zypper install oozie extjs
Add the ExtJS library to the Oozie application.
/usr/lib/oozie/bin/oozie-setup.sh -hadoop 0.20.200 /usr/lib/hadoop -extjs /usr/share/HDP-oozie/ext-2.2.zip
Add LZO JAR file.
/usr/lib/oozie/bin/oozie-setup.sh -hadoop 0.20.200 /usr/lib/hadoop -extjs /usr/share/HDP-oozie/ext-2.2.zip -jars /usr/lib/hadoop/lib/hadoop-lzo-0.5.0.jar