Adding Security Information to Configuration Files

To enable security on HDP, you must add optional information to various configuration files.

Before you begin, set JSVC_Home in hadoop-env.sh.

For RHEL/CentOS/Oracle Linux:
```
export JSVC_HOME=/usr/libexec/bigtop-utils
```

For SLES and Ubuntu:

export JSVC_HOME=/usr/hdp/current/bigtop-utils