10. Upgrade WebHCat (Templeton)

Remove old Templeton packages. On the Templeton host machine, execute the following commands:

For RHEL/CentOS:

yum remove templeton\*

Install WebHCat.

For RHEL/CentOS:

yum install webhcat-tar-hive webhcat-tar-pig

For SLES:

zypper install webhcat-tar-hive webhcat-tar-pig

For Ubuntu:

apt-get install webhcat-tar-hive webhcat-tar-pig

Also see the instructions on manually deploying WebHCat instance provided here.

Start WebHCat. On the WebHCat host machine, execute the following command:

sudo su -l $WEBHCAT_USER -c "/usr/lib/hcatalog/sbin/webhcat_server.sh start"

Smoke test WebHCat. On the WebHCat host machine, execute the following command:
```
 http://$WEBHCAT_HOST_MACHINE:50111/templeton/v1/status 
```
Remove shared libraries from old Templeton installation. On the WebHCat host machine, execute the following command:
```
sudo su -l $HDFS_USER -c "hadoop dfs -rmr -skipTrash /apps/templeton"
rm -rf /usr/share/HDP-templeton 
                    
```
where
- $WEBHCAT_USER is the WebHCat Service user. For example, hcat.
- $HDFS_USER is the HDFS Service user. For example, hdfs.
You must replace your configuration after upgrading. Copy /etc/webhcat/conf from the template to the conf directory in webhcat hosts.