Integrate Hue with Oozie

About this task

Complete the following steps to integrate Hue with Oozie:

Procedure

Edit the hue.ini file to configure the location where the Oozie service is running.

[liboozie]   
# The URL (host IP address) where the Oozie service is running. This is required in order for # users to submit jobs. 
oozie_url=http://<ip_address>:11000/oozie

Enable user impersonation for Oozie. To enable user impersonation in Oozie through Hue:
1. Add the following lines to the oozie-site.xml file:
```
<property> <name>oozie.service.ProxyUserService.proxyuser.<default_user>.hosts</name> <value>*</value> </property>   <property> <name>oozie.service.ProxyUserService.proxyuser.<default_user>.groups</name> <value>*</value> </property>
```
  In most cases, mapr is the <default_user>. This should be the same default user that is specified in the hue.ini and the core-site.xml.
2. Restart Oozie. To restart Oozie, first stop Oozie then start it:
```
maprcli node services -name oozie -action stop -nodes <ip_address> maprcli node services -name oozie -action start -nodes <ip_address>
```
  To verify that the Oozie server started, enter:
```
lsof -i:11000
```
  The output from this command should look similar to this:
```
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 16644 mapr 35u IPv6 69926776 0t0 TCP *:irisa (LISTEN)
```
  You can also check Oozie logs to verify that Oozie started. The log is found here: /opt/mapr/oozie/oozie-3.3.2/logs/oozie.log
Perform any additional Hue configurations and then restart Hue so that the changes will take effect. See Starting the Hue Webserver.