My oozie workflow reports an error:
Output data exceeds its limit 
I learned the solution to this error is to make this change in oozie-site.xml:
However I am not able to find oozie-site.xml in Hue. Can anyone please advice?
For configuration change you have to follow the below steps
1. Cloudera Manager -> Oozie -> Configuration -> Search for "oozie.action.max.output.data" and increase the value and save it
2. Restart the Oozie service
Please also try to use Cloudera Manager navigate to, Oozie > Configuration > Oozie Server Group > Advance > Oozie Server Advanced Configuration Snippet (Safety Valve) for oozie-site.xml