Oozie action error reporting

[John Armstrong]

Hi everybody.

I'm writing a status-reporting method in my webapp that has some of its 
processing handled by Oozie on the back-end.  Basically, in such a case 
my program polls Oozie about the particular job, then chops the response 
down to the parts that would be useful to report.

When a java action dies due to an exception, the message in the 
exception is reported in the action's descriptor.  It would be nice to 
also have a stack trace, so I was wondering if that would be possible to 
include.  Without it we can use the Hadoop JobTracker URL to look 
through the logs by hand to find the exception, but reporting the full 
exception in the Oozie status would speed up diagnosis.