We are trying to implement archival program for HDFS files and I am getting below oozie error.
JA018 : Main class [org.apache.oozie.action.hadoop.ShellMain], exit code 
The Job Browser lists the job as successful but the workflow shows status Kill with the above error.
So far the only thing I could come up with is that JA018 in the Oozie documentation is listed as "JA018 is output directory exists error in workflow map-reduce action" but I have no clue what this means. I am giving a new directory for output directory.
Can you please help me to get rid of this error ?
When I checked the mapreduce logs , I found below error details.
log4j:ERROR Could not find value for key log4j.appender.TLA
log4j:ERROR Could not instantiate appender named "TLA".
log4j:WARN No appenders could be found for logger (org.apache.hadoop.conf.Configuration.deprecation).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.ShellMain], exit code 
Can you please suggest on this?