apache pig - Loading json using elephantbird - error with simple task -

i have problem loading data test , analyze. i'm using

https://www.reddit.com/r/datasets/comments/3oiv9z/reddit_september_comment_archive_is_now_available/

after using getting 10000 lines file try load them pig.

even simple return error.

register '/user/cloudera/json-simple-1.1.1.jar' register '/user/cloudera/elephant-bird-pig-4.1.jar' register '/user/cloudera/elephant-bird-hadoop-compat-4.1.jar'  = load '/user/cloudera/top' using com.twitter.elephantbird.pig.load.jsonloader() (json:map[]); 

error code:

main class [org.apache.oozie.action.hadoop.pigmain], exit code [2]

try running this

register 'elephant-bird-pig-4.1.jar'; register 'elephant-bird-hadoop-compat-4.1.jar';  input = load '/input/file' using com.twitter.elephantbird.pig.load.jsonloader('-nestedload') input_map;