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Error java lang runtimeexception pipemapred waitoutputthreads subprocess failed with code

waitOutputThreads( ) : subprocess failed with code 1. I tried looking up what this error means and I found out that this error comes up when there is something wrong with the. You can display logs for your app by running this command: yarn logs - applicationId application_ $ { appid}. in your case yarn logs - applicationId application_ _ 0002. or you can find them in locations like:. This error usually means that the mapper process died. To find out why check the user logs in $ HADOOP_ PREFIX/ logs/ userlogs : there is one directory per job and inside one directory per container. In each container directory. Adding below line to the top of python script made the code work for me. / usr/ bin/ python. I can' t say exactly what your error is, but mine was that I had an unresolved dependency in my python script.

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    Lang subprocess waitoutputthreads

    Namely statsmodels. Error from the log file java. waitOutputThreads( ) : subprocess failed with code 2 at org. To find the actual Python error, go to Job Tracker web UI ( in the case of AWS EMR, port 9100 for AMI 2. x and port 9026 for AMI 3. x) ; find the failed mapper; open its logs; and read the stderr output. share| improve this answer. Job: Task Id : attempt_ _ 0004_ m_ 000000_ 0, Status : FAILED Error: java. waitOutputThreads( ) : subprocess failed with code 1 at org. Job: Task Id : attempt_ _ 0008_ m_ 000001_ 0, Status : FAILED Error: java. waitOutputThreads( ) : subprocess failed with code 127 at org. Error code 1 is a generic error for Hadoop Streaming. You can get this error code for two main reasons: Your Mapper and Reducer scripts are not executable ( include the #!

    / usr/ bin/ python at the beginning of the script). I am having an issue running a simple python code inside hadoop streaming. I have tried all the suggestions in the previous posts with a similar error and still having the issue. added the usr/ bin/ env python; chmod a+ x the. Find the correct path of installed python3: which python3. Assume that the result is: / usr/ bin/ python3. Include - - python- bin argument with in your command: python3 MovieRecommender. py - - python- bin / usr/ bin/ python3 - r.