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via GitHub by wsshopping
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
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PipeMapRed.waitOutputThreads(): subprocess failed with code 2
java.lang.RuntimeException: PipeMapRed.waitOutputThreads(): subprocess failed with code 2	at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:322)	at org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:535)	at org.apache.hadoop.streaming.PipeMapper.close(PipeMapper.java:130)	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61)	at org.apache.hadoop.streaming.PipeMapRunner.run(PipeMapRunner.java:34)	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAs(Subject.java:415)	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)