org.apache.hadoop.mapred.YarnChild

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    • org.apache.hadoop.mapred.YarnChild: Exception running child : java.io.IOException: Initialization of all the collectors failed. Error in last collector was :null at org.apache.hadoop.mapred.MapTask.createSortingCollector(MapTask.java:414) at org.apache.hadoop.mapred.MapTask.access$100(MapTask.java:81) at org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:698) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:770) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:415) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.NullPointerException at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.init(MapTask.java:1012) at org.apache.hadoop.mapred.MapTask.createSortingCollector(MapTask.java:402)

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