org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: E: New For Each(false,false,false,false)[bag] - scope-997 Operator Key: scope-997): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: Pre Combiner Local Rearrange[tuple]{Unknown} - scope-1027 Operator Key: scope-1027): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: D: Filter[bag] - scope-959 Operator Key: scope-959): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Error while executing ForEach at [C[398,4]]

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    org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: E: New For Each(false,false,false,false)[bag] - scope-997 Operator Key: scope-997): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: Pre Combiner Local Rearrange[tuple]{Unknown} - scope-1027 Operator Key: scope-1027): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: D: Filter[bag] - scope-959 Operator Key: scope-959): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Error while executing ForEach at [C[398,4]]
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    Root Cause Analysis

    1. java.io.IOException

      Could not find schema in UDF context

      at org.apache.pig.builtin.JsonLoader.prepareToRead()
    2. org.apache.pig
      PigRecordReader.nextKeyValue
      1. org.apache.pig.builtin.JsonLoader.prepareToRead(JsonLoader.java:117)
      2. org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initNextRecordReader(PigRecordReader.java:257)
      3. org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:205)
      3 frames
    3. org.apache.tez
      MRReaderMapReduce.next
      1. org.apache.tez.mapreduce.lib.MRReaderMapReduce.next(MRReaderMapReduce.java:119)
      1 frame
    4. org.apache.pig
      PigProcessor.run
      1. org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POSimpleTezLoad.getNextTuple(POSimpleTezLoad.java:140)
      2. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      3. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POFilter.getNextTuple(POFilter.java:90)
      4. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      5. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNextTuple(POForEach.java:256)
      6. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      7. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POFilter.getNextTuple(POFilter.java:90)
      8. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      9. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POPreCombinerLocalRearrange.getNextTuple(POPreCombinerLocalRearrange.java:121)
      10. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      11. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNextTuple(POForEach.java:256)
      12. org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
      13. org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POLocalRearrange.getNextTuple(POLocalRearrange.java:287)
      14. org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POLocalRearrangeTez.getNextTuple(POLocalRearrangeTez.java:127)
      15. org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.runPipeline(PigProcessor.java:376)
      16. org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.run(PigProcessor.java:241)
      16 frames
    5. org.apache.tez
      TaskRunner2Callable$1.run
      1. org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:370)
      2. org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:73)
      3. org.apache.tez.runtime.task.TaskRunner2Callable$1.run(TaskRunner2Callable.java:61)
      3 frames
    6. Java RT
      Subject.doAs
      1. java.security.AccessController.doPrivileged(Native Method)
      2. javax.security.auth.Subject.doAs(Subject.java:422)
      2 frames
    7. Hadoop
      UserGroupInformation.doAs
      1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
      1 frame
    8. org.apache.tez
      CallableWithNdc.call
      1. org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:61)
      2. org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
      3. org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
      3 frames
    9. Java RT
      Thread.run
      1. java.util.concurrent.FutureTask.run(FutureTask.java:266)
      2. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      3. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      4. java.lang.Thread.run(Thread.java:745)
      4 frames