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From "Anup Ahire (JIRA)" <j...@apache.org>
Subject [jira] [Created] (PIG-4023) BigDec/Int sort is broken
Date Thu, 19 Jun 2014 02:16:25 GMT
Anup Ahire created PIG-4023:
-------------------------------

             Summary: BigDec/Int sort is broken
                 Key: PIG-4023
                 URL: https://issues.apache.org/jira/browse/PIG-4023
             Project: Pig
          Issue Type: Bug
    Affects Versions: 0.12.0
            Reporter: Anup Ahire


BigDec/Int sort seems broken. I am getting following errors.

java.lang.ClassCastException: java.math.BigInteger incompatible with java.lang.Double
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigBigIntegerRawComparator.compare(PigBigIntegerRawComparator.java:99)
	at java.util.Arrays.binarySearch(Arrays.java:700)
	at java.util.Arrays.binarySearch(Arrays.java:305)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:81)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:60)
	at org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:689)
	at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
	at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Map.collect(PigGenericMapReduce.java:122)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:284)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:277)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:140)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:751)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:368)
	----------------------------------------------------------------------------

	java.lang.ClassCastException: java.math.BigDecimal incompatible with java.lang.Double
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigBigDecimalRawComparator.compare(PigBigDecimalRawComparator.java:99)
	at java.util.Arrays.binarySearch(Arrays.java:700)
	at java.util.Arrays.binarySearch(Arrays.java:305)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:81)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.partitioners.WeightedRangePartitioner.getPartition(WeightedRangePartitioner.java:60)
	at org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:689)
	at org.apache.hadoop.mapreduce.task.TaskInputOutputContextImpl.write(TaskInputOutputContextImpl.java:89)
	at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.write(WrappedMapper.java:112)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Map.collect(PigGenericMapReduce.java:122)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:284)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:277)
	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:140)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:751)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:368)

	
	PigBig(Decimal/Intger)RawComparator wrongly casts BigInteger and BigDecimal to Double.

Also, Big(Decimal/Integer)Writable classes are not using buffer offset and length while initializing
ByteArrayInputStream in compare method



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