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From "Brandon Williams (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-3684) Composite Column Support for PIG
Date Wed, 29 Feb 2012 20:37:58 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3684?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Brandon Williams resolved CASSANDRA-3684.
-----------------------------------------

    Resolution: Fixed

Committed, thanks!
                
> Composite Column Support for PIG
> --------------------------------
>
>                 Key: CASSANDRA-3684
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3684
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Benjamin Coverston
>            Assignee: Janne Jalkanen
>             Fix For: 1.0.9, 1.1.0
>
>         Attachments: 3684-jalkanen-test-v2.txt, 3684-jalkanen-test.txt, 3684-jalkanen.txt
>
>
> It appears that some changes need to be made to support CompositeColumns. Right now if
you try to load and use a column family that utilizes composite columns you get the following
exception[1].
> It appears to me that we need to modify the storage handler for Pig to support this scenario.
> [1]
> ================================================================================
> Backend error message
> ---------------------
> java.lang.RuntimeException: Unexpected data type -1 found in stream.
> 	at org.apache.pig.data.BinInterSedes.writeDatum(BinInterSedes.java:478)
> 	at org.apache.pig.data.BinInterSedes.writeTuple(BinInterSedes.java:541)
> 	at org.apache.pig.data.BinInterSedes.writeBag(BinInterSedes.java:522)
> 	at org.apache.pig.data.BinInterSedes.writeDatum(BinInterSedes.java:361)
> 	at org.apache.pig.data.BinInterSedes.writeTuple(BinInterSedes.java:541)
> 	at org.apache.pig.data.BinInterSedes.writeDatum(BinInterSedes.java:357)
> 	at org.apache.pig.data.BinSedesTuple.write(BinSedesTuple.java:57)
> 	at org.apache.pig.impl.io.PigNullableWritable.write(PigNullableWritable.java:123)
> 	at org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:90)
> 	at org.apache.hadoop.io.serializer.WritableSerialization$WritableSerializer.serialize(WritableSerialization.java:77)
> 	at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.collect(MapTask.java:1061)
> 	at org.apache.hadoop.mapred.MapTask$NewOutputCollector.write(MapTask.java:691)
> 	at org.apache.hadoop.mapreduce.TaskInputOutputContext.write(TaskInputOutputContext.java:80)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapReduce$Map.collect(PigMapReduce.java:116)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:239)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:232)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:53)
> 	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> 	at org.apache.hadoop.mapred.Child$4.run(Child.java:272)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
> 	at org.apache.hadoop.mapred.Child.main(Child.java:266)
> Backend error message
> ---------------------
> java.lang.Throwable: Child Error
> 	at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
> Caused by: java.io.IOException: Task process exit with nonzero status of 65.
> 	at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)

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