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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2015/03/03 01:47:06 UTC
[jira] [Commented] (PIG-4408) Merge join should support replicated
join as a predecessor
[ https://issues.apache.org/jira/browse/PIG-4408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14344172#comment-14344172 ]
Rohini Palaniswamy commented on PIG-4408:
-----------------------------------------
There is a test failure - TestCollectedGroup.testMapsideGroupWithMergeJoin
{code}
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: E: New For Each(false,false)[bag] - scope-56 Operator Key: scope-56): org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: D: Map side group [tuple]{bytearray} - scope-49 Operator Key: scope-49): org.apache.pig.backend.executionengine.ExecException: ERROR 2176: Error processing right input during merge join
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:316)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNextTuple(POForEach.java:246)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:279)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.cleanup(PigGenericMapBase.java:123)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:148)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
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:1548)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing (Name: D: Map side group [tuple]{bytearray} - scope-49 Operator Key: scope-49): org.apache.pig.backend.executionengine.ExecException: ERROR 2176: Error processing right input during merge join
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:316)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POCollectedGroup.getNextTuple(POCollectedGroup.java:131)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:307)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 2176: Error processing right input during merge join
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.throwProcessingException(POMergeJoin.java:594)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.getNextRightInp(POMergeJoin.java:584)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.getNextRightInp(POMergeJoin.java:548)
at org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POMergeJoin.getNextTuple(POMergeJoin.java:456)
... 1 more
{code}
> Merge join should support replicated join as a predecessor
> ----------------------------------------------------------
>
> Key: PIG-4408
> URL: https://issues.apache.org/jira/browse/PIG-4408
> Project: Pig
> Issue Type: New Feature
> Affects Versions: 0.14.0
> Reporter: Brian Johnson
> Assignee: Brian Johnson
> Fix For: 0.15.0
>
> Attachments: PIG-4408-3.patch, patch, patch
>
>
> Since a replicated join doesn't trigger a reduce or change the output ordering a merge join should work after it
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