[
https://issues.apache.org/jira/browse/PIG-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14520992#comment-14520992
]
Mohit Sabharwal commented on PIG-4421:
--------------------------------------
Could you clarify why we need to replace POSkewedJoin by LRA, GRA, PKG and
FOREACH operators to fix TestSkewedJoin#testSkewedJoinWithGroup ?
Currently {{POSkewedJoin}} is converted to RDDs using SkewedJoinConverter,
which is calling {{JavaPairRDD.join(JavaPairRDD)}}. Why is that not working for
TestSkewedJoin#testSkewedJoinWithGroup ?
> implement visitSkewedJoin in SparkCompiler
> ------------------------------------------
>
> Key: PIG-4421
> URL: https://issues.apache.org/jira/browse/PIG-4421
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: liyunzhang_intel
> Assignee: liyunzhang_intel
> Fix For: spark-branch
>
> Attachments: PIG-4421.patch, PIG-4421_2.patch, PIG-4421_3.patch
>
>
> If visitSkewedJoin is not implemented, following unittests will fail.
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinWithGroup
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinMapKey
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinManyReducers
> org.apache.pig.test.TestSkewedJoin.testNonExistingInputPathInSkewJoin
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinOneValue
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinWithNoProperties
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinEmptyInput
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinNullKeys
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinOuter
> org.apache.pig.test.TestSkewedJoin.testRecursiveFileListing
> org.apache.pig.test.TestSkewedJoin.testSkewedJoinReducers
> org.apache.pig.test.TestJoinSmoke.testSkewedJoinWithGroup
> org.apache.pig.test.TestJoinSmoke.testSkewedJoinOuter
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
