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https://issues.apache.org/jira/browse/PIG-5180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15907032#comment-15907032
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Adam Szita commented on PIG-5180:
---------------------------------
Thanks for the review
> MergeSparseJoin fails with Spark exec type
> ------------------------------------------
>
> Key: PIG-5180
> URL: https://issues.apache.org/jira/browse/PIG-5180
> Project: Pig
> Issue Type: Sub-task
> Components: spark
> Reporter: Adam Szita
> Assignee: Adam Szita
> Fix For: spark-branch
>
> Attachments: PIG-5180.0.patch
>
>
> MergeSparseJoin 1 to 6 all fail due to following exception being thrown on
> the frontend side:
> {code}
> Caused by: java.lang.IllegalArgumentException: Can not create a Path from a
> null string
> at org.apache.hadoop.fs.Path.checkPathArg(Path.java:122)
> at org.apache.hadoop.fs.Path.<init>(Path.java:134)
> at
> org.apache.pig.backend.hadoop.executionengine.spark.JobGraphBuilder.setReplicationForMergeJoin(JobGraphBuilder.java:126)
> at
> org.apache.pig.backend.hadoop.executionengine.spark.JobGraphBuilder.visitSparkOp(JobGraphBuilder.java:105)
> at
> org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOperator.visit(SparkOperator.java:140)
> at
> org.apache.pig.backend.hadoop.executionengine.spark.plan.SparkOperator.visit(SparkOperator.java:37)
> at
> org.apache.pig.impl.plan.DependencyOrderWalker.walk(DependencyOrderWalker.java:87)
> at org.apache.pig.impl.plan.PlanVisitor.visit(PlanVisitor.java:46)
> at
> org.apache.pig.backend.hadoop.executionengine.spark.SparkLauncher.launchPig(SparkLauncher.java:224)
> at
> org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.launchPig(HExecutionEngine.java:290)
> ... 33 more
> {code}
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