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https://issues.apache.org/jira/browse/PIG-5444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17785674#comment-17785674
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Koji Noguchi commented on PIG-5444:
-----------------------------------
[~rohini] , should I add a predecessor check to prevent this merge ?
> TestFRJoin.testFRJoinOut7 and testFRJoinOut8 failing with Edge already
> defined error on Tez
> -------------------------------------------------------------------------------------------
>
> Key: PIG-5444
> URL: https://issues.apache.org/jira/browse/PIG-5444
> Project: Pig
> Issue Type: Bug
> Components: tez
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Major
>
> With Tez, when testing individual tests (TestFRJoin.testFRJoinOut7 and
> testFRJoinOut8) separately, they pass the tests. But when entire TestFRJoin
> is run, these two tests on Tez are failing with
> {noformat}
> Unable to open iterator for alias E
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to
> open iterator for alias E
> at org.apache.pig.PigServer.openIterator(PigServer.java:1024)
> at org.apache.pig.test.TestFRJoin.testFRJoinOut7(TestFRJoin.java:409)
> Caused by: org.apache.pig.PigException: ERROR 1002: Unable to store alias E
> at org.apache.pig.PigServer.storeEx(PigServer.java:1127)
> at org.apache.pig.PigServer.store(PigServer.java:1086)
> at org.apache.pig.PigServer.openIterator(PigServer.java:999)
> Caused by:
> org.apache.pig.backend.hadoop.executionengine.JobCreationException: ERROR
> 2017: Internal error creating job configuration.
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezJobCompiler.getJob(TezJobCompiler.java:153)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezJobCompiler.compile(TezJobCompiler.java:81)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezLauncher.launchPig(TezLauncher.java:200)
> at
> org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.launchPig(HExecutionEngine.java:290)
> at org.apache.pig.PigServer.launchPlan(PigServer.java:1479)
> at org.apache.pig.PigServer.executeCompiledLogicalPlan(PigServer.java:1464)
> at org.apache.pig.PigServer.storeEx(PigServer.java:1123)
> Caused by: java.lang.IllegalArgumentException: Edge [scope-632 :
> org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor] ->
> [scope-628 :
> org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor] ({
> BROADCAST : org.apache.tez.runtime.library.input.UnorderedKVInput >>
> PERSISTED >> org.apache.tez.runtime.library.output.UnorderedKVOutput >>
> NullEdgeManager }) already defined!
> at org.apache.tez.dag.api.DAG.addEdge(DAG.java:296)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezDagBuilder.visitTezOp(TezDagBuilder.java:410)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.plan.TezOperator.visit(TezOperator.java:265)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.plan.TezOperator.visit(TezOperator.java:56)
> 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.tez.TezJobCompiler.buildDAG(TezJobCompiler.java:69)
> at
> org.apache.pig.backend.hadoop.executionengine.tez.TezJobCompiler.getJob(TezJobCompiler.java:120)
> {noformat}
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