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https://issues.apache.org/jira/browse/FLINK-1315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen resolved FLINK-1315.
---------------------------------
Resolution: Fixed
Fixed via ac80458fc089b79f1e793f8760d331a988c407c1
> Spurious failure in compiler due to corrupt branch tracking logic
> -----------------------------------------------------------------
>
> Key: FLINK-1315
> URL: https://issues.apache.org/jira/browse/FLINK-1315
> Project: Flink
> Issue Type: Bug
> Components: Optimizer
> Affects Versions: 0.8-incubating
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.8-incubating
>
>
> The optimizer fails in that case with the following stack trace:
> {code}
> Exception in thread "main" org.apache.flink.compiler.CompilerException: Bug:
> Tracing dams for deadlock detection is broken.
> at
> org.apache.flink.compiler.dag.TwoInputNode.placePipelineBreakersIfNecessary(TwoInputNode.java:618)
> at
> org.apache.flink.compiler.dag.TwoInputNode.instantiate(TwoInputNode.java:553)
> at
> org.apache.flink.compiler.dag.TwoInputNode.addLocalCandidates(TwoInputNode.java:504)
> at
> org.apache.flink.compiler.dag.TwoInputNode.getAlternativePlans(TwoInputNode.java:436)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.TwoInputNode.getAlternativePlans(TwoInputNode.java:305)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.TwoInputNode.getAlternativePlans(TwoInputNode.java:305)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.TwoInputNode.getAlternativePlans(TwoInputNode.java:305)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:268)
> at
> org.apache.flink.compiler.dag.BinaryUnionNode.getAlternativePlans(BinaryUnionNode.java:105)
> at
> org.apache.flink.compiler.dag.BinaryUnionNode.getAlternativePlans(BinaryUnionNode.java:104)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.BulkIterationNode.instantiateCandidate(BulkIterationNode.java:296)
> at
> org.apache.flink.compiler.dag.SingleInputNode.addLocalCandidates(SingleInputNode.java:367)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:315)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.BinaryUnionNode.getAlternativePlans(BinaryUnionNode.java:105)
> at
> org.apache.flink.compiler.dag.BinaryUnionNode.getAlternativePlans(BinaryUnionNode.java:104)
> at
> org.apache.flink.compiler.dag.SingleInputNode.getAlternativePlans(SingleInputNode.java:258)
> at
> org.apache.flink.compiler.dag.DataSinkNode.getAlternativePlans(DataSinkNode.java:194)
> at org.apache.flink.compiler.PactCompiler.compile(PactCompiler.java:561)
> at org.apache.flink.compiler.PactCompiler.compile(PactCompiler.java:466)
> at
> org.apache.flink.client.LocalExecutor.executePlan(LocalExecutor.java:233)
> at
> org.apache.flink.api.java.LocalEnvironment.execute(LocalEnvironment.java:51)
> at
> org.apache.flink.api.scala.ExecutionEnvironment.execute(ExecutionEnvironment.scala:391)
> {code}
> The program that fails in the optimizer is from a user. I have not been able
> to reduce it significantly into a standalone test case that reproduces the
> bug.
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