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Posted to dev@apex.apache.org by "David Yan (JIRA)" <ji...@apache.org> on 2016/03/22 22:27:25 UTC
[jira] [Resolved] (APEXCORE-326) Iteration causes problems when
there are multiple streams between two operators
[ https://issues.apache.org/jira/browse/APEXCORE-326?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
David Yan resolved APEXCORE-326.
--------------------------------
Resolution: Fixed
Assignee: Bhupesh Chawda (was: David Yan)
Fix Version/s: 3.3.1
3.4.0
> Iteration causes problems when there are multiple streams between two operators
> -------------------------------------------------------------------------------
>
> Key: APEXCORE-326
> URL: https://issues.apache.org/jira/browse/APEXCORE-326
> Project: Apache Apex Core
> Issue Type: Bug
> Reporter: Bhupesh Chawda
> Assignee: Bhupesh Chawda
> Fix For: 3.4.0, 3.3.1
>
> Attachments: APEXCORE-326.patch
>
>
> Consider the following dag:
> {code:title=Application.java|borderStyle=solid}
> public void populateDAG(DAG dag, Configuration conf)
> {
> SampleInputOperator source = dag.addOperator("Source", SampleInputOperator.class);
> SampleOperator op1 = dag.addOperator("Op1", SampleOperator.class);
> SampleOperator op2 = dag.addOperator("Op2", SampleOperator.class);
> DefaultDelayOperator<Integer> delay = dag.addOperator("Delay", DefaultDelayOperator.class);
> dag.addStream("Source", source.output, op1.input1);
> dag.addStream("Stream1", op1.output1, op2.input1);
> dag.addStream("Stream2", op1.output2, op2.input2);
> dag.addStream("Op to Delay", op2.delayOutput, delay.input);
> dag.addStream("Delay to Op", delay.output, op1.input2);
> }
> {code}
> This causes the validation to fail causing "Loops in Dag" error message, even in the presence of delay operators.
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