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Posted to dev@storm.apache.org by "James Lampton (JIRA)" <ji...@apache.org> on 2014/06/24 03:42:24 UTC

[jira] [Updated] (STORM-368) Trident groupBy().aggregate() produces no results if Spout.nextTuple always emits

     [ https://issues.apache.org/jira/browse/STORM-368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Lampton updated STORM-368:
--------------------------------

    Attachment: TestAggregate.java

Demonstration of issue.

> Trident groupBy().aggregate() produces no results if Spout.nextTuple always emits
> ---------------------------------------------------------------------------------
>
>                 Key: STORM-368
>                 URL: https://issues.apache.org/jira/browse/STORM-368
>             Project: Apache Storm (Incubating)
>          Issue Type: Bug
>    Affects Versions: 0.9.2-incubating
>            Reporter: James Lampton
>         Attachments: TestAggregate.java
>
>
> I was debugging an issue with Pig-Squeal and noticed that my Combine Aggregators weren't working with the RandomSentenceSpout.  After some investigation, I discovered that no values are emitted from the aggregate if the underlying Spout always emits tuples.
> I will attach a test case to demonstrate shortly.



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