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Posted to dev@crunch.apache.org by "Josh Wills (JIRA)" <ji...@apache.org> on 2015/02/24 04:37:11 UTC

[jira] [Updated] (CRUNCH-501) Object reuse issue in combineValues(Aggregator)

     [ https://issues.apache.org/jira/browse/CRUNCH-501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Wills updated CRUNCH-501:
------------------------------
    Attachment: CRUNCH-501.patch

This fixes the issue in a hopefully not-too-invasive way. The Avro integration test I had to fix was something that should have been fixed already.

> Object reuse issue in combineValues(Aggregator)
> -----------------------------------------------
>
>                 Key: CRUNCH-501
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-501
>             Project: Crunch
>          Issue Type: Bug
>            Reporter: Brandon Davis
>         Attachments: CRUNCH-501.patch
>
>
> I'm trying to use combineValues on a PGroupedTable. I am using Aggregators.FIRST_N. If I have 20 keys in my PGroupedTable, then I only get 20 distinct values because the AggregatorCombineFn and FirstNAggregator don't detach the values from the incoming iterator.



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