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Date: Thu, 12 Jul 2012 07:10:33 +0000 (UTC)
From: "Gabriel Reid (JIRA)" <jira@apache.org>
To: crunch-dev@incubator.apache.org
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Subject: [jira] [Work started] (CRUNCH-13) Partitioner crash in pipelines
 containing reflection-based Avro data
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     [ https://issues.apache.org/jira/browse/CRUNCH-13?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on CRUNCH-13 started by Gabriel Reid.

> Partitioner crash in pipelines containing reflection-based Avro data
> --------------------------------------------------------------------
>
>                 Key: CRUNCH-13
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-13
>             Project: Crunch
>          Issue Type: Bug
>    Affects Versions: 0.3.0
>            Reporter: Gabriel Reid
>            Assignee: Gabriel Reid
>              Labels: avro, reflection
>             Fix For: 0.3.0
>
>         Attachments: CRUNCH-13.patch
>
>
> When using reflection-based Avro schemas, the default (hash-based) partitioner crashes due to GenericData.Records not being able to calculate a hash code for reflection-based data. This means that any pipeline using Avro reflection data cannot do a group by key on a PCollection (as this involves a reducer which involves the partitioner).

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