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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AVRO-513) java mapreduce api should pass iterator of matching objects to reduce
Date Mon, 14 Jun 2010 17:43:14 GMT

     [ https://issues.apache.org/jira/browse/AVRO-513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Doug Cutting updated AVRO-513:
------------------------------

    Attachment: AVRO-513.patch

Here's an implementation of this that passes tests.

> java mapreduce api should pass iterator of matching objects to reduce
> ---------------------------------------------------------------------
>
>                 Key: AVRO-513
>                 URL: https://issues.apache.org/jira/browse/AVRO-513
>             Project: Avro
>          Issue Type: Improvement
>          Components: java
>            Reporter: Doug Cutting
>            Assignee: Doug Cutting
>             Fix For: 1.4.0
>
>         Attachments: AVRO-513.patch
>
>
> The Java mapreduce API added in AVRO-493 requires reducers implementations to explicitly
detect sequences of matching data.
> Rather the reduce method might better look something like:
>    void reduce(Iterator<IN>, Collector<OUT>);
> Where all equal values are passed in a single call.

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