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https://issues.apache.org/jira/browse/PIG-1389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Ding updated PIG-1389:
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Attachment: PIG-1389.patch
sync with the latest trunk.
> Implement Pig counter to track number of rows for each input files
> -------------------------------------------------------------------
>
> Key: PIG-1389
> URL: https://issues.apache.org/jira/browse/PIG-1389
> Project: Pig
> Issue Type: Improvement
> Affects Versions: 0.7.0
> Reporter: Richard Ding
> Assignee: Richard Ding
> Fix For: 0.8.0
>
> Attachments: PIG-1389.patch, PIG-1389.patch
>
>
> A MR job generated by Pig not only can have multiple outputs (in the case of
> multiquery) but also can have multiple inputs (in the case of join or
> cogroup). In both cases, the existing Hadoop counters (e.g.
> MAP_INPUT_RECORDS, REDUCE_OUTPUT_RECORDS) can not be used to count the number
> of records in the given input or output. PIG-1299 addressed the case of
> multiple outputs. We need to add new counters for jobs with multiple inputs.
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