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From "Cheolsoo Park (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3648) Make the sample size for RandomSampleLoader configurable
Date Tue, 18 Feb 2014 19:26:19 GMT

     [ https://issues.apache.org/jira/browse/PIG-3648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Cheolsoo Park updated PIG-3648:
-------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Committed to trunk. Thank you Daniel!

> Make the sample size for RandomSampleLoader configurable
> --------------------------------------------------------
>
>                 Key: PIG-3648
>                 URL: https://issues.apache.org/jira/browse/PIG-3648
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Cheolsoo Park
>            Assignee: Cheolsoo Park
>            Priority: Minor
>             Fix For: 0.13.0
>
>         Attachments: PIG-3648-1.patch
>
>
> Pig uses RandomSampleLoader for range partitioning in order-by. But since the sample
size is hardcoded as 100, volatility in the variance of the results  increases when sorting
a large number of rows (e.g. 10M+ per task).
> It would be nice if the sample size could be configurable via Pig properties.



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