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Posted to dev@pig.apache.org by "Rohini Palaniswamy (JIRA)" <ji...@apache.org> on 2016/04/12 21:55:25 UTC

[jira] [Updated] (PIG-4868) bytes.per.reducer configured by user not honored in Tez

     [ https://issues.apache.org/jira/browse/PIG-4868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohini Palaniswamy updated PIG-4868:
------------------------------------
    Status: Patch Available  (was: Open)

> bytes.per.reducer configured by user not honored in Tez
> -------------------------------------------------------
>
>                 Key: PIG-4868
>                 URL: https://issues.apache.org/jira/browse/PIG-4868
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Rohini Palaniswamy
>            Assignee: Rohini Palaniswamy
>         Attachments: PIG-4868-1.patch
>
>
>   We don't use that in parallelism estimation and only use that in ShuffleVertexManager. Usually it is fine, but in cases when user has set a really low bytes.per.reducer it does not work as our estimation is low. ShuffleVertexManager only decreases parallelism and not increases parallelism.



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