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https://issues.apache.org/jira/browse/PIG-4868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rohini Palaniswamy updated PIG-4868:
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Hadoop Flags: Reviewed
Summary: Low values for bytes.per.reducer configured by user not
honored in Tez for inputs (was: bytes.per.reducer configured by user not
honored in Tez)
Yes.
> Low values for bytes.per.reducer configured by user not honored in Tez for
> inputs
> ---------------------------------------------------------------------------------
>
> 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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