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https://issues.apache.org/jira/browse/PIG-4245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rohini Palaniswamy updated PIG-4245:
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Attachment: PIG-4245-1.patch
> 1-1 edge vertices should use same jvm opts
> -------------------------------------------
>
> Key: PIG-4245
> URL: https://issues.apache.org/jira/browse/PIG-4245
> Project: Pig
> Issue Type: Sub-task
> Components: tez
> Reporter: Rohini Palaniswamy
> Assignee: Rohini Palaniswamy
> Fix For: 0.14.0
>
> Attachments: PIG-4245-1.patch
>
>
> We use map jvm opts for root vertices and reduce jvm opts for intermediate
> and leaf vertices. For a simple order by or skewed join the Sampler will be a
> root vertex and Partitioner will be a intermediate vertex. If the map opts
> and reduce opts are different containers will not be reused and there will be
> lot of resource wastage when the reduce opts specify higher memory than map
> which is usually the case. The partitioner does not do much and just does
> identity mapping. So we should be good using map opts there.
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