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https://issues.apache.org/jira/browse/IMPALA-9027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-9027 started by Tim Armstrong.
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> Update planner decisions to factor in mt_dop
> --------------------------------------------
>
> Key: IMPALA-9027
> URL: https://issues.apache.org/jira/browse/IMPALA-9027
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
>
> We need to make sure all decisions in the planner that currently use number
> of nodes use number of instances if appropriate.
> E.g.
> * HashJoinNode.computeNodeResourceProfile() has a TODO.
> * I think the broadcast/shuffle decision doesn't take into account mt_dop,
> which is wrong if we're broadcasting to multiple instances per fragment.
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