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https://issues.apache.org/jira/browse/IMPALA-13945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on IMPALA-13945 started by Joe McDonnell.
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> Change the tuple cache key trace to display an individual node's contribution
> -----------------------------------------------------------------------------
>
> Key: IMPALA-13945
> URL: https://issues.apache.org/jira/browse/IMPALA-13945
> Project: IMPALA
> Issue Type: Task
> Components: Frontend
> Affects Versions: Impala 5.0.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Major
>
> As tuple caching is supported higher in the plan tree, the cache key trace
> can become enormous, as it includes all of its childrens' information plus
> its own contribution. An individual trace can take up over a hundred lines in
> the profile. It can be hard to determine which contribution comes from which
> child.
> We should break up the hash trace and display each node's individual
> contribution to the hash trace. This should be smaller in the profile and
> more clearer display what is new at each level.
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