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https://issues.apache.org/jira/browse/IMPALA-13437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell resolved IMPALA-13437.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> Improve heuristics for placing the tuple cache nodes
> ----------------------------------------------------
>
> Key: IMPALA-13437
> URL: https://issues.apache.org/jira/browse/IMPALA-13437
> Project: IMPALA
> Issue Type: Improvement
> Components: Frontend
> Affects Versions: Impala 4.5.0
> Reporter: Joe McDonnell
> Assignee: Joe McDonnell
> Priority: Major
> Fix For: Impala 5.0.0
>
>
> Improve placement of tuple cache nodes by considering:
> # Selectivity
> # Result Size
> # Operator cost
> # Data change frequency (maybe followup)
> # Etc
> This should avoid caching large results that don't have a major performance
> improvement.
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