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https://issues.apache.org/jira/browse/IMPALA-12908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell resolved IMPALA-12908.
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Fix Version/s: Impala 4.5.0
Resolution: Fixed
> Add a correctness verification mode for tuple caching
> -----------------------------------------------------
>
> Key: IMPALA-12908
> URL: https://issues.apache.org/jira/browse/IMPALA-12908
> Project: IMPALA
> Issue Type: Task
> Components: Backend
> Affects Versions: Impala 4.4.0
> Reporter: Joe McDonnell
> Assignee: Yida Wu
> Priority: Major
> Fix For: Impala 4.5.0
>
>
> To get more coverage of tuple caching correctness, it would be useful to have
> automated correctness checking for tuple caching. In this mode, the tuple
> cache node would fetch results from its child, persist the new results to
> disk, then compare the new results to the cache contents at the end. The goal
> is to be able to run a variety of queries, including various end-to-end tests
> and verify that there is no variability in the results stored to the cache.
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