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https://issues.apache.org/jira/browse/IMPALA-8542?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon resolved IMPALA-8542.
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Resolution: Fixed
Fix Version/s: Impala 3.3.0
> Access trace collection for data cache
> --------------------------------------
>
> Key: IMPALA-8542
> URL: https://issues.apache.org/jira/browse/IMPALA-8542
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Major
> Fix For: Impala 3.3.0
>
>
> Now that we have a remote-read data cache, it would be useful to log an
> access trace. The trace can be then fed back into various cache policy
> simulators to compare the relative performance, and do "what if" analysis
> (how would hit rate react with larger/smaller capacities)
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