[jira] [Created] (IMPALA-8542) Access trace collection for data cache

[Todd Lipcon (JIRA)]

Todd Lipcon created IMPALA-8542:
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             Summary: 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


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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