[tor-bugs] #27356 [Metrics/ExoneraTor]: Reduce database size and variance of query response times

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#27356: Reduce database size and variance of query response times
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 Reporter:  karsten             |          Owner:  metrics-team
     Type:  enhancement         |         Status:  needs_review
 Priority:  High                |      Milestone:
Component:  Metrics/ExoneraTor  |        Version:
 Severity:  Normal              |     Resolution:
 Keywords:                      |  Actual Points:
Parent ID:                      |         Points:
 Reviewer:                      |        Sponsor:
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Comment (by karsten):

 (All commits are squash commits, so for a fresh review they are best
 reviewed all together.)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27356#comment:6>
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