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https://issues.apache.org/jira/browse/AURORA-1829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15997258#comment-15997258
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Mehrdad Nurolahzade commented on AURORA-1829:
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Second attempt: https://reviews.apache.org/r/58636/
> Expose stats on preemptor BiCache expirations
> ---------------------------------------------
>
> Key: AURORA-1829
> URL: https://issues.apache.org/jira/browse/AURORA-1829
> Project: Aurora
> Issue Type: Task
> Components: Scheduler
> Reporter: Mehrdad Nurolahzade
> Assignee: Mehrdad Nurolahzade
> Priority: Minor
> Labels: newbie
>
> We have no visibility into whether reservations made by preemption are
> actually consumed or simply expire.
> We are currently collecting stats for the size of preemption/reservation
> {{BiCache}}. We could additionally collect (a) cache expiration stats and (b)
> reservation entry removals in {{TaskSchedulerImpl.taskChanged()}} to monitor
> overall preemption effectiveness.
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