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https://issues.apache.org/jira/browse/AURORA-1829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mehrdad Nurolahzade updated AURORA-1829:
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Description:
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 preemptor {{BiCache}}
({{reservation_cache_size}}). We could additionally collect (a) cache
expiration stats and (b) reservation entry removals in
{{TaskSchedulerImpl.taskChanged()}} to monitor overall preemption
effectiveness.
was:
We are currently collecting stats for the size of preemptor {{BiCache}}
({{reservation_cache_size}}). We could additionally collect cache expiration
stats to monitor overall preemption effectiveness.
Currently, we have no visibility into whether reservations made by preemption
are actually consumed or simply expire.
> 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
> 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 preemptor {{BiCache}}
> ({{reservation_cache_size}}). 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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