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https://issues.apache.org/jira/browse/AURORA-868?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joshua Cohen reassigned AURORA-868:
-----------------------------------
Assignee: Joshua Cohen
> Decouple initial scheduling delay from first scheduling penalty
> ---------------------------------------------------------------
>
> Key: AURORA-868
> URL: https://issues.apache.org/jira/browse/AURORA-868
> Project: Aurora
> Issue Type: Task
> Components: Scheduler
> Reporter: Bill Farner
> Assignee: Joshua Cohen
>
> When the scheduler inserts a task into the scheduling queue, it uses a
> {{BackoffStrategy}} to calculate the initial penalty. The initial value is
> tied to {{-initial_schedule_delay}}.
> Based on data collected from https://reviews.apache.org/r/25872/, it's clear
> that the backoff is not aggressive enough - it is rare that we find a match
> for tasks within O(seconds) if we did not immediately find a match.
> I suggest we continue to try very quickly to schedule newly-pending tasks,
> but apply harsher penalties when a match cannot be found. This would
> translate into 0 initial penalty when first inserted, and perhaps a new
> {{-initial_schedule_delay}} default of 1 second, and a
> {{-max_schedule_delay}} of 1 minute.
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