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Stephan Erb commented on AURORA-1472:
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We discussed this feature a little bit at MesosCon Europe. We realized that it
should be sufficient to add the jitter on the initial delay of the backoff. The
jitter will automatically prevail for larger backoffs.
Tony, if you are interested, please feel free to work on this one :-).
> TaskThrottle should have a configurable jitter
> ----------------------------------------------
>
> Key: AURORA-1472
> URL: https://issues.apache.org/jira/browse/AURORA-1472
> Project: Aurora
> Issue Type: Story
> Components: Scheduler
> Reporter: Stephan Erb
> Assignee: Tony Dong
> Labels: newbie
>
> As an Aurora cluster operator, I need the ability to configure a random
> jitter which is added to the [throttle time of flapping
> jobs|https://github.com/apache/aurora/blob/06ddaadbcba4c66b8019815de6ca27d50a9df77d/src/main/java/org/apache/aurora/scheduler/scheduling/TaskThrottler.java#L73].
>
> Background information: Due to some cascading failures, we ended in a state
> where many instances where throttled. Unfortunately, all these instances were
> restarted at the exact same time. This overloaded a backend used for package
> retrieval. A random jitter would have helped us to spread out the load on the
> backend service.
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