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Status Not under consideration
Workspace Spectrum Symphony
Components Version 7.3.2
Created by Guest
Created on Oct 30, 2023

Spot Instance interruption notice support in HostFactory

AWS will send an interruption notice 2 mins before the Spot Instance is reclaimed. HostFactory currently does not pass the notice to Symphony cluster and application to handle the interruption. We will need this notice to optimize the workload for Spot instance to minimize the impact: 1) Workload should not be sent to a Spot Instance if it is already in the process being reclaimed. 2) The SI should be notified about the interruption and the grace period so it can properly handle the rest of the work.

Needed By Quarter
  • Admin
    Dennis Xiao
    Reply
    |
    Nov 21, 2023

    Larry,

    This can be achieved via calling egosh resource reclaim -b outside HF. However, if the grace-period is configured > 2 mins, the workload will be still affected. And the tuning is required for how frequently to call AWS to get the "interruption notice", might not get full 2 mins in advance for some cases.

    Thanks, Dennis