Rolling Drain Mode Host Preference

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Erik Gallagher

Hello! I have been playing with rolling drain mode, and confirmed that rolling drain "prefers" to drain hosts with the fewest user sessions.

 

My request is to add an option to choose a "preference" for draining hosts with the following options:

  • Drain hosts with lowest user count first
  • Drain hosts with highest uptime first
  • Drain hosts with oldest provisioning time first

Sometimes if user sessions line up just right, a few hosts will not end up getting a reboot or new golden image. If I use :"medium" auto-scale aggressiveness, it's possible that two or three users in different timezones will keep a VM perpetually online unless it's deactivated.

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Dave Stephenson

It looks like we have similar logic for the "burst hosts".
I'm guessing we could add similar logic to each rolling drain mode window to the preferred drain mode method you're wanting to utilize. 
Is that what you're wanting or would it just be the same rolling drain mode logic for all of your RDM windows?

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