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docs: add disruption controls design #516

Merged
merged 4 commits into from
Oct 31, 2023
Merged

docs: add disruption controls design #516

merged 4 commits into from
Oct 31, 2023

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njtran
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@njtran njtran commented Sep 15, 2023 •
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Fixes

Description
This is a request for comments on the disruption controls design.

Once this is implemented, it should solve the following:

Please leave your comments!

How was this change tested?

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

@njtran njtran requested a review from a team as a code owner September 15, 2023 21:59
@njtran njtran requested a review from ellistarn September 15, 2023 21:59
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coveralls commented Sep 15, 2023 •
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Pull Request Test Coverage Report for Build 6699985019

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • 2 unchanged lines in 1 file lost coverage.
  • Overall coverage decreased (-0.02%) to 82.473%
Files with Coverage Reduction New Missed Lines %
pkg/test/cachesyncingclient.go 2 80.21%
Totals Coverage Status
Change from base Build 6672224362: -0.02%
Covered Lines: 9270
Relevant Lines: 11240
💛 - Coveralls

jonathan-innis
jonathan-innis reviewed Sep 20, 2023
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charliedmcb
charliedmcb reviewed Sep 20, 2023
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Great to see the progress on disruption controls!

Have just a few questions/thoughts on MaxUnavailable

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jonathan-innis reviewed Sep 21, 2023
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@chlunde
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chlunde commented Sep 22, 2023

Are you planning to be able to extend this to more mechanisms/controls with parameters, like "deprovision nodes if there are more than 20% over-allocation" or "more than 2 nodes of spare capacity"?

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njtran commented Sep 22, 2023

@chlunde

Are you planning to be able to extend this to more mechanisms/controls with parameters, like "deprovision nodes if there are more than 20% over-allocation" or "more than 2 nodes of spare capacity"?

The hope was that defining a disruption block in the NodePool would make future features possibly like these to have a sensible place to live. We should evaluate what each of these features mean and how/if we should implement them, but this is definitely where they would live.

@engedaam engedaam mentioned this pull request Oct 6, 2023
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@njtran njtran mentioned this pull request Oct 18, 2023
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Is this ready to merge?

@njtran njtran mentioned this pull request Oct 31, 2023
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@njtran njtran merged commit 462e58e into kubernetes-sigs:main Oct 31, 2023
@njtran njtran deleted the rfc branch November 1, 2023 20:04
@ssoriche ssoriche mentioned this pull request Nov 2, 2023
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@tzneal tzneal mentioned this pull request Nov 14, 2023
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@blakepettersson blakepettersson blakepettersson approved these changes

@ellistarn ellistarn ellistarn approved these changes

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