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scheduler: improve Coscheduling PreFilter status #1861

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eahydra
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@eahydra eahydra commented Jan 20, 2024

Ⅰ. Describe what this PR does

If some Pods with the same PodGroup CRD object are created and scheduling fails, the coscheduling PreFilter returns framework.Error to stop preemption, but this is not the best option. It should return framework.UnschedulableAndUnresolvable.

framework.Error is special in the scheduler. It represents an internal service exception. We can determine whether the scheduler is healthy by identifying whether there are Errors, but a plugin that frequently returns Errors will prevent us from identifying exceptions.

Ⅱ. Does this pull request fix one issue?

fix #1860

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

  • I have written necessary docs and comments
  • I have added necessary unit tests and integration tests
  • All checks passed in make test

Signed-off-by: Joseph <joseph.t.lee@outlook.com>
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codecov bot commented Jan 20, 2024

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (3d964cf) 67.26% compared to head (af6e70c) 67.28%.

Files Patch % Lines
pkg/scheduler/plugins/coscheduling/coscheduling.go 0.00% 1 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #1861      +/-   ##
==========================================
+ Coverage   67.26%   67.28%   +0.02%     
==========================================
  Files         407      407              
  Lines       45644    45644              
==========================================
+ Hits        30701    30711      +10     
+ Misses      12728    12722       -6     
+ Partials     2215     2211       -4     
Flag Coverage Δ
unittests 67.28% <0.00%> (+0.02%) ⬆️

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@buptcozy buptcozy left a comment

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/lgtm

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: buptcozy

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@koordinator-bot koordinator-bot bot merged commit da6a05c into koordinator-sh:main Jan 22, 2024
21 checks passed
saintube pushed a commit to saintube/koordinator that referenced this pull request Feb 26, 2024
Signed-off-by: Joseph <joseph.t.lee@outlook.com>
saintube pushed a commit that referenced this pull request Feb 26, 2024
Signed-off-by: Joseph <joseph.t.lee@outlook.com>
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Successfully merging this pull request may close these issues.

[proposal] The Coscheduling PreFilter method should not return Error if failed
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