scheduler: improve Coscheduling PreFilter status #1861
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Signed-off-by: Joseph <joseph.t.lee@outlook.com>
Codecov ReportAttention:
Additional details and impacted files@@ Coverage Diff @@
## main #1861 +/- ##
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+ Coverage 67.26% 67.28% +0.02%
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Files 407 407
Lines 45644 45644
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+ Hits 30701 30711 +10
+ Misses 12728 12722 -6
+ Partials 2215 2211 -4
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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
make test