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Scheduler: introduce CheckNodeMemoryPressurePredicate, don't schedule pods for nodes that reports memory pressury.

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Introduce unit-test for CheckNodeMemoryPressurePredicate

Following work done in #14943
This commit is contained in:
Jan Chaloupka
2016-05-12 14:01:33 +02:00
parent f538d6019d
commit b95b30bbd7
5 changed files with 142 additions and 0 deletions
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1
plugin/pkg/scheduler/algorithm/predicates/error.go
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@@ -38,6 +38,7 @@ var (
ErrNodeLabelPresenceViolated = newPredicateFailureError("CheckNodeLabelPresence")
ErrServiceAffinityViolated = newPredicateFailureError("CheckServiceAffinity")
ErrMaxVolumeCountExceeded = newPredicateFailureError("MaxVolumeCount")
ErrNodeUnderMemoryPressure = newPredicateFailureError("NodeUnderMemoryPressure")
// ErrFakePredicate is used for test only. The fake predicates returning false also returns error
// as ErrFakePredicate.
ErrFakePredicate = newPredicateFailureError("FakePredicateError")