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Make predicate errors more human readable

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This commit is contained in:
tanshanshan
2018-01-30 09:04:58 +08:00
parent 0726f8c726
commit c389e3cec7
4 changed files with 33 additions and 32 deletions
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53
pkg/scheduler/algorithm/predicates/error.go
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@@ -30,31 +30,31 @@ var (
// be made to pass by removing pods, or you change an existing predicate so that
// it can never be made to pass by removing pods, you need to add the predicate
// failure error in nodesWherePreemptionMightHelp() in scheduler/core/generic_scheduler.go
ErrDiskConflict = newPredicateFailureError("NoDiskConflict")
ErrVolumeZoneConflict = newPredicateFailureError("NoVolumeZoneConflict")
ErrNodeSelectorNotMatch = newPredicateFailureError("MatchNodeSelector")
ErrPodAffinityNotMatch = newPredicateFailureError("MatchInterPodAffinity")
ErrPodAffinityRulesNotMatch = newPredicateFailureError("PodAffinityRulesNotMatch")
ErrPodAntiAffinityRulesNotMatch = newPredicateFailureError("PodAntiAffinityRulesNotMatch")
ErrExistingPodsAntiAffinityRulesNotMatch = newPredicateFailureError("ExistingPodsAntiAffinityRulesNotMatch")
ErrTaintsTolerationsNotMatch = newPredicateFailureError("PodToleratesNodeTaints")
ErrPodNotMatchHostName = newPredicateFailureError("HostName")
ErrPodNotFitsHostPorts = newPredicateFailureError("PodFitsHostPorts")
ErrNodeLabelPresenceViolated = newPredicateFailureError("CheckNodeLabelPresence")
ErrServiceAffinityViolated = newPredicateFailureError("CheckServiceAffinity")
ErrMaxVolumeCountExceeded = newPredicateFailureError("MaxVolumeCount")
ErrNodeUnderMemoryPressure = newPredicateFailureError("NodeUnderMemoryPressure")
ErrNodeUnderDiskPressure = newPredicateFailureError("NodeUnderDiskPressure")
ErrNodeOutOfDisk = newPredicateFailureError("NodeOutOfDisk")
ErrNodeNotReady = newPredicateFailureError("NodeNotReady")
ErrNodeNetworkUnavailable = newPredicateFailureError("NodeNetworkUnavailable")
ErrNodeUnschedulable = newPredicateFailureError("NodeUnschedulable")
ErrNodeUnknownCondition = newPredicateFailureError("NodeUnknownCondition")
ErrVolumeNodeConflict = newPredicateFailureError("VolumeNodeAffinityConflict")
ErrVolumeBindConflict = newPredicateFailureError("VolumeBindingNoMatch")
ErrDiskConflict = newPredicateFailureError("NoDiskConflict", "node(s) had no available disk")
ErrVolumeZoneConflict = newPredicateFailureError("NoVolumeZoneConflict", "node(s) had no available volume zone")
ErrNodeSelectorNotMatch = newPredicateFailureError("MatchNodeSelector", "node(s) didn't match node selector")
ErrPodAffinityNotMatch = newPredicateFailureError("MatchInterPodAffinity", "node(s) didn't match pod affinity/anti-affinity")
ErrPodAffinityRulesNotMatch = newPredicateFailureError("PodAffinityRulesNotMatch", "node(s) didn't match pod affinity rules")
ErrPodAntiAffinityRulesNotMatch = newPredicateFailureError("PodAntiAffinityRulesNotMatch", "node(s) didn't match pod anti-affinity rules")
ErrExistingPodsAntiAffinityRulesNotMatch = newPredicateFailureError("ExistingPodsAntiAffinityRulesNotMatch", "node(s) didn't satisfy existing pods anti-affinity rules")
ErrTaintsTolerationsNotMatch = newPredicateFailureError("PodToleratesNodeTaints", "node(s) had taints that the pod didn't tolerate")
ErrPodNotMatchHostName = newPredicateFailureError("HostName", "node(s) didn't match the requested hostname")
ErrPodNotFitsHostPorts = newPredicateFailureError("PodFitsHostPorts", "node(s) didn't have free ports for the requested pod ports")
ErrNodeLabelPresenceViolated = newPredicateFailureError("CheckNodeLabelPresence", "node(s) didn't have the requested labels")
ErrServiceAffinityViolated = newPredicateFailureError("CheckServiceAffinity", "node(s) didn't match service affinity")
ErrMaxVolumeCountExceeded = newPredicateFailureError("MaxVolumeCount", "node(s) exceed max volume count")
ErrNodeUnderMemoryPressure = newPredicateFailureError("NodeUnderMemoryPressure", "node(s) had memory pressure")
ErrNodeUnderDiskPressure = newPredicateFailureError("NodeUnderDiskPressure", "node(s) had disk pressure")
ErrNodeOutOfDisk = newPredicateFailureError("NodeOutOfDisk", "node(s) were out of disk space")
ErrNodeNotReady = newPredicateFailureError("NodeNotReady", "node(s) were not ready")
ErrNodeNetworkUnavailable = newPredicateFailureError("NodeNetworkUnavailable", "node(s) had unavailable network")
ErrNodeUnschedulable = newPredicateFailureError("NodeUnschedulable", "node(s) were unschedulable")
ErrNodeUnknownCondition = newPredicateFailureError("NodeUnknownCondition", "node(s) had unknown conditions")
ErrVolumeNodeConflict = newPredicateFailureError("VolumeNodeAffinityConflict", "node(s) had volume node affinity conflict")
ErrVolumeBindConflict = newPredicateFailureError("VolumeBindingNoMatch", "node(s) didn't find available persistent volumes to bind")
// ErrFakePredicate is used for test only. The fake predicates returning false also returns error
// as ErrFakePredicate.
ErrFakePredicate = newPredicateFailureError("FakePredicateError")
ErrFakePredicate = newPredicateFailureError("FakePredicateError", "Nodes failed the fake predicate")
)
// InsufficientResourceError is an error type that indicates what kind of resource limit is
@@ -91,10 +91,11 @@ func (e *InsufficientResourceError) GetInsufficientAmount() int64 {
type PredicateFailureError struct {
PredicateName string
PredicateDesc string
}
func newPredicateFailureError(predicateName string) *PredicateFailureError {
return &PredicateFailureError{PredicateName: predicateName}
func newPredicateFailureError(predicateName, predicateDesc string) *PredicateFailureError {
return &PredicateFailureError{PredicateName: predicateName, PredicateDesc: predicateDesc}
}
func (e *PredicateFailureError) Error() string {
@@ -102,7 +103,7 @@ func (e *PredicateFailureError) Error() string {
}
func (e *PredicateFailureError) GetReason() string {
return e.PredicateName
return e.PredicateDesc
}
type FailureReason struct {