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Considering all nodes for the scheduler cache to allow lookups

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This commit is contained in:
Abhishek Gupta 2016-06-03 14:35:50 -07:00
parent e79f046990
commit 623e7dfa39
1 changed files with 9 additions and 3 deletions
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12
plugin/pkg/scheduler/factory/factory.go
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@ -449,6 +449,11 @@ func getNodeConditionPredicate() cache.NodeConditionPredicate {
return false return false
} }
} }
// Ignore nodes that are marked unschedulable
if node.Spec.Unschedulable {
glog.V(4).Infof("Ignoring node %v since it is unschedulable", node.Name)
return false
}
return true return true
} }
} }
@ -470,9 +475,10 @@ func (factory *ConfigFactory) createAssignedNonTerminatedPodLW() *cache.ListWatc
// createNodeLW returns a cache.ListWatch that gets all changes to nodes. // createNodeLW returns a cache.ListWatch that gets all changes to nodes.
func (factory *ConfigFactory) createNodeLW() *cache.ListWatch { func (factory *ConfigFactory) createNodeLW() *cache.ListWatch {
// TODO: Filter out nodes that doesn't have NodeReady condition. // all nodes are considered to ensure that the scheduler cache has access to all nodes for lookups
fields := fields.Set{api.NodeUnschedulableField: "false"}.AsSelector() // the NodeCondition is used to filter out the nodes that are not ready or unschedulable
return cache.NewListWatchFromClient(factory.Client, "nodes", api.NamespaceAll, fields) // the filtered list is used as the super set of nodes to consider for scheduling
return cache.NewListWatchFromClient(factory.Client, "nodes", api.NamespaceAll, fields.ParseSelectorOrDie(""))
} }
// createPersistentVolumeLW returns a cache.ListWatch that gets all changes to persistentVolumes. // createPersistentVolumeLW returns a cache.ListWatch that gets all changes to persistentVolumes.