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Re-add ServiceSpreadingPriority priority algorithm

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This commit is contained in:
Jordan Liggitt
2015-08-11 15:03:35 -04:00
parent 5a2d85f929
commit cf7a2cdfff
3 changed files with 128 additions and 1 deletions
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16
plugin/pkg/scheduler/algorithmprovider/defaults/defaults.go
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@@ -32,6 +32,20 @@ func init() {
// Register the priority function so that its available
// but do not include it as part of the default priorities
factory.RegisterPriorityFunction("EqualPriority", scheduler.EqualPriority, 1)
// ServiceSpreadingPriority is a priority config factory that spreads pods by minimizing
// the number of pods (belonging to the same service) on the same node.
// Register the factory so that it's available, but do not include it as part of the default priorities
// Largely replaced by "SelectorSpreadPriority", but registered for backward compatibility with 1.0
factory.RegisterPriorityConfigFactory(
"ServiceSpreadingPriority",
factory.PriorityConfigFactory{
Function: func(args factory.PluginFactoryArgs) algorithm.PriorityFunction {
return priorities.NewSelectorSpreadPriority(args.ServiceLister, algorithm.EmptyControllerLister{})
},
Weight: 1,
},
)
}
func defaultPredicates() util.StringSet {
@@ -65,7 +79,7 @@ func defaultPriorities() util.StringSet {
factory.RegisterPriorityFunction("LeastRequestedPriority", priorities.LeastRequestedPriority, 1),
// Prioritizes nodes to help achieve balanced resource usage
factory.RegisterPriorityFunction("BalancedResourceAllocation", priorities.BalancedResourceAllocation, 1),
// spreads pods by minimizing the number of pods (belonging to the same service) on the same minion.
// spreads pods by minimizing the number of pods (belonging to the same service or replication controller) on the same node.
factory.RegisterPriorityConfigFactory(
"SelectorSpreadPriority",
factory.PriorityConfigFactory{