namespace

Documentation

Index

• Constants
• Variables
• func RegisterClassifier(name string, createFn CreateClassifierFunc)
• type Classifier
  • func CreateClassifier(name string, kv *core.KV, idAlloc core.IDAllocator) (Classifier, error)
• type CreateClassifierFunc
• type ScheduleOptions

Constants

const DefaultNamespace = "global"

DefaultNamespace is the namespace all the store and region belong to by default.

Variables

var DefaultClassifier = defaultClassifier{}

DefaultClassifier is a classifier that classifies all regions and stores to DefaultNamespace.

Functions

func RegisterClassifier

func RegisterClassifier(name string, createFn CreateClassifierFunc)

RegisterClassifier binds a classifier creator. It should be called in init() func of a package.

Types

type Classifier

type Classifier interface {
	GetAllNamespaces() []string
	GetStoreNamespace(*core.StoreInfo) string
	GetRegionNamespace(*core.RegionInfo) string
	IsNamespaceExist(name string) bool
	AllowMerge(*core.RegionInfo, *core.RegionInfo) bool
	// Reload underlying namespaces
	ReloadNamespaces() error
	// These function below are only for tests
	IsMetaExist() bool
	IsTableIDExist(int64) bool
	IsStoreIDExist(uint64) bool
}

Classifier is used to determine the namespace which the store or region belongs.

func CreateClassifier

func CreateClassifier(name string, kv *core.KV, idAlloc core.IDAllocator) (Classifier, error)

CreateClassifier creates a namespace classifier with registered creator func.

type CreateClassifierFunc

type CreateClassifierFunc func(*core.KV, core.IDAllocator) (Classifier, error)

CreateClassifierFunc is for creating namespace classifier.

type ScheduleOptions

type ScheduleOptions interface {
	GetLeaderScheduleLimit(name string) uint64
	GetRegionScheduleLimit(name string) uint64
	GetReplicaScheduleLimit(name string) uint64
	GetMergeScheduleLimit(name string) uint64
	GetMaxReplicas(name string) int
}

ScheduleOptions for namespace cluster.