consistenthash

package

v1.4.5 Latest Latest Go to latest Published: Jan 11, 2024 License: BSD-3-Clause Imports: 8 Imported by: 0

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type ConsistentHash struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

ConsistentHash consistent hash map

func New(enableWeight bool, hashType HashAlgorithmType) *ConsistentHash

New create a ConsistentHash which has replicates of virtual endpoint.Endpoint.

func (c *ConsistentHash) Add(ep endpoint.Endpoint) error

Add the ep to the hash ring

func (c *ConsistentHash) Find(key string) (endpoint.Endpoint, bool)

Find finds a endpoint.Endpoint to put the string key

func (c *ConsistentHash) FindInt32(key uint32) (endpoint.Endpoint, bool)

FindInt32 finds a endpoint.Endpoint to put the uint32 key

func (c *ConsistentHash) Refresh(eps []endpoint.Endpoint)

func (c *ConsistentHash) Remove(ep endpoint.Endpoint) error

Remove the ep and all the virtual eps from the key

func (c *ConsistentHash) Select(msg selector.Message) (ep endpoint.Endpoint, err error)

type DefaultHashAlg struct {
}

func (k DefaultHashAlg) GetHashType() HashAlgorithmType

func (k DefaultHashAlg) Hash(key string) uint32

type HashAlgorithmType int

const (
	KetamaHash  HashAlgorithmType = 0
	DefaultHash HashAlgorithmType = 1
)

type KetamaHashAlg struct {
}

func (k KetamaHashAlg) GetHashType() HashAlgorithmType

func (k KetamaHashAlg) Hash(key string) uint32