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38 lines
650 B
38 lines
650 B
package broker
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import (
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"github.com/buraksezer/consistent"
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"github.com/cespare/xxhash"
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)
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type Member string
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func (m Member) String() string {
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return string(m)
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}
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type hasher struct{}
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func (h hasher) Sum64(data []byte) uint64 {
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return xxhash.Sum64(data)
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}
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func PickMember(members []string, key []byte) string {
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cfg := consistent.Config{
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PartitionCount: 9791,
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ReplicationFactor: 2,
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Load: 1.25,
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Hasher: hasher{},
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}
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cmembers := []consistent.Member{}
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for _, m := range members {
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cmembers = append(cmembers, Member(m))
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}
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c := consistent.New(cmembers, cfg)
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m := c.LocateKey(key)
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return m.String()
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}
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