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