util-hashing

Util-hashing is a collection of hash functions and hashing distributors (eg. ketama).

This library is released under the Apache Software License, version 2, which should be included with the source in a file named LICENSE.

Building

Use sbt (simple-build-tool) to build:

$ sbt clean update package-dist

The finished jar will be in dist/.

Using

To use hash functions:

KeyHasher.FNV1_32.hashKey("string".getBytes)

Available hash functions are:

FNV1_32
FNV1A_32
FNV1_64
FNV1A_64
KETAMA
CRC32_ITU
HSIEH

To use ketama distributor:

val nodes = List(KetamaNode("host:port", weight, client))
val distributor = new KetamaDistributor(nodes, KeyHasher.FNV1_32)
distributor.nodeForKey("abc") // => client