The Data-Hash-Consistent package

[ Tags: bsd3, data, library ] [ Propose Tags ]

Provide a simple consistent hashing mechanism


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Versions 0.1.0, 0.1.1
Dependencies base (>=3 && <6), bytestring, digest, utf8-string, vector, vector-algorithms [details]
License BSD3
Author brad clawsie
Maintainer haskell@fastmail.fm
Category Data
Home page https://github.com/bradclawsie/haskell-Data.Hash.Consistent
Uploaded Tue Nov 20 04:22:01 UTC 2012 by BradClawsie
Distributions NixOS:0.1.1
Downloads 815 total (18 in the last 30 days)
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Readme for Data-Hash-Consistent-0.1.1

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haskell-Data.Hash.Consistent

Data.Hash.Consistent

A consistent hash is a technique to manage the fair distribution of cacheable entities among hosts. Each host identifier has its crc32 hash calculated and stored in a Vector along with its canonical host name. The host identifier may be differentiated from its canonical host name by a multiplying factor, in our case a simple integer appeneded to the hostname to provide it with a number of entries in the consistent hash, all evenly distributed.

This technique is explained in these links:

http://en.wikipedia.org/wiki/Consistent_hashing

http://www.tomkleinpeter.com/2008/03/17/programmers-toolbox-part-3-consistent-hashing/