This link has been bookmarked by 58 people . It was first bookmarked on 20 Mar 2008, by Arrix Z.
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That is how I wrote the caching layer for Audiogalaxy searches, and that turned out OK. The caching part, at least. But if had known about it at the time, I would have started with a simple version of consistent hashing. It isn’t that much more complicated to implement and it gives you a lot of flexibility down the road.
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hashing resources into points on the circle. They could be URLs, GUIDs, integer IDs, or any arbitrary sequence of bytes.
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You have identified someone not worth arguing with
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You start where resource A is and head clockwise on the ring until you hit a server. If that server is down, you go to the next one, and so on and so forth.
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