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@prat0088 prat0088 commented Mar 3, 2021

A common way to implement replicas in a Hash Ring is to find a node on the ring, then return that node plus subsequent nodes. There was no way to do that with HashRing's interface.

I left GetNodes() as unimplemented on BstHashRing since that class only appears in the UnitTests project and it has no test coverage. It seemed like a prototype.

I'm going to be trying HashRing out in my own code this week and might submit further tweaks or changes in this PR or others.

@prat0088 prat0088 marked this pull request as ready for review March 3, 2021 20:36
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@jlao jlao left a comment

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Thanks for the contributions. Sorry I didn't look at this sooner. I started a new job earlier this year and it got lost in the mix.

Comment on lines +91 to +92
throw new InvalidOperationException(
$"GetNodes() parameter n must be greater or equal to 1, but it was {n}");
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I think an ArgumentException would be better here.

Comment on lines +95 to +96
var toReturn = new List<TNode>();
var seen = new List<TNode>(); // Faster for small values of n, which is the expected use case.
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Is seen needed? Seems like it is the same as toReturn.

}
else

var toReturn = new List<TNode>();
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Seems like we can initialize this list with capacity n to avoid resizing.

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2 participants