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From "Roger Schildmeijer (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-1086) Token range calculator
Date Thu, 13 May 2010 18:46:42 GMT


Roger Schildmeijer commented on CASSANDRA-1086:

I'm really curios about the problems you guys had with manually token assigments (auto bootstrap

> Token range calculator
> ----------------------
>                 Key: CASSANDRA-1086
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Contrib
>    Affects Versions: 0.6.1
>            Reporter: Suhail Doshi
>            Priority: Trivial
> We found loadbalance and autobootstrapping to be sub-par in production; also very risky
too if it guesses anything wrong.
> We created a simple Python script that I am sure can be greatly improved to be more automated
but thought we'd throw it up here anyway:
> In a nutshell: give it your current token ranges, the load for that range, and it'll
suggest you the best token to help load balance your cluster when you decide to add a new
node. We've used it countless times in production ourselves. Our way of contributing some
small back to the community.

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