[jira] [Created] (HELIX-152) Extend auto rebalance to accept replicas with non-unit weights

["Kanak Biscuitwala (JIRA)" <ji...@apache.org>]

Kanak Biscuitwala created HELIX-152:
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             Summary: Extend auto rebalance to accept replicas with non-unit weights
                 Key: HELIX-152
                 URL: https://issues.apache.org/jira/browse/HELIX-152
             Project: Apache Helix
          Issue Type: Improvement
          Components: helix-core
            Reporter: Kanak Biscuitwala
            Priority: Minor


The current auto rebalancing strategy assumes that each replica adds a one-dimensional value of 1. It may make sense to make these costs weighted and perhaps multi-dimensional.

This is similar to problems related to constraint satisfaction or knapsack solving, and some existing implementations may be worth looking at. One example: https://code.google.com/p/or-tools/

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