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From "Kanak Biscuitwala (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HELIX-148) Current preferred placement for auto rebalace is suboptimal for n > p
Date Mon, 29 Jul 2013 23:45:48 GMT

     [ https://issues.apache.org/jira/browse/HELIX-148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kanak Biscuitwala resolved HELIX-148.
-------------------------------------

    Resolution: Fixed

Patch submitted by dafu
                
> Current preferred placement for auto rebalace is suboptimal for n > p
> ---------------------------------------------------------------------
>
>                 Key: HELIX-148
>                 URL: https://issues.apache.org/jira/browse/HELIX-148
>             Project: Apache Helix
>          Issue Type: Bug
>          Components: helix-core
>            Reporter: Kanak Biscuitwala
>            Assignee: Kanak Biscuitwala
>            Priority: Minor
>         Attachments: 0001-HELIX-148-New-preferred-placment-strategy-if-N-P.patch, preferredchk.py
>
>
> The new auto-rebalance algorithm computes suboptimal preferred placement if there are
more nodes than partitions because it fills up nodes before moving onto more nodes.

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