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From "Kanak Biscuitwala (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HELIX-277) FULL_AUTO rebalancer should not prefer nodes that are just coming up
Date Tue, 12 Nov 2013 22:23:18 GMT

     [ https://issues.apache.org/jira/browse/HELIX-277?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kanak Biscuitwala updated HELIX-277:
------------------------------------

    Fix Version/s: 0.6.2-incubating

> FULL_AUTO rebalancer should not prefer nodes that are just coming up
> --------------------------------------------------------------------
>
>                 Key: HELIX-277
>                 URL: https://issues.apache.org/jira/browse/HELIX-277
>             Project: Apache Helix
>          Issue Type: Sub-task
>            Reporter: Kanak Biscuitwala
>            Assignee: Kanak Biscuitwala
>             Fix For: 0.6.2-incubating
>
>
> Rebalancing in FULL_AUTO mode will relentlessly (though mostly greedily) seek a balance
in both partitions and states across nodes with minimal movement. However, in this pursuit,
we may end up requiring multiple transitions to get a node in the right state for a given
partition.
> We can fix this by refusing to prefer nodes as they come up, and then revert to the existing
strategy once their current state contains a replica.



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