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From "Kanak Biscuitwala (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HELIX-214) User-defined rebalancer should never use SEMI_AUTO code paths
Date Mon, 26 Aug 2013 16:30:52 GMT

    [ https://issues.apache.org/jira/browse/HELIX-214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750209#comment-13750209
] 

Kanak Biscuitwala edited comment on HELIX-214 at 8/26/13 4:30 PM:
------------------------------------------------------------------

Attached the patch. Previously, even the user-defined rebalancer would use the old ideal state
calculator initially and then get invoked for the rebalance stage. This is no longer the case,
as the partitions are initialized, but a mapping is not computed until the user-defined rebalancer
is first run.

Code review: https://reviews.apache.org/r/13785/
                
      was (Author: kanak):
    Attached the patch. Previously, even the user-defined rebalancer would use the old ideal
state calculator initially and then get invoked for the rebalance stage. This is no longer
the case, as the partitions are initialized, but a mapping is not computed until the user-defined
rebalancer is first run.
                  
> User-defined rebalancer should never use SEMI_AUTO code paths
> -------------------------------------------------------------
>
>                 Key: HELIX-214
>                 URL: https://issues.apache.org/jira/browse/HELIX-214
>             Project: Apache Helix
>          Issue Type: Bug
>            Reporter: Kanak Biscuitwala
>            Assignee: Kanak Biscuitwala
>         Attachments: 0001-HELIX-214-User-defined-rebalancer-should-never-use-S.patch
>
>
> The user-defined rebalancer should always return the full mapping, and should be able
to do this from the start, and not after an initial balance

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