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From "Lei Xia (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (HELIX-633) AutoRebalancer should ignore disabled instance and all partitions on disabled instances should be dropped in FULL_AUTO rebalance mode.
Date Tue, 13 Sep 2016 00:54:21 GMT

     [ https://issues.apache.org/jira/browse/HELIX-633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lei Xia closed HELIX-633.
-------------------------
    Resolution: Fixed

> AutoRebalancer should ignore disabled instance and all partitions on disabled instances
should be dropped in FULL_AUTO rebalance mode.
> --------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HELIX-633
>                 URL: https://issues.apache.org/jira/browse/HELIX-633
>             Project: Apache Helix
>          Issue Type: Bug
>            Reporter: Lei Xia
>            Assignee: Lei Xia
>
> Now, if a node is disabled in cluster but stays to appear in LIVEINSTANCES.
> Helix AutoRebalancer still assign partitions on the disabled node, but not sending state
transition messages to the node. So all partitions which belonged to that node disappeared
from EV.
> The right behavior is that AutoRebalancer should ignore the
> disabled node or the node should disappear from live instances.
> After this fix, in Helix Full-Auto rebalance mode, if an instance is disabled from its
config, no matter it is live or not, the partitions on the disabled node will be transferred
to DROPPED state, and the partitions will be redistributed to all other live and enabled instances.



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