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https://issues.apache.org/jira/browse/HELIX-633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15485816#comment-15485816
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Lei Xia commented on HELIX-633:
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Code checked in to 0.6.x branch.
https://github.com/apache/helix/commit/bc0aa76a9de6243928e53e1a1d01e7502ff8267c
> 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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