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https://issues.apache.org/jira/browse/HELIX-144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kanak Biscuitwala resolved HELIX-144.
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Resolution: Fixed
Fixed and submitted. Code review: https://reviews.apache.org/r/14704/
> Need to validate StateModelDefinition when adding new StateModelDefinition to
> Cluster
> -------------------------------------------------------------------------------------
>
> Key: HELIX-144
> URL: https://issues.apache.org/jira/browse/HELIX-144
> Project: Apache Helix
> Issue Type: Bug
> Reporter: Zhen Zhang
> Assignee: Kanak Biscuitwala
>
> we see that when DROPPED state is not in the StateModelDefinition, partition
> will fail to be dropped. this causes problem when we are using auto_rebalance
> mode, because we are dropping mappings and assign new mappings to nodes.
> things need to verify:
> 1) state transitions are all valid, no self loop/loop, no unreachable state
> 2) state meta is valid
> 3) drop state included
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