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https://issues.apache.org/jira/browse/IGNITE-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14735916#comment-14735916
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Alexey Goncharuk commented on IGNITE-1016:
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Andrey, {{force}} update is used as a fallback mechanism to make sure that
nodes are evenly loaded even in the case when no non-moving partition
assignments can be made. Can you add a specialized test when all nodes are
resided on one host and exludeNeighbors = true, and then check that nodes are
evenly loaded and there are no missed partitions? It is not possible to assign
partitions to non-neighbors if there are fewer _hosts_ in a grid than the
number of configured backups. I want to make sure that in this case we still
have the required number of partitions in any assignment.
> Add excludeNeighbors and backupFilter to FairAffinityFunction
> -------------------------------------------------------------
>
> Key: IGNITE-1016
> URL: https://issues.apache.org/jira/browse/IGNITE-1016
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: sprint-4
> Reporter: Valentin Kulichenko
> Assignee: Valentin Kulichenko
> Labels: Usability
> Fix For: ignite-1.4
>
> Attachments: ignite-1016.patch, ignite-1016.patch
>
>
> These properties are currently available only for
> {{RendezvousAffinityFunction}}.
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