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https://issues.apache.org/jira/browse/IGNITE-4765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Mashenkov updated IGNITE-4765:
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Component/s: cache
> Different partition mapping for caches that use Fair Affinity Function
> ----------------------------------------------------------------------
>
> Key: IGNITE-4765
> URL: https://issues.apache.org/jira/browse/IGNITE-4765
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Reporter: Alper Tekinalp
>
> Caches created on different topology versions with fair affinity funtion may
> have different partition mapping. The cause of this problem is fair affinity
> function calculates partition mappings based on previous assignments. When
> rebalancing partitions previous assignments for a cache is known and new
> assignment calculated based on that. But when you create a new cache there is
> no previous assignments and the calculation is different.
> Reproduction steps:
> - Start node1
> - Start cache1
> - Start node2
> - Partitions for cache1 will be rebalanced
> - Start cache2
> - Check partition mapping for both cache1 and cache2
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