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https://issues.apache.org/jira/browse/IGNITE-3905?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15814302#comment-15814302
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Taras Ledkov commented on IGNITE-3905:
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The results of optimization is available at the IGNITE-3018.
> Optimize RendezvousAffinityFunction
> -----------------------------------
>
> Key: IGNITE-3905
> URL: https://issues.apache.org/jira/browse/IGNITE-3905
> Project: Ignite
> Issue Type: Bug
> Components: cache, community, general
> Affects Versions: 1.6
> Reporter: Alexei Scherbakov
> Priority: Critical
> Fix For: 2.0
>
>
> Currently RendezvousAffinityFunction.assignPartition generates a lot of
> garbage if called very often, on example in case of rebalancing a lot of
> caches.
> This causes excessive pressure on GC, which is not always fast enough to
> clear memory, producing long GC pauses leading to node segmentation.
> We should cache calculation of nodeHashBytes in node attribute or resort to
> more efficient node hash calculation.
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