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https://issues.apache.org/jira/browse/IGNITE-3261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Semen Boikov closed IGNITE-3261.
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Assignee: (was: Semen Boikov)
> AffinityKey is not stored in the metadata cache
> -----------------------------------------------
>
> Key: IGNITE-3261
> URL: https://issues.apache.org/jira/browse/IGNITE-3261
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 1.5.0.final
> Reporter: Denis Magda
> Priority: Critical
> Labels: community, important
> Fix For: 1.7
>
> Attachments: Ignite-MarshallBenchmark.zip
>
>
> Presently we don't register predefined and system classes in metadata cache
> which can lead to significant performance drops when these types used as keys.
> As an example we have {{AffinityKey}} class. It's not registered in the
> metadata cache and as a result client nodes don't update their
> {{CacheObjectBinaryProcessorImpl.clientMetaDataCache}}. After that when a
> client node needs to get {{AffinityKey}} metadata using
> {{CacheObjectBinaryProcessorImpl.metadata(typeId)}} it will always call
> metadata cache and this is a bottleneck. The drop can be significant because
> this method is called from methods like
> {{GridAffinityProcessor.mapKeyToPrimaryAndBackups}}.
> In attach you can find a simple benchmark that shows how slower a result if
> AffinityKey is used.
> As a solution we can register {{AffinityKey}} and other system and predefined
> classes (?) in the metadata cache.
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