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https://issues.apache.org/jira/browse/IGNITE-3813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15458473#comment-15458473
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Taras Ledkov commented on IGNITE-3813:
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At the stacktrace I see a possible contention at
{{CacheObjectBinaryProcessorImpl.affinityKey}} and then on the metadata of
binary marshaler. Because the method {{CacheMapEntry.obsolete}} is synchronized.
> High contention on GridCacheMapEntry.obsolete() on loading data to data
> stremer with composite keys
> ---------------------------------------------------------------------------------------------------
>
> Key: IGNITE-3813
> URL: https://issues.apache.org/jira/browse/IGNITE-3813
> Project: Ignite
> Issue Type: Improvement
> Affects Versions: 1.7
> Reporter: Dmitry Karachentsev
> Assignee: Taras Ledkov
> Fix For: 1.8
>
> Attachments: jstack.log
>
>
> On loading entries with non-primitive key to data streamer too many calls to
> metadata cache which causes high contention on GridCacheMapEntry.
> Example thread dump in attachment.
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