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https://issues.apache.org/jira/browse/DERBY-3092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Knut Anders Hatlen resolved DERBY-3092.
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Fix Version/s: 10.6.0.0
Resolution: Fixed
Thank you very much for running these tests, Kristian! No other problems
related to this fix have been seen after the commit, as far as I'm aware, so
I'm resolving the issue.
> Use java.util.concurrent in TransactionTable to improve scalability
> -------------------------------------------------------------------
>
> Key: DERBY-3092
> URL: https://issues.apache.org/jira/browse/DERBY-3092
> Project: Derby
> Issue Type: Improvement
> Components: Store
> Affects Versions: 10.3.1.4
> Reporter: Dyre Tjeldvoll
> Assignee: Knut Anders Hatlen
> Fix For: 10.6.0.0
>
> Attachments: derby-3092-1a-map.diff, derby-3092-1b-map.diff,
> derby-3092-2a-count.diff, derby-3092-3a-xa-visitor.diff,
> derby-3092-4a-more-visitors.diff, derby-3092-5a-dynamic-loading.diff,
> derby-3092-5a-dynamic-loading.stat, xact-concept.diff, xact-concept.png
>
>
> Running scalability tests with the client and buffer manager from DERBY-2911
> shows that access to the TransactionTable.trans (a Hashtable) and
> XactFactory.tranId (a shared long) are the next major sources of contention.
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