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https://issues.apache.org/jira/browse/QPID-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robbie Gemmell resolved QPID-3736.
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Resolution: Fixed
Change looks good to me.
> [Java Broker] Update BDB store to v5 and utilise explicit log flush for
> significant performance improvement
> -----------------------------------------------------------------------------------------------------------
>
> Key: QPID-3736
> URL: https://issues.apache.org/jira/browse/QPID-3736
> Project: Qpid
> Issue Type: Improvement
> Components: Java Broker, Java Broker BDB Store
> Reporter: Rob Godfrey
> Assignee: Rob Godfrey
> Fix For: 0.15
>
> Attachments: QPID-3736.diff
>
>
> BDB v5 adds a new method to Environment to allow for the flushing of logs to
> disk (synchronously if desired) without having to run a full checkpoint.
> This seems to directly address our use case of BDB.
> Upgrading BDB and making use of this feature shows significant performance
> benefits, especially where there are a low number of concurrent connections.
> For a single producer/consumer transactional case, I have observed a
> performance increase of 56%; for 2 producers/consumers 50%...
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