[Java Broker] Update BDB store to v5 and utilise explicit log flush for
significant performance improvement
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Key: QPID-3736
URL: https://issues.apache.org/jira/browse/QPID-3736
Project: Qpid
Issue Type: Improvement
Reporter: Rob Godfrey
Assignee: Rob Godfrey
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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