[QPID-3736] [Java Broker] Update BDB store to v5 and utilise explicit log flush for significant performance improvement

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.15
• Component/s: Broker-J
• Assignee: Robert Godfrey
• Reporter: Robert Godfrey
• Created: 08/Jan/12 17:48
• Updated: 11/Feb/15 20:06
• Resolved: 16/Jan/12 11:56

Description

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%...