activemq/activemq-core
Gary Tully cb967831d6 https://issues.apache.org/jira/browse/AMQ-3188 - Full table scan for durable subs in jdbc store when priority enabled; very slow with large message backlog
added more state to the topic message store such that it can ask the db for a single priority at a time which is indexed. This avoids a full table scan.
send rate with active durable subs vs inactive durable subs is now in the region of 6x from 40x. validation test included.

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1073453 13f79535-47bb-0310-9956-ffa450edef68
2011-02-22 18:51:54 +00:00
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