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https://issues.apache.org/jira/browse/AMQ-9823?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christopher L. Shannon updated AMQ-9823:
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Summary: KahaDBStore ackAndPreparedMap is not properly cleared when
recovered acks are removed (was: KahaDB ackAndPreparedMap is not properly
cleared when recovered acks are removed )
> KahaDBStore ackAndPreparedMap is not properly cleared when recovered acks are
> removed
> --------------------------------------------------------------------------------------
>
> Key: AMQ-9823
> URL: https://issues.apache.org/jira/browse/AMQ-9823
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker, KahaDB
> Affects Versions: 6.2.0, 5.19.1, 6.1.8
> Reporter: Christopher L. Shannon
> Assignee: Christopher L. Shannon
> Priority: Major
> Fix For: 6.3.0, 5.19.2, 6.2.1
>
>
> Kahadb tracks prepared acks for an XA transaction to be recovered inside of
> the
> [ackedAndPreparedMap|https://github.com/apache/activemq/blob/7aa5bad9e3055f65b15f047ceb9f4f24327f5309/activemq-kahadb-store/src/main/java/org/apache/activemq/store/kahadb/KahaDBStore.java#L416].
>
> The map contains the set of prepared acks that were recovered. After
> commit/rollback the acks are supposed to be
> "[forgotten|https://github.com/apache/activemq/blob/7aa5bad9e3055f65b15f047ceb9f4f24327f5309/activemq-kahadb-store/src/main/java/org/apache/activemq/store/kahadb/KahaDBStore.java#L458]";
> and removed from the map.
> They method correctly clears from the set but there is a bug where an empty
> set is left in the map because the map is
> [checked|https://github.com/apache/activemq/blob/7aa5bad9e3055f65b15f047ceb9f4f24327f5309/activemq-kahadb-store/src/main/java/org/apache/activemq/store/kahadb/KahaDBStore.java#L468]
> to see if it is empty vs checking the set so the set never gets removed so
> this could in theory have a small memory leak. In practice it's probably not
> much of an issue but worth fixing as it's one line.
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