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https://issues.apache.org/jira/browse/AMQ-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish resolved AMQ-4721.
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Resolution: Fixed
Patch applied after review, looks good, thanks!
> Update slf4j library to latest version (1.7.5 currently)
> --------------------------------------------------------
>
> Key: AMQ-4721
> URL: https://issues.apache.org/jira/browse/AMQ-4721
> Project: ActiveMQ
> Issue Type: Improvement
> Components: Broker
> Affects Versions: 5.8.0
> Reporter: Timothy Bish
> Assignee: Jean-Baptiste Onofré
> Priority: Minor
> Fix For: 5.9.0
>
> Attachments: AMQ-4721.patch
>
>
> We are currently on an older release v1.6.6 and should move on to the latest
> v1.7.5 to pick up performance improvements etc.
> From the changelog:
> "performance improvements: The logger factories in most SLF4J modules namely
> in jcl-over-slf4j, log4j-over-slf4j, slf4j-jcl, slf4j-jdk14, slf4j-log4j12,
> and slf4j-simple now use a ConcurrentHashMap instead of a regular HashMap to
> cache logger instances. This change significantly improves logger retrieval
> times at the cost of some memory overhead. This improvement was requested in
> bug #298 by Taras Tielkes who also provided the relevant patch.
> Given the significance of these performance improvements, users are highly
> encouraged to migrate to SLF4J version 1.7.5 or later. "
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