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From Jean-Baptiste Onofré (JIRA) <j...@apache.org>
Subject [jira] [Assigned] (AMQ-4721) Update slf4j library to latest version (1.7.5 currently)
Date Thu, 12 Sep 2013 08:05:51 GMT

     [ https://issues.apache.org/jira/browse/AMQ-4721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jean-Baptiste Onofré reassigned AMQ-4721:
-----------------------------------------

    Assignee: Jean-Baptiste Onofré
    
> 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
>
>
> 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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