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https://issues.apache.org/jira/browse/HADOOP-6807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-6807.
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    Resolution: Won't Fix
    
> Log directly from jetty to commons logging, bypassing SLF4J
> -----------------------------------------------------------
>
>                 Key: HADOOP-6807
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6807
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>    Affects Versions: 0.21.0
>            Reporter: Steve Loughran
>            Priority: Minor
>
> Jetty may default to logging through SLF4J, but don't actually need it; you 
> can provide your own logger which goes straight to commons-logging, I've done 
> something similar in the past:
> [[http://smartfrog.svn.sourceforge.net/viewvc/smartfrog/trunk/core/components/jetty/src/org/smartfrog/services/jetty/log/]]
> You just need to point jetty at the relevant logger by setting up the 
> relevant JVM property, such as 
> {{-Dorg.mortbay.log.class=org.smartfrog.services.jetty.log.JettyLogger}}. 
> Doing something similar in Avro/Hadoop-common would eliminate SLF4J from the 
> dependency graph, route via commons-logging and then, usually, to Log4J, so 
> having only one log to manage. All JVM startup scripts would need to set the 
> relevant property, it is harmless on JVMs that don't start up Jetty6+

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