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https://issues.apache.org/jira/browse/OOZIE-3136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16646713#comment-16646713
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Robert Kanter commented on OOZIE-3136:
--------------------------------------

You probably don't need to create two full LocalOozie/MiniOozie instances; just 
two (or more) of the XLogService and maybe some others - that'll help cut down 
on any interference we might get from running two Oozies on the same machine.  
There may be other options two; for instance, TestZKXLogStreamingService 
actually tests log streaming from another server by making a dummy servlet.

> Upgrade from Log4j 1.x to 2.x
> -----------------------------
>
>                 Key: OOZIE-3136
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3136
>             Project: Oozie
>          Issue Type: Sub-task
>            Reporter: Attila Sasvari
>            Assignee: Julia Kinga Marton
>            Priority: Major
>
> {{5 August 2015 --The Apache Logging Services™ Project Management Committee 
> (PMC) has announced that the Log4j™ 1.x logging framework has reached its end 
> of life (EOL) and is no longer officially supported.}} 
> https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces
> We should upgrade from Log4j 1.x to 2.x . Perhaps we could use slf4j .
> Related tickets: MAPREDUCE-6983, HADOOP-12956, OOZIE-3135



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