[jboss-jira] [JBoss JIRA] (JGRP-1585) Upgrade log4j

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1585?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12761334#comment-12761334 ] 

Bela Ban commented on JGRP-1585:
--------------------------------

log4j2:
* Requires 2 JARs: API and CORE
** We could copy the required API code (mainly LogManager.getLogger()) into JGroups's LogFactory ...
* The level cannot be set at runtime, unless we downcast the Logger to its implementation class (setting the level is not exposed in the interface).
                
> Upgrade log4j
> -------------
>
>                 Key: JGRP-1585
>                 URL: https://issues.jboss.org/browse/JGRP-1585
>             Project: JGroups
>          Issue Type: Task
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 3.4
>
>
> log4j has some heavy synchronization, which can sometimes lead to code blocking up to 30 seconds (see [1]).
> Investigate whether we should switch to log42 [2]. Perhaps we can simply program against the API (30K) and not even ship the implementation ?
> [1] https://issues.apache.org/bugzilla/show_bug.cgi?id=51047
> [2] http://logging.apache.org/log4j/2.x/

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