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https://issues.apache.org/jira/browse/ZOOKEEPER-4427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17460528#comment-17460528
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Andor Molnar commented on ZOOKEEPER-4427:
-----------------------------------------
{quote}I think it is good to use Sl4j and provide the logback implementation.
{quote}
This is the intention of this ticket.
I prefer logback over log4j2, because of simplicity. I outlined my reasons in
the email thread.
> Migrate to Logback
> ------------------
>
> Key: ZOOKEEPER-4427
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4427
> Project: ZooKeeper
> Issue Type: Improvement
> Components: other
> Affects Versions: 3.8
> Reporter: Andor Molnar
> Assignee: Andor Molnar
> Priority: Major
> Labels: log4j, logback, logging
> Fix For: 3.8.0
>
>
> Due to the recent issues with log4j2 the migration for another logging
> library has come up again. Although log4j1 is not impacted by the
> vulnerability, the upgrade to log4j2 was abandoned multiple times in ZK
> history.
> I suggest now to migrate to {{logback}} which is also a well-maintained and
> mature project as well as it's much easier to migrate from log4j1.
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