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https://issues.apache.org/jira/browse/HBASE-26691?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17479809#comment-17479809
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Duo Zhang commented on HBASE-26691:
-----------------------------------
The logj41 shim is not enough to make hadoop work. It does not include all the
appender implementations but there are several customized appender
implementations so at least, when running UTs we will fail with class not
found...
> Replacing log4j with reload4j for branch-2.x
> --------------------------------------------
>
> Key: HBASE-26691
> URL: https://issues.apache.org/jira/browse/HBASE-26691
> Project: HBase
> Issue Type: Task
> Components: logging
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Fix For: 2.5.0, 2.4.10
>
>
> There are several new CVEs for log4j1 now.
> As it is not suitable to upgrade to log4j2 for 2.x releases, let's replace
> the log4j1 dependencies with reload4j.
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