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https://issues.apache.org/jira/browse/DATAFU-162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17613383#comment-17613383
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Eyal Allweil commented on DATAFU-162:
-------------------------------------
I found [this Stack
Overflow|https://stackoverflow.com/questions/35900555/migrating-from-log4j-to-log4j2-properties-file-configuration]
question a while ago when I was looking at this issue, it may be of use to you.
> Upgrade Log4j version
> ---------------------
>
> Key: DATAFU-162
> URL: https://issues.apache.org/jira/browse/DATAFU-162
> Project: DataFu
> Issue Type: Improvement
> Reporter: Eyal Allweil
> Priority: Major
> Labels: up-for-grabs
>
> Although the [infamous Log4J
> vulnerability|https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44832]
> is not relevant for DataFu (we are dependent on log4j 1.x, which is not
> affected) it is still a pretty good idea to upgrade to a new version.
> The upgrade should keep our logs as similar as possible to the existing
> version, but this shouldn't necessitate a major version release since this
> isn't a breaking change.
>
> We can start by fixing this for datafu-spark (we don't need to update the
> other projects since they might be deprecated soon)
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