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https://issues.apache.org/jira/browse/HDFS-17382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17852225#comment-17852225
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ASF GitHub Bot commented on HDFS-17382:
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dineshchitlangia commented on PR #6584:
URL: https://github.com/apache/hadoop/pull/6584#issuecomment-2148610288
@dntjr8096 Given the larger context as explained by @steveloughran and
considering the fact the this is a temporary solution, I am inclined with Steve
on this one. May be we could just post a blog and let folks do it locally
instead of adding it to the project and then dealing with removal later.
Specially the concern about additional CVEs is very valid.
> Add Apache Log4j Extras Library to Hadoop 3.3 for Enhanced Log Rolling
> Capabilities
> -----------------------------------------------------------------------------------
>
> Key: HDFS-17382
> URL: https://issues.apache.org/jira/browse/HDFS-17382
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.4.0
> Reporter: woosuk.ro
> Priority: Minor
> Labels: pull-request-available
> Attachments: image-2024-02-25-00-46-08-841.png
>
>
> In the current Hadoop 3.4 version, the system relies on Log4j 1.x for logging
> purposes. This dependency limits the logging functionality, especially when
> it comes to rolling log files such as 'hdfs-audit.log'. Rolling log files is
> crucial for managing log size and ensuring logs are rotated out over time to
> prevent excessive disk space usage. However, the Log4j 1.x version integrated
> within Hadoop lacks the necessary capabilities to efficiently handle log
> rolling.
> This library extends logging capabilities, including more flexible and
> configurable log rolling features. By deploying this library, we can enable
> advanced rolling strategies such as time-based rolling, size-based rolling,
> and compression of rolled logs, which are not supported by the default Log4j
> 1.x setup in Hadoop.
> The integration of Apache Log4j Extras into Hadoop will significantly improve
> log management by allowing for more sophisticated and configurable log
> rotation policies. This enhancement is particularly important for maintaining
> system performance and reliability, as well as for compliance with log
> retention policies.
> Although there are plans to upgrade to Log4j 2 in the forthcoming Hadoop 3.5
> version, which will inherently solve these issues by providing enhanced
> logging features, there is an immediate need to enable advanced log rolling
> capabilities in the current and previous versions of Hadoop.
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