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Posted to dev@lucene.apache.org by "Ralph Goers (JIRA)" <ji...@apache.org> on 2017/12/22 04:54:00 UTC
[jira] [Comment Edited] (SOLR-7887) Upgrade Solr to use log4j2 --
log4j 1 now officially end of life
[ https://issues.apache.org/jira/browse/SOLR-7887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16300958#comment-16300958 ]
Ralph Goers edited comment on SOLR-7887 at 12/22/17 4:53 AM:
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Log4j 2.10.0 provides AppenderSkeleton in the log4j-1.2-api jar. I verified that it solves the Hadoop issue when I migrated Flume to Log4j 2. Also, I was informed that the reason Oracle closed the issue with doclint as they consider there to be workarounds - either don't use doclint or disable annotation processing. If you have no custom Log4j plugins and no other need for annotation processing you can disable it.
was (Author: ralph.goers@dslextreme.com):
Log4j 2.10.0 provides AppenderSkeleton in the log4j-1.2-api jar. I verified that it solves the Hadoop issue when I migrated Flume to Log4j 2.
> Upgrade Solr to use log4j2 -- log4j 1 now officially end of life
> ----------------------------------------------------------------
>
> Key: SOLR-7887
> URL: https://issues.apache.org/jira/browse/SOLR-7887
> Project: Solr
> Issue Type: Task
> Affects Versions: 5.2.1
> Reporter: Shawn Heisey
> Attachments: SOLR-7887-WIP.patch
>
>
> The logging services project has officially announced the EOL of log4j 1:
> https://blogs.apache.org/foundation/entry/apache_logging_services_project_announces
> In the official binary jetty deployment, we use use log4j 1.2 as our final logging destination, so the admin UI has a log watcher that actually uses log4j and java.util.logging classes. That will need to be extended to add log4j2. I think that might be the largest pain point to this upgrade.
> There is some crossover between log4j2 and slf4j. Figuring out exactly which jars need to be in the lib/ext directory will take some research.
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