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https://issues.apache.org/jira/browse/SOLR-7887?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Rowe reopened SOLR-7887:
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Reopening to address Jenkins Maven builds' compilation failures for solr-core
module, e.g.:
{noformat}
[mvn] [INFO] Error for project: Apache Solr Core (during install)
[mvn] [INFO]
[mvn] [INFO] Compilation failure
[mvn] cannot access org.apache.yetus.audience.InterfaceAudience
[mvn] class file for org.apache.yetus.audience.InterfaceAudience not
found
[mvn]
[mvn] [INFO]
[mvn] [INFO] For more information, run Maven with the -e switch
[mvn] [INFO]
[mvn] [INFO] BUILD ERRORS
[mvn] [INFO]
[mvn] [INFO] Total time: 53 seconds
[mvn] [INFO] Finished at: Wed Apr 04 00:54:42 UTC 2018
[mvn] [INFO] Final Memory: 297M/1626M
[mvn] [INFO]
BUILD FAILED
/x1/jenkins/jenkins-slave/workspace/Lucene-Solr-Maven-7.x/build.xml:679: The
following error occurred while executing this line:
: Java returned: 1
{noformat}
> 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
>Reporter: Shawn Heisey
>Assignee: Erick Erickson
>Priority: Major
> Fix For: 7.4
>
> Attachments: SOLR-7887-WIP.patch, SOLR-7887-eoe-review.patch,
> SOLR-7887-eoe-review.patch, SOLR-7887-followup_1.patch, SOLR-7887.patch,
> SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch,
> SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch,
> SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch, SOLR-7887.patch,
> SOLR-7887_followup_2.patch, SOLR-7887_followup_2.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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