[jira] [Created] (SOLR-7887) Upgrade Solr to use log4j2 -- log4j 1 now officially end of life

["Shawn Heisey (JIRA)" <ji...@apache.org>]

Shawn Heisey created SOLR-7887:
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             Summary: 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


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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