[jira] [Created] (SOLR-12008) Remove log4j.properties file in solr/example/resources (and perhaps others)

["Erick Erickson (JIRA)" <ji...@apache.org>]

Erick Erickson created SOLR-12008:
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             Summary: Remove log4j.properties file in solr/example/resources (and perhaps others)
                 Key: SOLR-12008
                 URL: https://issues.apache.org/jira/browse/SOLR-12008
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: logging
            Reporter: Erick Erickson
            Assignee: Erick Erickson


As part of SOLR-11934 I started looking at log4j.properties files. Waaay back in 2015, the %C in "/solr/server/resources/log4j.properties" was changed to use %c, but the file in "solr/example/resources/log4j.properties" was not changed. That got me to looking around and there are a bunch of log4j.properties files:

./solr/core/src/test-files/log4j.properties
./solr/example/resources/log4j.properties
./solr/solrj/src/test-files/log4j.properties
./solr/server/resources/log4j.properties
./solr/server/scripts/cloud-scripts/log4j.properties
./solr/contrib/dataimporthandler/src/test-files/log4j.properties
./solr/contrib/clustering/src/test-files/log4j.properties
./solr/contrib/ltr/src/test-files/log4j.properties
./solr/test-framework/src/test-files/log4j.properties

Why do we have so many? After the log4j2 ticket gets checked in (SOLR-7887) I propose the logging configuration files get consolidated. The question is "how far"? 

I at least want to get rid of the one in solr/example, users should use the one in server/resources. Having to maintain these two separately is asking for trouble.

[~markrmiller@gmail.com] Do you have any wisdom on the properties file in server/scripts/cloud-scripts?

Anyone else who has a clue about why the other properties files were created, especially the ones in contrib?

And what about all the ones in various test-files directories? People didn't create them for no reason, and I don't want to rediscover that it's a real pain to try to re-use the one in server/resources for instance.




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