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https://issues.apache.org/jira/browse/SOLR-7825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641717#comment-14641717
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ASF subversion and git services commented on SOLR-7825:
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Commit 1692634 from [email protected] in branch 'dev/branches/branch_5x'
[ https://svn.apache.org/r1692634 ]
SOLR-7825: Forbid all usages of log4j and java.util.logging classes in Solr
> Forbid usage of log4j and JUL logger in Solr
> --------------------------------------------
>
> Key: SOLR-7825
> URL: https://issues.apache.org/jira/browse/SOLR-7825
> Project: Solr
> Issue Type: Improvement
> Components: Server
> Affects Versions: 5.2.1
> Reporter: Oliver Schrenk
> Assignee: Shalin Shekhar Mangar
> Priority: Minor
> Attachments: SOLR-7825.patch, SOLR-7825.patch, slf4j.patch
>
>
> There are a few classes that directly rely on log4j to be on the classpath
> instead and don't use the slf4j logging facade. This creates problems when
> trying to switch the logging implementation.
> 1. org.apache.solr.core.ZkContainer
> https://github.com/apache/lucene-solr/blob/trunk/solr/core/src/java/org/apache/solr/core/ZkContainer.java#L218
> I don't know the impact of this change, but shouldn't this call
> `org.apache.solr.logging.MDCLoggingContext.clear()` ?
> 2. org.apache.solr.handler.component.RangeFacetProcessor and
> org.apache.solr.handler.component.RangeFacetRequest
> should use slf4j instead of log4j
> I had a stab at it at
> https://github.com/oschrenk/lucene-solr/commit/025b4802caf0360c63a3554af82e9ed4c94ff5a3#diff-7d822e8ff8ff21d88437652bbc894739R28
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