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From "Ryan McKinley (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-3358) Capture Logging Events from JUL and Log4j
Date Wed, 18 Apr 2012 17:28:40 GMT

    [ https://issues.apache.org/jira/browse/SOLR-3358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13256723#comment-13256723
] 

Ryan McKinley commented on SOLR-3358:
-------------------------------------

bq. so I don't understand why the log4j jar is being added! Why is this necessary?

The log4j-over-slf4j.jar only wraps the calls to write events, it does not wrap anything for
handling events (Appender and LoggingEvent).  Ideally log4j would only be in the classpath
for:
https://svn.apache.org/repos/asf/lucene/dev/trunk/solr/core/src/java/org/apache/solr/logging/log4j/

The point of this is to capture events if the end user binds JUL or Log4j.  Alternatively
I could put the log4j implementation elsewhere, but that seems kinda silly since lots of people
actually use log4j
 

                
> Capture Logging Events from JUL and Log4j
> -----------------------------------------
>
>                 Key: SOLR-3358
>                 URL: https://issues.apache.org/jira/browse/SOLR-3358
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Ryan McKinley
>            Assignee: Ryan McKinley
>         Attachments: SOLR-3358-compile-path.patch, SOLR-3358-logging.patch, SOLR-3358-logging.patch
>
>
> The UI should be able to show the last few log messages.  To support this, we will need
to register an Appender (log4j) or Handler
> (JUL) and keep a buffer of recent log events.

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