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Date: Fri, 22 Mar 2013 04:41:15 +0000 (UTC)
From: "David Smiley (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Message-ID: <JIRA.12601393.1344012655678.32921.1363927275495@arcas>
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Subject: [jira] [Commented] (SOLR-3706) Ship setup to log with log4j.
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    [ https://issues.apache.org/jira/browse/SOLR-3706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13609914#comment-13609914 ] 

David Smiley commented on SOLR-3706:
------------------------------------

As long it's _also_ easy to handle an SLF4J-less war in Tomcat, then I think it's fine too.  Nonetheless this is going to be a new thing a deployer of Solr needs to check the box in their checklist.  It might be a good idea to have a very early classloader check in SolrDispatchFilter that checks if SLF4J is there and if not then gives you a very helpful message to remedy it -- i.e. you need to place SLF4J jars in your app-server somewhere or re-pack the WAR with them.
                
> Ship setup to log with log4j.
> -----------------------------
>
>                 Key: SOLR-3706
>                 URL: https://issues.apache.org/jira/browse/SOLR-3706
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Mark Miller
>            Assignee: Mark Miller
>            Priority: Minor
>             Fix For: 4.3, 5.0
>
>         Attachments: SOLR-3706.patch, SOLR-3706-solr-log4j.patch, SOLR-3706-solr-log4j.patch
>
>
> Currently we default to java util logging and it's terrible in my opinion.
> *It's simple built in logger is a 2 line logger.
> *You have to jump through hoops to use your own custom formatter with jetty - either putting your class in the start.jar or other pain in the butt solutions.
> *It can't roll files by date out of the box.
> I'm sure there are more issues, but those are the ones annoying me now. We should switch to log4j - it's much nicer and it's easy to get a nice single line format and roll by date, etc.
> If someone wants to use JUL they still can - but at least users could start with something decent.

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