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From "Christian Moen (JIRA)" <>
Subject [jira] [Commented] (SOLR-3706) Ship setup to log with log4j.
Date Fri, 15 Mar 2013 17:00:16 GMT


Christian Moen commented on SOLR-3706:

Mark, have you tried Logback? That's a good logging implementation; arguably a better one.

David and Mark, I believe [Log4J 2||] addresses a lot
of the weaknesses in Log4J 1.x also addressed by Logback.  However, Log4J 2 hasn't been released

To me it sounds like a good idea to use Log4J 1.x now and move to Log4J 2 in the future.
> Ship setup to log with log4j.
> -----------------------------
>                 Key: SOLR-3706
>                 URL:
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Mark Miller
>            Assignee: Mark Miller
>            Priority: Minor
>             Fix For: 4.3, 5.0
>         Attachments: 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,
> If someone wants to use JUL they still can - but at least users could start with something

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