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From: Grant Ingersoll <gsingers@apache.org>
To: java-dev@lucene.apache.org
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Subject: Re: Java logging in Lucene
Date: Fri, 5 Dec 2008 17:31:12 -0500
References: <786fde50812051017k477c6d11tf112678525d9ad84@mail.gmail.com>
	 <DB6D1973-53AE-487B-B9CD-CF6AE20056DD@apache.org>
	 <49397AFD.5060706@apache.org>
	 <346DD31B-A72A-42EE-AF2C-2366CEE20BB3@mikemccandless.com>
	 <786fde50812051138i53640492yc32d8df3f7b02ecb@mail.gmail.com>
	 <786fde50812051235n4c2e30fdpce4fef42b81fdce8@mail.gmail.com>
	 <49399657.1010602@apache.org>
 <8837fb770812051313o732679fasef3d9c8524852929@mail.gmail.com>
 <49399ADD.4020200@apache.org>

For some additional context, go over to the Solr mail archive and  
search for "Logging, SLF4J" or see http://lucene.markmail.org/message/gxifhjzmn6hgloy7?q=Solr+logging+SLF4J

I personally don't like JUL and would be against using it.  I could,  
maybe, just maybe, be talked into SLF4J.

The other thing I worry about is that the logging will probably be  
carefully crafted at first, but then will grow and grow and end up in  
some tight loops, etc.

Ah, for the days of the C preprocessor, where we could easily deliver  
a version of Lucene w/ logging and without for this kind of  
debugging...  ;-)

-Grant

On Dec 5, 2008, at 4:19 PM, Doug Cutting wrote:

> John Wang wrote:
>> If we were to depend on a jar for logging, then why not log4j or  
>> commons-logging?
>
> Lucene is used by many applications.  Many of those applications  
> already perform some kind of logging.  We'd like whatever Lucene  
> adds to fit in with their existing logging framework, not conflict  
> with it.  Thus the motivation to use a meta-logging framwork like  
> commons logging or slf4j.  And articles like the following point  
> towards slf4j, not commons logging.
>
> http://www.qos.ch/logging/thinkAgain.jsp
>
> Doug
>
>
>
>
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