[ovirt-devel] Question/thoughts about our engine logging framework

Eli Mesika emesika at redhat.com
Sun Jun 15 14:02:15 UTC 2014



----- Original Message -----
> From: "Vojtech Szocs" <vszocs at redhat.com>
> To: "Martin Perina" <mperina at redhat.com>
> Cc: devel at ovirt.org
> Sent: Friday, June 13, 2014 12:57:49 PM
> Subject: Re: [ovirt-devel] Question/thoughts about our engine logging framework
> 
> 
> 
> ----- Original Message -----
> > From: "Martin Perina" <mperina at redhat.com>
> > To: "Yair Zaslavsky" <yzaslavs at redhat.com>
> > Cc: devel at ovirt.org
> > Sent: Friday, June 13, 2014 10:43:59 AM
> > Subject: Re: [ovirt-devel] Question/thoughts about our engine logging
> > framework
> > 
> > Hi Yair,
> > 
> > I had in my mind to clean up logging framework mess for quite some time :-)
> > Currently this is the usage of logging frameworks in engine classes:
> > 
> > java.util.logging.Logger              6.8%
> > org.apache.commons.logging.Log        7.8%
> > org.apache.log4j.Logger              13.6%
> > org.ovirt.engine.core.utils.log.Log  68.8%
> > org.slf4j.Logger                      2.9%
> > 
> > I think we should definitely use only 1 logging framework for the whole
> > engine!
> > 
> > So +1 to slf4j from me.
> 
> +1 from me as well.

+1 

> 
> Note that GWT UI code uses java.util.logging exclusively to do all logging.
> (GWT emulates java.util.logging API and provides log handlers for use on
> client side such as console.log() or stdout/DevMode-during-debug handlers.)
> 
> > 
> > And once we agree to 1 logging framework, I can start preparing patches to
> > use it.
> > 
> > ----- Original Message -----
> > > From: "Yair Zaslavsky" <yzaslavs at redhat.com>
> > > To: devel at ovirt.org
> > > Sent: Friday, June 13, 2014 8:15:55 AM
> > > Subject: [ovirt-devel] Question/thoughts about our engine logging
> > > framework
> > > 
> > > Hi all,
> > > During my recent work on AAA, I was suggested by Juan Hernandez  to use
> > > slf4j
> > > logging framework which serves as a facade for other logging frameworks
> > > (including java utils logging which is now used by jboss), log4j and
> > > others.
> > > I have accepted Juan's offer, and then when looking at our LogFactory
> > > class
> > > I
> > > have noticed we use commons logging.
> > > 
> > > Several thoughts/questions -
> > > A. Why continue use our own wrapper as slf4j is already a facade.
> > > b. I think we should move cross java code to slf4j. What do you think on
> > > this
> > > point?
> > > 
> > > Some reading material -
> > > 
> > > http://javarevisited.blogspot.com.au/2013/08/why-use-sl4j-over-log4j-for-logging-in.html
> > > http://stackoverflow.com/questions/3222895/what-is-the-issue-with-the-runtime-discovery-algorithm-of-apache-commons-logging
> > > 
> > > 
> > > 
> > > Yair
> > > _______________________________________________
> > > Devel mailing list
> > > Devel at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/devel
> > > 
> > _______________________________________________
> > Devel mailing list
> > Devel at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/devel
> > 
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