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Posted to user@karaf.apache.org by Claus Ibsen <cl...@gmail.com> on 2013/02/28 10:57:32 UTC
Apache Karaf - Default logging pattern in org.ops4j.pax.logging.cfg
Apache Karaf 2.3.0 has the following default log4j configuration
log4j.appender.out.layout.ConversionPattern=%d{ISO8601} | %-5.5p |
%-16.16t | %-32.32c{1} | %-32.32C %4L | %X{bundle.id} -
%X{bundle.name} - %X{bundle.version} | %m%n
Notice that we use %4L to output the source code lines
But according to log4j documentation this is extremely slow
http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html
L Used to output the line number from where the logging request was issued.
WARNING Generating caller location information is extremely slow and
should be avoided unless execution speed is not an issue.
I just wonder if pax-logging or something has some improvements so
this in not the case for Karaf?
--
Claus Ibsen
-----------------
Red Hat, Inc.
FuseSource is now part of Red Hat
Email: cibsen@redhat.com
Web: http://fusesource.com
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Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen
Re: Apache Karaf - Default logging pattern in org.ops4j.pax.logging.cfg
Posted by Jean-Baptiste Onofré <jb...@nanthrax.net>.
Hi Claus,
nice catch, I gonna take a look in Pax Logging how we handle this
(direct delegation to Log4j or wrapper on top).
Thanks
Regards
JB
On 02/28/2013 10:57 AM, Claus Ibsen wrote:
> Apache Karaf 2.3.0 has the following default log4j configuration
>
> log4j.appender.out.layout.ConversionPattern=%d{ISO8601} | %-5.5p |
> %-16.16t | %-32.32c{1} | %-32.32C %4L | %X{bundle.id} -
> %X{bundle.name} - %X{bundle.version} | %m%n
>
> Notice that we use %4L to output the source code lines
>
> But according to log4j documentation this is extremely slow
> http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html
>
> L Used to output the line number from where the logging request was issued.
> WARNING Generating caller location information is extremely slow and
> should be avoided unless execution speed is not an issue.
>
>
> I just wonder if pax-logging or something has some improvements so
> this in not the case for Karaf?
>
>
--
Jean-Baptiste Onofré
jbonofre@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com