[logback-user] Problem with Logging in Linux

Adam Gordon adam.n.gordon at gmail.com
Mon Aug 27 19:32:57 CEST 2012 

I could be wrong, but I seem to recall that you cannot use the -cp flag
when using -jar.  I think it tries to get the classpath from the JAR's
manifest.

--adam

http://gordonizer.com



On Mon, Aug 27, 2012 at 10:15 AM, Oliver Zemann <oliver.zemann at gmail.com>wrote:

> The problem is that its not reliable to put the logback.xml into the
> jar. Is there a way to do that with command line? I tried with java
> -cp . -jar dist\AntTest.jar which was also not working. The
> logback.xml was located in .
>
> 2012/8/27 Abraham Lin <abraham.lin at post.harvard.edu>:
> > The "lib" folder is generally not on the classpath; however, JARs within
> the
> > folder are. If you know that other libraries are being successfully
> loaded
> > from the "lib" folder, then one thing to try is to create a minimal JAR
> > containing just logback.xml. The other option would be to just package
> > logback.xml with the rest of your application code (which is what Maven
> does
> > with items under src/main/resources by default).
> >
> > -Abraham
> >
> >
> > On Mon, Aug 27, 2012 at 11:07 AM, Oliver Zemann <oliver.zemann at gmail.com
> >
> > wrote:
> >>
> >> How to reproduce:
> >>
> >> Create a new Java Application in Netbeans with following content:
> >>
> >> package com.logbackanttest;
> >>
> >> import ch.qos.logback.classic.LoggerContext;
> >> import ch.qos.logback.core.util.StatusPrinter;
> >> import org.slf4j.Logger;
> >> import org.slf4j.LoggerFactory;
> >>
> >> public class LogbackAntTest {
> >> private static final Logger LOG =
> >> LoggerFactory.getLogger(LogbackAntTest.class);
> >>     /**
> >>      * @param args the command line arguments
> >>      */
> >>     public static void main(String[] args) {
> >>         LOG.trace("TRACING");
> >>         LOG.error("ERROR");
> >>         LoggerContext lc = (LoggerContext)
> >> LoggerFactory.getILoggerFactory();
> >>     // print logback's internal status
> >>     StatusPrinter.print(lc);
> >>
> >>     }
> >> }
> >>
> >> Now try to get it working ;)
> >>
> >> I really tried alot, but it makes no difference where i copy the
> >> logback.xml into. I tried it with the dist/ folder, with the lib
> >> folder (which must be in the classpath, otherwise the application
> >> would not start at all).
> >> I have absolutly no idea whats going on - i guess with maven it just
> >> copies the logback.xml into the jar and uses that (i created a
> >> jar-with-dependencies).
> >>
> >>
> >>
> >> 2012/8/27 Oliver Zemann <oliver.zemann at gmail.com>:
> >> > I was able to easily get it working with maven when i copied the file
> >> > into my resources folder, but it is not working with ant. Somehow it
> >> > is not found, in that case all debugging options in the xml makes no
> >> > sense as this is just not found.
> >> >
> >> > I tested it with StatusPrinter and printing the LoggerContext:
> >> >
> >> > run:
> >> > 12:58:06.590 [main] ERROR com.logbackanttest.LogbackAntTest - ERROR
> >> > 12:58:06,545 |-INFO in ch.qos.logback.classic.LoggerContext[default] -
> >> > Could NOT find resource [logback.groovy]
> >> > 12:58:06,545 |-INFO in ch.qos.logback.classic.LoggerContext[default] -
> >> > Could NOT find resource [logback-test.xml]
> >> > 12:58:06,545 |-INFO in ch.qos.logback.classic.LoggerContext[default] -
> >> > Could NOT find resource [logback.xml]
> >> > 12:58:06,546 |-INFO in ch.qos.logback.classic.LoggerContext[default] -
> >> > Setting up default configuration.
> >> >
> >> > I am currently in the project root directory, where a logback.xml is
> >> > located. Also the dist folder (created by netbeans) contains a
> >> > logback.xml and inside this dist folder the folder lib is created
> >> > (containing the 3 jars, logback common, classic and slf4j) where also
> >> > a logback.xml is located.
> >> >
> >> > 2012/8/27 Oliver Zemann <oliver.zemann at gmail.com>:
> >> >> The problem is that the software is running productive on customer
> >> >> side, so there is no way to just deinstall the application and
> >> >> reinstall it...
> >> >>
> >> >> * What version of logback and slf4j are you using?
> >> >> logback 1.0.6 (classic and core), slf4j-api 1.6.5
> >> >>
> >> >> * Which flavor (and version) of Linux are you running?
> >> >> CentOS 5.8 and 6.3
> >> >>
> >> >> * Does the same problem occur when you try your logback config in a
> >> >> simple
> >> >>  HelloWorld app (outside of install4j)?
> >> >> Just tried it with creating a standalone jar from maven
> >> >> (jar-with-dependencies) and its working as expected but its embedded
> >> >> now. will check this in a few moments.
> >> >>
> >> >> Regards,
> >> >> Oli
> >> >>
> >> >> 2012/8/27 Thorbjørn Ravn Andersen <thunderaxiom at hotmail.com>:
> >> >>> Have you enabled automatic printing of status messages in case of
> >> >>> warming or
> >> >>> errors?
> >> >>>
> >> >>>
> >> >>>
> >> >>> (see
> >> >>>
> >> >>>
> http://logback.qos.ch/manual/configuration.html#automaticStatusPrinting)
> >> >>>
> >> >>>
> >> >>>
> >> >>> It will go to your console.
> >> >>>
> >> >>>
> >> >>>
> >> >>> From: logback-user-bounces at qos.ch [mailto:
> logback-user-bounces at qos.ch]
> >> >>> On
> >> >>> Behalf Of Tony Trinh
> >> >>> Sent: 25. august 2012 23:57
> >> >>> To: logback users list
> >> >>> Subject: Re: [logback-user] Problem with Logging in Linux
> >> >>>
> >> >>>
> >> >>>
> >> >>> On Fri, Aug 24, 2012 at 6:52 AM, Oliver Zemann
> >> >>> <oliver.zemann at gmail.com>
> >> >>> wrote:
> >> >>>
> >> >>> Hi, i have the absolut identical file for Windows which works as
> >> >>> expected (logging), but not for linux:
> >> >>>
> >> >>> http://rifers.org/paste/show/1801
> >> >>>
> >> >>> There is just no logging - i started everything as root. Even when i
> >> >>> use the FileAppender with its file name property set to
> "somelog.log"
> >> >>> or "/root/somelog.log" it just saves nothing and i have no idea why.
> >> >>>
> >> >>> I used updatedb && locate to find a file called like this but there
> >> >>> was nothing. Also lsof with a grep find nothing opened. So it is
> >> >>> really not logging.
> >> >>>
> >> >>> Regards,
> >> >>> Oli
> >> >>>
> >> >>>
> >> >>>
> >> >>> Your config for the RollingFileAppender is missing the <file>
> element.
> >> >>> The
> >> >>> manual contains a good example of all the necessary elements [1].
> >> >>> logback
> >> >>> should print a warning in the debug output for this.
> >> >>>
> >> >>>
> >> >>>
> >> >>> It would be helpful if you provided additional details to reproduce
> >> >>> the
> >> >>> problem:
> >> >>>
> >> >>>
> >> >>>
> >> >>>  * What version of logback and slf4j are you using?
> >> >>>
> >> >>>  * Which flavor (and version) of Linux are you running?
> >> >>>
> >> >>>  * Does the same problem occur when you try your logback config in a
> >> >>> simple
> >> >>> HelloWorld app (outside of install4j)?
> >> >>>
> >> >>>
> >> >>>
> >> >>> FYI, your logback config works (writes to a file) for me in Android.
> >> >>>
> >> >>>
> >> >>>
> >> >>> It looks like Install4j supports a console [2], when running  the
> >> >>> installer
> >> >>> with "-c". It might be worth seeing if logback's debug-output prints
> >> >>> in that
> >> >>> console.
> >> >>>
> >> >>>
> >> >>>
> >> >>> [1]:
> >> >>>
> http://logback.qos.ch/manual/appenders.html#logback-RollingTimeBased
> >> >>>
> >> >>> [2]:
> http://www.ej-technologies.com/products/install4j/whatsnew4.html
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> _______________________________________________
> >> >>> Logback-user mailing list
> >> >>> Logback-user at qos.ch
> >> >>> http://mailman.qos.ch/mailman/listinfo/logback-user
> >> _______________________________________________
> >> Logback-user mailing list
> >> Logback-user at qos.ch
> >> http://mailman.qos.ch/mailman/listinfo/logback-user
> >
> >
> >
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