[logback-user] Messages from multiple senders interleaved on one line

[Michael Olson]

The bug has been submitted here:
http://jira.qos.ch/browse/LBCLASSIC-158

On Thu, Oct 1, 2009 at 5:21 AM, Johan Bos <johan.bos at c6.eu> wrote:

> This kind of problem could happen if you have multiple web application
> loading the same logback library and obviously the same configuration file
> pointing to the same file.
>
> Both web applications would try to log to the same file at the same moment,
> which would cause messages to be append to each other.
>
> I think I got this problem, solved by either placing the logback libraries
> in each application (copying), using a different config file or by either
> setting up a context selector variable using JNDI, cf logback manual on the
> context selection.
>
> -----Message d'origine-----
> De : logback-user-bounces at qos.ch [mailto:logback-user-bounces at qos.ch] De
> la
> part de Ceki Gulcu
> Envoyé : jeudi 1 octobre 2009 11:15
> À : logback users list
> Objet : Re: [logback-user] Messages from multiple senders interleaved on
> one
> line
>
>
> Hello Michael,
>
> It's either a very serious bug in logback, or there is something else going
> on,
> such as another process writing to the same file. Could you please enter a
> bug
> report describing the problem? Mark the bug as critical.
>
> Is the duplication occurring in ConsoleAppener or in RollingFileAppender?
> Which
> version of logback is this?
>
> TIA,
>
> Michael Olson wrote:
> > Hello all,
> >
> > I'm new to logback, and I'm trying out a configuration that is, more or
> > less, a word-for-word transcription of an example configuration from the
> > documentation; you can view the configuration here:
> > http://logback.pastebin.com/m1a6f2875
> >
> > I'm having problems where I'm getting interleaved messages on a single
> > line.  I don't believe this is expected behavior, and it certainly makes
> > it harder to understand what's going on.  I've tried searching the
> > mailing list and bug list to no avail.  Here's an example from one log
> file:
> > 2009-09-30 15:45:31,649 [Thread-5]   INFO         CalaisSubmitter -
> > CalaisFeedSubmitter clean shutdown
> > 2009-09-30 15:45:33,2302009-09-30 15:45:33,230 [ [Thread-15] INFO
> > PostItemSubmitter - Shutdown aborted queue operation
> > Thread-19]                           INFO       PostItemSubmitter -
> > Shutdown aborted queue operation
> > 2009-09-30 15:45:33,231 [2009-09-30 15:45:33,231Thread-17] [ INFO
> > PostItemSubmitter - Shutdown aborted queue operation
> > 2009-09-30 15:45:33,231 [2009-09-30 15:45:33,231Thread-17] [Thread-21]
> > INFO       PostItemSubmitter - Shutdown aborted queue operation
> > 2009-09-30 15:45:34,230 [main]       INFO                Eventweb - All
> > stopped
> >
> > and here's an example from another log file:
> > 2009-09-30 15:47:10,061 [Thread-5]   INFO         CalaisSubmitter -
> > CalaisFeedSubmitter clean shutdown
> > 2009-09-30 15:47:11,3782009-09-30 15:47:11,378 [ [2009-09-30
> > 15:47:11,378 [Thread-15] INFO       PostItemSubmitter - Shutdown aborted
> > queue operation
> > 2009-09-30 15:47:11,3782009-09-30 15:47:11,378 [ [2009-09-30
> > 15:47:11,378 [Thread-15]Thread-21]Thread-17] INFO
> > PostItemSubmitter - Shutdown aborted queue operation
> > 2009-09-30 15:47:11,3782009-09-30 15:47:11,378 [ [2009-09-30
> > 15:47:11,378 [Thread-15]Thread-21] INFO       PostItemSubmitter -
> > Shutdown aborted queue operation
> > 2009-09-30 15:47:11,378 [Thread-19]  INFO       PostItemSubmitter -
> > Shutdown aborted queue operation
> > 2009-09-30 15:47:12,378 [main]       INFO                Eventweb - All
> > stopped
> >
> > Can anyone tell me why I'm getting interleaved messages, and what I
> > might be able to do to prevent this from happening?
> >
> > Thanks,
> > - Michael
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Logback-user mailing list
> > Logback-user at qos.ch
> > http://qos.ch/mailman/listinfo/logback-user
>
> --
> Ceki Gülcü
> Logback: The reliable, generic, fast and flexible logging framework for
> Java.
> http://logback.qos.ch
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