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

[Ceki Gulcu]

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
> 
> 
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> 
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-- 
Ceki Gülcü
Logback: The reliable, generic, fast and flexible logging framework for Java.
http://logback.qos.ch