[logback-user] Logging from different threads

[Ceki Gulcu]

It may be a bug. Could your please enter a bug report?

Lukas Zapletal wrote:

> I am using %logger{20} pattern and it seems this very long package cannot
> even fit in this pattern (with only 20 characters permitted). I have raised
> this value to 200 and now it works - the package and the log record appears:
> 
> com.pike.puma.wm.isd2dita.core.g.project.server.pkg.isobjecttype.isobject.ISObjectContentGenerator
> 
> I would suppose that if the name of the logger is longer and cannot be
> shortened to the limit something like 
> 
> i.i.ISObjectContentGenerator 
> 
> will appear throwing away beginning of the name. Not at all. I have also
> tried %logger{0} to see only "ISObjectContentGenerator" but this did not
> work too.
> 
> Is this a bug? I am using version 0.9.9.
> 
> LZ
> 
> 
> Ceki Gulcu wrote:
>>
>> Hello Lukas,
>>
>> Your configuration file looks good. I see no reason why logging output
>> should be generated correctly from some worker threads and not
>> others. Are you sure that the silent thread is active?
>>
>> Here are some remarks about your configuration file *unrelated* to the
>> problem your you are describing. As of logback version 0.9.15, if no
>> class name is provided, layout property will default to
>> PatternLayout. This, the next two configuration excerpts are
>> equivalent:
>>
>> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
>>    <!-- no class attribute specified -->
>>    <layout>
>>      <Pattern>%d{HH:mm:ss} [%thread] %-5level %logger{20} -
>> %msg%n</Pattern>
>>    </layout>
>> </appender>
>>
>>
>> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
>>    <layout class="ch.qos.logback.classic.PatternLayout">
>>      <Pattern>%d{HH:mm:ss} [%thread] %-5level %logger{20} -
>> %msg%n</Pattern>
>>    </layout>
>> </appender>
>>
>> There is another minor observation I would like to make.
>>
>> Setting the level of a threshold filter to TRACE makes it (the filter)
>> a pass through filter. The threshold filter in FileAppender is set to
>> the level TRACE.  On the other hand, setting such a filter does not
>> hurt either, except perhaps cluttering the configuration file.
>>
>> Lukas Zapletal wrote:
>>> Hello,
>>>
>>> I have application with 4 threads called M, 1, 2 and 3. Its using Logback
>>> over slf4j in normal way:
>> [snip]
>>
>>   > The problem: I cannot see error messages logged by one of "worker"
>> threads.
>>> I have no clue why. Its not from freemarker.cache package - its different
>>> package (com.pike.blabla).
>>>
>>> --
>>> Lukas Zapletal
>>
>> -- 
>> Ceki Gülcü
>> Logback: The reliable, generic, fast and flexible logging framework for
>> Java.
>> http://logback.qos.ch
>> _______________________________________________
>> Logback-user mailing list
>> Logback-user at qos.ch
>> http://qos.ch/mailman/listinfo/logback-user
>>
>>
> 
> 
> -----
> --
> Lukas Zapletal
> http://lukas.zapletalovi.com

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