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From mokader <moka...@cisco.com>
Subject Re: Log4j configuration
Date Wed, 28 Jul 2010 17:27:24 GMT

Thanks Jake,

Is there any way to override the configuration or remove the existing
appenders.

would the  call to LogManager.shutdown()and then
DOMConfigurator.configure(initUrl) work. 

Thanks in advance,
Mohammed
 

Jacob Kjome wrote:
> 
> Log4j configuration is cumulative.  One call to configure() does not
> override 
> another.  Instead, the configurations are combined.  Each time you
> configure() 
> on a config file that defines an appender, a new one will be added rather
> than 
> blow away the old one.  Therefore you get duplicate logging as more than
> one 
> appender is active.
> 
> That said, it seems like this behavior was configurable?  Or maybe we
> merely 
> discussed it a while back since the default behavior is somewhat
> surprising to 
> users?  Maybe one of the other Log4j developers recalls this discussion
> and 
> can provide details?
> 
> 
> Jake
> 
> 
> On Wed, 28 Jul 2010 03:17:25 -0700 (PDT)
>   mokader <mokader@cisco.com> wrote:
>> 
>> Hi,
>> 
>> I am adding logging enhancement to my app. There is already a log4j
>> wrapper
>> is available in my app. But the existing is in jar and I can not modify.
>> The
>> problem is, now I have two log4j.xml file. one for my enhancement and
>> other
>> for existing one.
>> 
>> I first initialize existing log4j wrapper, it uses
>> DOMConfigurator.configure(initUrl) to configure. After this I call my new
>> APIs, I follow the same DOMConfigurator.configure(initUrl) to override
>> the
>> configuration.
>> 
>> The problem here is, I have custom appender, which I specified in
>> log4j.xml
>> of my enhancement, but the custom appender is called twice - once from
>> existing APIs and another from my APIs. 
>> 
>> I dont know how log4j is invoking my custom appeder, when existing APIs
>> are
>> initialized. I looked this from stack trace.
>> -- 
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>> Sent from the Log4j - Users mailing list archive at Nabble.com.
>> 
>> 
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>> 
> 
> 
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> 

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