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From Ceki Gülcü <c...@qos.ch>
Subject RE: Multiple Log4J instances in one VM
Date Wed, 07 Aug 2002 08:16:52 GMT

Hmm, that is not it either. I was thinking of simply checking whether
log4j is already configured. If a component detects that log4j is
configured, it should not configure log4j.

Here is a more elaborate explanation:

http://marc.theaimsgroup.com/?l=log4j-user&m=102775658930710&w=2


At 09:01 07.08.2002 +0100, you wrote:
>As Ceki points out, there are other ways of solving this, e.g. by using
>different hierarchies for the different "programs".
>
>See e.g. org.apache.log4j.net.SocketServer for an example of how to obtain
>this.
>
>--
>
>Thomas
>
>
>
>  | -----Original Message-----
>  | From: Thomas Muller [mailto:ttm@online.no]
>  | Sent: 07 August 2002 08:22
>  | To: Log4J Users List
>  | Subject: RE: Multiple Log4J instances in one VM
>  |
>  |
>  |
>  |
>  |  | -----Original Message-----
>  |  | From: Hitzbleck, Andreas (ext. Mitarbeiter)
>  |  | [mailto:Andreas.Hitzbleck@KVB.de]
>  |  | Sent: 07 August 2002 08:18
>  |  | To: 'log4j-user@jakarta.apache.org'
>  |  | Subject: Multiple Log4J instances in one VM
>  |  |
>  |  |
>  |  | Hello list,
>  |  |
>  |  | I am developing a java program which is integrated in a big content
>  |  | management system. Thus, our code runs with some other java programs
>  |  | developed by other companies in one virtual mashine.
>  |  |
>  |  | Unfortunately, the Log4J initialization of one program of another
>  |  | company overwrites our Log4J configuration or - if we start up
>  |  | our program later - vice versa. I think that is because of the
>  |  | statically implementation(s) of the configure() methods in
>  |  | Property- Basic- and DOMConfigurator?
>  |  |
>  |  | Is there a way to solve this problem or to work around it? Would
>  |  | it help to implement my own classloader and load the Log4J classes
>  |  | through this loader?
>  |
>  | Yes - different classloaders can utilize different log4j libraries and
>  | configurations.
>  |
>  | --
>  |
>  | Thomas
>  |
>  |
>  |
>  |
>  |
>  |
>  | *************************************************************************
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>
>*************************************************************************
>Copyright ERA Technology Ltd. 2002. (www.era.co.uk). All rights reserved.
>The information supplied in this email should be treated in confidence.
>No liability whatsoever is accepted for any loss or damage
>suffered as a result of accessing this message or any attachments.
>
>________________________________________________________________________
>This email has been scanned for all viruses by the MessageLabs SkyScan
>service. For more information on a proactive anti-virus service working
>around the clock, around the globe, visit http://www.messagelabs.com
>________________________________________________________________________
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--
Ceki


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