Failover with log4j 1.3: How to set up a backup appender?

[Karena Schroven <ka...@yahoo.de>]

Hi,
 
I have problems configuring a backup appender. 
 
What I want to do is the following:
 
I have different clients which send messages to a log server. When the server is down for some reason, a backup server should receive these messages.
 
My client config file looks like this:
 
  <appender name="backup" class="org.apache.log4j.net.SocketAppender">
    <param name="RemoteHost"   value="localhost" />  
    <param name="Port"         value="4560" /> 
    <param name="LocationInfo" value="True" />
  </appender>
 
  <appender name="LogServer" class="org.apache.log4j.net.SocketAppender">
    <param name="RemoteHost"   value="logger.XXX.local" />  
    <param name="Port"         value="4565" /> 
    <param name="LocationInfo" value="True" />
    <errorHandler class="org.apache.log4j.varia.FallbackErrorHandler">
      <root-ref/>
      <appender-ref ref="backup"/>
    </errorHandler>
  </appender>
 
  <root>
    <priority value="All" /> 
    <appender-ref ref="LogServer" />  
  </root>
 
 
I am using log4j 1.3alpha-8. I looked in this list and saw that there is no error handling anymore in version 1.3.
 
But the mechanism with errorHandler provided with log4j 1.2.14 seems to be exactly what I want to do. Is there a way with log4j 1.3 to do this easily?
 
Any help would be appreciated.
 
Thanks,
Karena


		
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