[jboss-user] [Tomcat, HTTPD, Servlets & JSP] - Re: IllegalStateException: Current state = FLUSHED, new stat

[Raist_Majere]

As sais here, using FileAppender or any "common" subclass leads to errors on clusters http://www.oreillynet.com/cs/user/view/cs_msg/17235.

The problem is due to Log4J not rolling the files consulting the underlying system. Log4J mantains a counter of how many bytes has written to the file. So every node has it's own counter and when another node has already rolled the file, you find that problem.


  |   protected
  |   void subAppend(LoggingEvent event) {
  |     super.subAppend(event);
  |     if((fileName != null) &&
  |                      ((CountingQuietWriter) qw).getCount() >= maxFileSize)
  |       this.rollOver();
  |    }
  | 
As said in the post of the url I've given you sould either subclass RollingFileAppender and change it's subAppend method or use any other mean of logging, like JMS or JMX.

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