I use log4j in a Stateful Session EJB in Weblogic server,
 
when It try to output the log info to a file at the same time,
then some info is lost. the Appender we used is RollingFileAppender,
the API of this Appender use Synchronized lock.Does this mean
log4j implements singlton,but instances of EJBs can't synchronize the output to one file at the same time?
 
How can I slove this problem?
 
any good idea?
 
Thanks,
 
Jennifer chen

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