In looking at Log4j source, if one uses a File based Appender, it looks like calls to the various Category log functions (debug, info, error, etc) are held up until the actual File I/O occurs via the QuietWriter class. I did notice the immediateFlush boolean in WriterAppender, and although it helps performance, it is considered a heavy tradeoff to turn off immediateFlush. I just want to make sure that I am not missing anything; Log4j does not have message queing functionality does it? Craig R. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]