[logback-dev] [JIRA] (LOGBACK-841) Support multiple attached appenders for AsyncAppender

Wed, 24 Apr 2013 15:09:40 -0700

Ian Brandt commented on Improvement LOGBACK-841

Makes sense. My Log4J config was like this:

Logger to be filtered -> AsyncAppender (with filters)
                                |
                                |-> ConsoleAppender
                                |
                                |-> RollingFileAppender
                                |
Other Loggers ---------> AsyncAppender (without filters)



The idea was to eliminate the filtering for all but the loggers that are known to need it.



If I push the "fork" up to the loggers then I'd end up with 4 {{AsyncAppender}}s instead of 2, and 2 of those appenders would have identical configurations duplicated including filter duplication.  For any more sets of filters add 2 more {{AsyncAppender}}s each.



Would a synchronous "Tee" appender—that is an appender that synchronously copies its events to all attached appenders—be a sensible workaround?





Logger to be filtered -> TeeAppender (with filters)
                                |
                                |-> AsyncAppender -> ConsoleAppender
                                |
                                |-> AsyncAppender -> RollingFileAppender
                                |
Other Loggers ---------> TeeAppender (without filters)






Or am I going about this all wrong?
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