With the "standard" IOListener, it was easy to trace each connection within the log output, because each connection was handled by a different thread. Filtering by thread ID, gave the full picture.
With the MinaListener, multiple connections are handled by a single thread, and it's not possible to differentiate between the sessions within the log output. I see MINA provides a SessionLogger, and the latest FTP Server code also refers to the (now defunct) IoSessionLogger, as well as a reference to MDC. However I don't see MDC as the magic wand solution here, as it simply provides a per-thread area for static data. I'm guessing the MINA group have hit these problems already, hence the provision of the SessionLogger in the first place. Obviously, using it throughout FTP Server will require passing it around, or at least a way to get at it. Just wondering: where do we go from here?
