Hello, Thank you for the attached files showing what you have come up with. While the dump trigger is clear (a log statement of level error or whatever the triggering threshold is), I don't see a "start accumulation" trigger. If I understand correctly, during the dump all events currently in the cyclic buffer will be dumped. If the buffer size is large, then all events up to the previous error will be dumped. If the buffer size is small, too few events may be dumped. Hence my question about the "start accumulation" trigger. Cheers, mweeda wrote:
Thanks for your help, Ceki.
The attached files will show you what I came up with. Synchronization issues are avoided by having the same Appender add events to the CyclicBuffer and dump its contents. Ease of use is pretty high, since log.error(message) triggers a buffer dump. Configuration changes would allow log.X and higher to trigger a dump.
-- Ceki Gülcü Logback: The reliable, generic, fast and flexible logging framework for Java. http://logback.qos.ch