Guten Tag Olivier Cailloux, am Samstag, 10. Oktober 2020 um 15:57 schrieben Sie:
It is possible to detect (at least under Linux, but, I suppose, in other OSes as well) that a process has a file open, so this seems feasible, at least in principle; and it seems like a natural requirement for programs designed to allow parallel instances. I am surprised I didn’t see anything related to this in the logback manual. Is there a reason not to want what I want?
Many users most likely simply prefer to have one known schema of log file names, like a static name in your case, the current month and year etc. Many apps supporting concurrency in general, which is not only multiple processes, but threads as well, use Nested Diagnostic Context instead to provide IDs/names of processes or threads WITHIN one and the same log file. Many tools processing those log files are prepared to support that and allow e.g. filtering based on that additional data. Sometimes it's even necessary to log that way to see e.g. when multiple instances block each other using their log timestmap or something like that. So while you should be able to implement an appender doing what you like yourself, from my experience most people simply prefer to do it differently and therefore there might simply be no built-in solution available yet. Mit freundlichen Grüßen, Thorsten Schöning -- Thorsten Schöning E-Mail: Thorsten.Schoening@AM-SoFT.de AM-SoFT IT-Systeme http://www.AM-SoFT.de/ Telefon...........05151- 9468- 55 Fax...............05151- 9468- 88 Mobil..............0178-8 9468- 04 AM-SoFT GmbH IT-Systeme, Brandenburger Str. 7c, 31789 Hameln AG Hannover HRB 207 694 - Geschäftsführer: Andreas Muchow