Thanks Peter, yes I left a bit of context out. I was working on a Groovy script, and using
logger.info() to output lots of info for debugging purposes. I was hoping to use
logger.debug(), and use the debug log level temporarily. And I was hoping to find a way to control the whole collection at once. But couldn't find an easy way to do this so have not bothered to pursue.
I guess the answer is as you say, it has to be managed separately for different processes. And there's no built-in config for groovy logging. Oh well, it was worth an ask.