What is a good way to pass config variables to workers?
I've tried setting them in environment variables via spark-env.sh, but, as far as I can tell, the environment variables set there don't appear in workers' environments. If I want to be able to configure all workers, what's a good way to do it? For example, I want to tell all workers: USE_ALGO_A or USE_ALGO_B - but I don't want to recompile.
