twitter/scalding — pull request #155 by avibryant (2012-08-15 22:35:58+00:00)
Title: allow jobs to see and modify JobConf props when overriding config

This is a breaking change: it changes the API of Job.config to include an implicit Mode (even though we could get at it globally through Mode.mode instead - comment if you think that would be better). It also gets rid of the unionValues mechanism in HadoopMode, which means that if you relied on that you'll need to change your Job's implementation of config to preserve the old values coming from the JobConf.