bmarcott edited a comment on issue #27207: [WIP][SPARK-18886][CORE] Make Locality wait time measure resource under utilization due to delay scheduling. URL: https://github.com/apache/spark/pull/27207#issuecomment-581102206 @tgravescs I updated with the new config to switch to legacy behavior as well as some doc/variable renaming. After reading more through `SchedulerBackend` impls: 1. decided to assume resource offers are full resource by default, to match previous behavior for any `SchedulerBackend`s not touched in this PR. 2. I only found `MesosFineGrainedSchedulerBackend` which doesn't use `CoarseGrainedSchedulerBackend` and decided not to touch it since it is deprecated and from the design looks like "all free resources" can't be tracked. Test updates are still needed, but wanted to get your feedback first.
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