Github user andrewor14 commented on a diff in the pull request: https://github.com/apache/spark/pull/8639#discussion_r42300656 --- Diff: docs/running-on-mesos.md --- @@ -194,6 +194,10 @@ conf.set("spark.mesos.constraints", "tachyon=true;us-east-1=false") For example, Let's say `spark.mesos.constraints` is set to `tachyon=true;us-east-1=false`, then the resource offers will be checked to see if they meet both these constraints and only then will be accepted to start new executors. +Spark rejects offers for slaves with unmet constraints for 120 seconds by default. +This makes mesos not sending the rejected offers again and again. +The reject offer duration is configurable using `conf.set("spark.mesos.rejectOfferDurationForUnmetConstraints", "60")` (for example). + --- End diff -- I actually don't think this is worth documenting. I can't imagine anyone who wants to set this explicitly as long as we pick a sane enough default.
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