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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