Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/10366#discussion_r47972323
--- Diff:
core/src/main/scala/org/apache/spark/deploy/rest/mesos/MesosRestServer.scala ---
@@ -99,7 +99,10 @@ private[mesos] class MesosSubmitRequestServlet(
// cause spark-submit script to look for files in SPARK_HOME instead.
// We only need the ability to specify where to find spark-submit
script
// which user can user spark.executor.home or spark.home
configurations.
- val environmentVariables =
request.environmentVariables.filterKeys(!_.equals("SPARK_HOME"))
+ //
+ // Due to https://issues.scala-lang.org/browse/SI-6654, `filterKeys`
returns an
+ // unserializable object,so we must call `.map(identity)` on the
result.
+ val environmentVariables =
request.environmentVariables.filterKeys(!_.equals("SPARK_HOME")).map(identity)
--- End diff --
this line will fail style tests because it's too long. Need to break it
into 2
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