Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/21068#discussion_r191520704
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/config.scala
---
@@ -328,4 +328,19 @@ package object config {
CACHED_FILES_TYPES,
CACHED_CONF_ARCHIVE)
+ /* YARN allocator-level blacklisting related config entries. */
+ private[spark] val YARN_EXECUTOR_LAUNCH_BLACKLIST_ENABLED =
+
ConfigBuilder("spark.yarn.blacklist.executor.launch.blacklisting.enabled")
+ .booleanConf
+ .createOptional
--- End diff --
why createOptional vs createwithdefault? Depending on what we decide for
limit, worse case is we just have default false.
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